MapYourTech — Homepage Hero

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The Optical Engineer's Reference Platform

Learn, Simulate & Designthe best of optical networking.

Q: What is MapYourTech?

MapYourTech is a premier optical networking education platform established in 2011, offering 1016+ technical articles, 67+ professional courses, and specialized tools for fiber optics engineers worldwide.

Q: What topics does MapYourTech cover?

MapYourTech covers optical networking including DWDM technology, WDM systems, OTN, SDH/PDH, coherent optics, OSNR optimization, Raman and EDFA amplifiers, fiber characterization, dispersion management, and optical network design.

Q: What is OSNR in optical networks?

OSNR (Optical Signal-to-Noise Ratio) is a critical performance metric that measures the ratio of signal power to noise power, essential for link budget calculations and ensuring reliable high-speed optical transmission in DWDM systems.

Q: What is DWDM technology?

DWDM (Dense Wavelength Division Multiplexing) combines multiple optical signals on different wavelengths onto a single fiber, enabling massive bandwidth expansion for metro networks, long-haul transmission, and data center interconnects.

Technical Articles to build your foundation, Courses to go deeper, Simulators and Calculators to design and practice, and Books based on industry experience — everything you need to excel at optical networking, in one place.

18+ years of hands-on optical networking, distilled — and still growing: from coherent optics and DWDM to terabit-scale networks

Start Learning Free Rise Compare Plans

Vendor-neutral & technology-focused Globally trusted, 193+ countries Written by industry engineers Publishing since 2011

FIBER ATTENUATION CURVE C-band: 1530-1565 nm

Operating windows1st · 2nd · 3rd

Min loss @ 1550 nm0.185 dB/km

ITU bands6 · O–U

1016+

Reference Articles

67+

Certified Courses

19+

Simulators & Tools

80+

Tech Infographics

Published Books

400K+

Global Visitors

MapYourTech — Pick Your Path

Start With Your Role

Pick Your Path — We'll Show You Where to Begin

Four roles, four starting points. Each path sequences the courses, simulators and references that match your work — so you begin at the right depth on day one.

1016+ technical articles 67+ structured courses 19 tools and simulators 80+ infographics

Most items on every path open free with a MapYourTech account. If none of the four fits exactly, start with the Student path — all eight of its opening resources are free.

Student PathOptical Networking FoundationTwelve free courses run from guided propagation and fiber attenuation through the ITU-T grid, DWDM channel spacing and OTN frame structure. Each one pairs with a calculator, so every concept lands on a real span number rather than staying theoretical.Browse 13 Free Courses

Quick access

Optical Networking Glossary Optical Networking Toolkit Infographics Collection (80+)

Nine resources, curated for this pathFree unless marked Premium

CourseFree

Optical Network Fundamentals61 lessons across six chapters, from guided propagation to a commissioned and monitored network.Open

CourseFree

Overview of Optical Networks61 lessons on light propagation, the optical windows and why fiber replaced electrical transmission.Open

CourseFree

Basics of Optical Transport Network42 lessons: the move from PDH and SDH to OTN, frame structure, and the ODU hierarchy.Open

CourseFree

IP over WDM37 lessons on the ITU-T grid, channel spacing and where the router meets the optical layer.Open

CourseFree

High-Capacity Direct-Detection Systems51 lessons comparing direct detection against coherent receivers, and where each one still wins on cost.Open

ToolFree

Link Attenuation CalculatorFiber attenuation, splices and connectors summed into a span loss budget in dB.Open

ToolFree

Shannon Limit CalculatorHow symbol rate and SNR set the capacity ceiling a modulation format can approach.Open

RefFree

Optical Networking GlossaryEvery acronym you will meet in the first year, defined with its standard reference.Open

CoursePremium

Coherent Optical Technology to 800GThe step after the free tier: 101 lessons from IQ modulation through receiver DSP and FEC.Open

All 67 coursesAll 19 toolsAll 1016 articles

Operations PathFault Isolation and Daily Field OperationsA fault gives you a trace, an alarm and a power reading, and the job is to turn those three into a location. The simulators here generate realistic OTDR traces with configurable events, and the reference libraries cover alarm taxonomy, specification limits and the performance counters worth collecting.Open MapYourOTDR Simulator

Quick access

Optical Alarms Knowledge Base Optical Troubleshooting Guide Specifications Reference

Nine resources, curated for this pathFree unless marked Premium

ToolFree

MapYourOTDR Simulator and ViewerConfigurable fault traces plus event classification, A/B span loss and ORL from a real .sor file.Open

ToolFree

Fiber Cut and Availability SimulatorCut rate, mean time to repair and route availability across protected and unprotected topologies.Open

ToolFree

Link Attenuation CalculatorLoss budgets that account for fiber attenuation per km, splice count and connector pairs.Open

ToolFree

Optical Networking ToolkitComposite power, reach, latency and dBm conversions collected in one field workspace.Open

CourseFree

Ethernet Alarms and Troubleshooting16 lessons on client-layer diagnostics, from protocol basics to structured fault isolation.Open

RefFree

Optical Network Alarms Knowledge BaseAlarm taxonomy and probable cause across multi-vendor optical systems, layer by layer.Open

RefFree

Optical Troubleshooting GuideA structured isolation method for live faults, ordered by what you can measure first.Open

ArticleFree

Optical Monitoring Implementation ChecklistWhich performance counters to collect, which managed entity carries each one, and the KPI it rolls into.Open

CoursePremium

Optical Network Synchronization and Timing91 lessons on frequency, phase and time of day, and holding a 5G cell site inside ±1.5 µs.Open

All 19 toolsTroubleshooting articlesTesting and performance courses

Design PathSpan Engineering and Margin DesignA design review asks two things: does the budget close, and can you show the working. These tools concatenate OSNR and GOSNR across spans, model Raman power transfer and tilt over a loaded C+L spectrum, and turn a demand forecast into a spectrum plan you can defend decibel by decibel.Open the OSNR and GOSNR Workbench

Quick access

Optical C+L SRS Visualiser Spectral Efficiency Calculator Coherent Formula Reference

Nine resources, curated for this pathFree unless marked Premium

ToolFree

OSNR and GOSNR Concatenation WorkbenchAdd span contributions in the linear domain and watch the end-to-end budget close or fail.Open

ToolFree

Optical Link OSNR SimulatorLaunch power, span loss and amplifier noise figure driving OSNR across a cascade.Open

ToolFree

Optical C+L SRS VisualiserRaman power transfer from the C-band blue edge to the L-band, and the tilt it leaves behind.Open

ToolFree

Spectral Efficiency CalculatorBits per symbol, roll-off and slot width resolved into b/s/Hz on the flexible grid.Open

CourseFree

Spectral Efficiency in Optical NetworksSix chapters and 42 sections: modulation formats, the Shannon bound and Nyquist WDM.Open

ArticleFree

Span Loss Capability and GOSNR MarginTwo separate ceilings on a long span, and why closing one does not close the other.Open

ArticleFree

C-Band, L-Band and C+L Band DWDMInter-band coupling, amplification architecture, tilt management and the migration path.Open

ToolPremium

OSNR vs GOSNR Professional SimulatorMulti-span linear noise against nonlinear interference, compared across 100G to 400G systems.Open

ToolPremium

OptiMap Pro Network DesignerDrag-and-drop topology design with amplifier placement and capacity planning on one canvas.Open

Architecture and design coursesPlanning and design articlesAll 19 tools

Architect PathTransport Strategy and Programmable ControlPluggable coherent optics moved the decision from the transponder shelf to the router line card, and it brought a power budget, a thermal contract and an interoperability question with it. This path covers what 400ZR and OpenZR+ actually require, how multi-vendor control is staged, and where the cost per bit lands.Read the 400ZR and OpenZR+ Analysis

Quick access

Coherent Formula Reference OTN and ITU-T Standards Explorer Market Research and Analytics

Nine resources, curated for this pathFree unless marked Premium

ArticleFree

400ZR Versus OpenZR+: Mode, FEC and ReachWhere the OIF baseline and the MSA extension diverge on FEC, frame container and symbol rate.Open

ArticleFree

Host Power and Thermal Design for Coherent PluggablesThe power and thermal contract a line card owes a high-power coherent module.Open

ArticleFree

Turn-Up, Retune and Reacquisition TimingFour timing cases separating a 40 ms recovery from a 200 s one on a coherent interface.Open

RefFree

Coherent Optical Transmission FormulasThe working formula set for coherent system design, each variable defined with its unit.Open

RefFree

OTN and ITU-T Standards ExplorerG.709, G.694.1 and the surrounding recommendations, searchable by clause and parameter.Open

RefFree

Market Research and AnalyticsMore than 50 reports on transceiver shipments, vendor position and deployment trends.Open

ToolFree

Optical Network DesignerSketch a topology, name the degrees and export the layout before the design review.Open

CoursePremium

Multi-Vendor Optical Network Automation Strategy91 lessons on hierarchical SDN control, the staged roadmap and the indicators that prove value.Open

CoursePremium

Optical Network Economics and Cost-per-Bit91 lessons: CapEx and OpEx drivers, power as an operating cost, router optics against transponders.Open

Network automation coursesData center interconnect articlesCoherent optics articles

MapYourTech — Simulators and Calculators

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Interactive Engineering Tools

Simulators Built on Real Network Experience

Concatenate OSNR and GOSNR across spans, read a real OTDR trace, model Raman tilt over C+L, size a hollow-core splice, design a topology — 32 browser-based tools with validated physics, and most of them open free.

WORKBENCHFREE

Margin & Budget

OSNR and GOSNR Concatenation Workbench

Add per-span OSNR and GOSNR contributions in the linear domain and watch the end-to-end budget close — or fall short of the required value.

Linear-domain sum

Try Free

VIEWERFREE

Fiber Testing

MapYourOTDR Simulator and Viewer

Open a real .sor trace or generate a synthetic one. Event classification separates splices from connectors, with A/B span loss, ORL and a PDF report.

Event detection

Try Free

VISUALISERFREE

C+L Band Impairments

Optical C+L SRS Visualiser

Raman power transfer from the C-band blue edge into the L-band, shown per channel, with the tilt correction the line system has to apply.

Per-channel tilt

Try Free

CALCULATORFREE

Link Planning

Optical Link Attenuation Calculator

Span length, connector count, splice count and fiber class in; an itemised loss breakdown and a pass or fail margin out.

No login needed

Try Free

SIMULATORFREE

Protection & Reliability

Fiber Cut and Availability Simulator

Set cut rate per 1000 km, repair time and topology, then read route availability and annual downtime for protected and unprotected paths.

Availability model

Try Free

SIMULATORFREE

Hollow-Core Fiber

HCF Splice Loss Simulator

Mode field diameter mismatch, lateral offset and angular tilt at a hollow-core joint, resolved into a splice loss in dB before you order the fusion recipe.

MFD mismatch model

Try Free

TOOLKITFREE

Everyday Utilities

Optical Networking Toolkit

The conversions an engineer reaches for a dozen times a day — dBm and mW, wavelength and frequency, composite power, reach, dispersion, Q to BER — in one page.

No login needed

Try Free

CALCULATORFREE

Latency & Propagation

Optical Fiber Latency Calculator

One-way and round-trip delay for any route, taking the fiber group index and equipment processing time into account rather than assuming c.

OWD and RTD

Try Free

SIMULATORPRO

OSNR & GOSNR

OSNR vs GOSNR Professional Simulator

Linear noise accumulation against nonlinear interference across a multi-span cascade, with real amplifier noise figures, compared from 100G to 400G.

Multi-span cascade

Try Now

PLANNERPRO

Network Design & Planning

OptiMap Pro Network Designer and Planner

Build a topology node by node, add spans, amplifiers and ROADM degrees, and let it compute end-to-end OSNR, span loss and the power budget.

Full topology builder

Try Now

Also available:GuardBand ProSpectraGuard ProEDFA Gain and NF SimulatorSubmarine Link SimulatorChannel Power EqualizerSpectral EfficiencyShannon Limit+15 more

View All 32 Tools

MapYourTech — Why Engineers Choose MapYourTech

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What Makes MapYourTech Different

Why Engineers Choose MapYourTech

Built on 18+ years of hands-on network engineering — every tool, course, and article is grounded in practical knowledge from designing, commissioning, and operating live optical networks.

Field-Validated Accuracy

Every specification checked against ITU-T, OIF and IEEE documents and real deployment data

Real Engineering Tools

19 tools including the GOSNR workbench and MapYourOTDR — most of them free, none of them videos

Find Answers Fast

Searchable text-first format — 1016+ articles structured as engineering references

Always Current

800G, 1.6T, 400ZR, C+L band, CPO — tracks the standards as they move

Certified Learning Paths

67+ courses with assessments and LinkedIn-shareable certificates — 12 open free

Vendor-Neutral Since 2011

No marketing spin — read by engineers in 193+ countries across 15 years

Start Learning Free No credit card required. 12 free courses, free simulators, and free articles the moment you sign in.

Articles Free

Hollow-Core-Fiber-Driven Changes to the Current SMF Link

Which components carry over unchanged from single-mode plant, which are re-qualified at a new operating point, which are …

Free
August 27, 2026

Hollow-Core Fiber Amplification: EDFA and Raman

Why an air core removes distributed Raman gain, raises the launch-power ceiling by three orders of magnitude, and hands the...

Free
August 27, 2026

Cost per Kilometer: Hollow-Core Against SMF Builds

Fiber cable is a minority line item in an outside-plant budget once civil works, splicing and transceivers are counted, and...

Free
August 27, 2026

OTN Technology Fundamentals: Frames, Layers and Standards

How ITU-T G.709 wraps any client signal in a fixed frame, adds error correction and six layers of …

Free
August 25, 2026

Ultralong-Haul Transmission in Submarine Optical Systems

A research-grade technical reference covering noise modeling, nonlinear physics, GSNR framework, and capacity design — with fully interactive formula calculators...

Free
August 22, 2026

Fibre Effective Area Selection for Transoceanic Spans

How the 80 to 153 µm² range trades nonlinear tolerance against bend loss, Raman efficiency and the number …

Free
August 21, 2026

Spectrum Allocation Split Calculator for Shared Fibre Pair

Total available spectrum, requested share and dead-band allowance return the sub-band start and stop frequencies, …

Free
August 21, 2026

Hold-Off Timer Selection Across IP and Optical Layers

Sizing the timer that lets optical or OTN protection finish its own recovery before the IP layer reacts to …

Free
August 18, 2026

Wait-to-Restore and Revertive Policy Selection

Choosing when a protection switch should return to the working path automatically, and what it costs when it does not....

Free
August 18, 2026

Protection and Restoration Mechanisms in DWDM and OTN Networks: Complete Comparison and Selection Guide

Every recovery mechanism from the fiber span to... …

Premium
August 27, 2026

Hybrid Hollow-Core and Solid-Core Span Design

Mixing ratio derived from effective length, the metro and long-haul cases, and the amplifier output ceiling that decides whether the......

Premium
August 27, 2026

In-Service Monitoring Design for Hollow-Core Routes

Weak backscatter moves the monitoring design toward a stable end-of-link reference and single-ended insertion-loss tracking instead of trace-shape analysis —......

Premium
August 27, 2026

Splice Loss Accumulation on Long Hollow-Core Routes

Draw length sets splice spacing, so a long route accumulates many joints, each with its own loss and... …

Premium
August 27, 2026

Patch Panel and Adapter Design for Hollow-Core Plant

Terminating air-guided fiber in a data-hall panel while commodity hollow-core connectors are still unavailable: adapter assemblies,... …

Premium
August 27, 2026

GSNR Budget for Mixed Hollow-Core and SMF Routes

Per-span accounting across two transmission media, with the nonlinear term near zero on hollow-core spans and... …

Premium
August 27, 2026

Protection Switching Between Hollow-Core and SMF Paths

A working path in air and a protection path in glass differ by 222 µs of delay and... …

Premium
August 27, 2026

Amplification Architecture for Hollow-Core and Multi-Core

An air-guided core hosts no erbium and returns no useful Raman gain, and a multi-core fiber needs gain in every......

Premium
August 27, 2026

Splicing and Connectorization Across HCF, SMF and MCF

Joint loss, alignment degrees of freedom, cycle time, equipment and field practicality for standard single-mode, multi-core... …

Premium
August 27, 2026

Courses Free

DWDM Technology

Optical Power, dB and dBm Arithmetic

MapYourTech

The decibel, dBm and milliwatt conversion, loss and gain addition along a fiber path, per-channel and composite power, and... …

52 Lessons

Free

Start Learning

DWDM Technology

Optical Interview Preparation: Role-Based Question Banks & Answer Frameworks

MapYourTech

Question banks organized by role — OTN, DWDM, coherent optics, and network planning... …

104 Lessons

Free

Start Learning

Advanced Technologies

Spectral Efficiency in Optical Networks

MapYourTech

A Comprehensive Professional Engineering Course 6 Chapters 42 Sections 24 Assessments 24 Examples About This Course This professional-grade course provides comprehensive coverage of spectral efficiency principles and advanced techniques in...

42 Lessons

Free

Start Learning

Optical Network Fundamentals

Basics of Optical Transport Network

admin

Learning Objectives Understand the fundamental concepts and terminology of Optical Transport Networks (OTN) Explain the evolution from legacy transport technologies (PDH/SDH/SONET) to OTN Identify the key drivers and business benefits...

42 Lessons

Free

Start Learning

DWDM Technology

Overview of Optical Networks

MapYourTech

Learning Objectives Understand the fundamental principles of optical communication and light propagation Analyze the electromagnetic spectrum and optical window characteristics for fiber transmission Compare optical communication advantages over traditional electrical...

61 Lessons

Free

Start Learning

Advanced Technologies

High-capacity Direct-Detection Systems

MapYourTech

Learning Objectives Understand the fundamental principles of direct-detection optical communication systems Compare direct-detection systems with coherent detection systems Identify key applications and advantages of direct-detection technology Analyze the basic architecture...

51 Lessons

Free

Start Learning

Courses Premium

Advanced Technologies

Multi-Band Transmission Across S, C and L Bands

MapYourTech

Ten modules on transmission across a 15 THz window, where fibre attenuation and dispersion both vary strongly with frequency, Raman power transfer... …

111 Lessons

Free

Start Learning

Advanced Technologies

Multi-Rail Line Systems and High-Fibre-Count Interconnect

MapYourTech

Optical line system design for the case where the unit of deployment is dozens of fibre pairs rather than one, and where several rails share amplification, monitoring... …

111 Lessons

Free

Start Learning

Advanced Technologies

Optical Amplification Engineering

MapYourTech

Design an optical amplifier line from first principles: EDFA gain and the noise-figure floor, ASE accumulation across a cascade, gain flatness and tilt, distributed Raman and hybrid... …

82 Lessons

Free

Start Learning

Interview Preparation

Capacity Planning & Margin Management for Transport Networks

MapYourTech

Turn a demand forecast into a spectrum and margin plan, predict quality of transmission with the GSNR framework, and defend every decibel of margin on a route. Ten modules run...

100 Lessons

Free

Start Learning

Network Architecture & Design

Optical Network Architects Foundation Course

MapYourTech

Every parameter an optical network architect sets, checks, or defends in a design review — fiber class and effective area, span loss and margin, required... …

121 Lessons

Free

Start Learning

Advanced Technologies

Coherent Optical Technology: Physical Principles to 800G System Design

MapYourTech

Ten modules that build from the complex optical field and IQ modulation through dual-polarization detection, receiver DSP, forward error correction, and... …

101 Lessons

Free

Start Learning

Learning Paths Careers &

Optical Networking Career in the AI Era

Positioning, role evolution, and a five-year roadmap for optical engineers as automation moves from... …

Premium Pro
July 9, 2026

Structure of a Winning Resume

Order the sections, quantify the results, and format the page so a recruiter reads the right thing in the first...

Premium Pro
July 5, 2026

Telling Real Stories with STAR: A Behavioral Interview Guide

Keep the framework’s discipline. Rebuild the delivery so the listener never notices the skeleton. 4 story... …

Premium Pro
May 25, 2026

How to Read Interview Rejection Feedback Carefully

Most rejection emails tell you something useful. The trouble is that the useful part is buried under template language designed...

Premium Pro
May 25, 2026

The Reference Check: Choosing, Coaching, and Following Up

Three names on a list is not a reference strategy. One peer, one manager, one cross-functional partner —... …

Premium Pro
May 25, 2026

How to Receive Feedback Without Getting Defensive

Receiving feedback well is a working skill, not a personality trait. The engineers who treat it as a skill keep......

Premium Pro
May 25, 2026

How to Talk About a Project That Failed Spectacularly

The bigger the failure, the more carefully you have to tell the story — four structural... …

Premium Pro
May 25, 2026

Mentoring Across Generations: What Boomers, Gen X, Millennials, and Gen Z Need from Each Other

A working engineering team... …

Premium Pro
May 25, 2026

Giving Feedback That Lands: An Engineer’s Framework

A three-part structure that works peer-to-peer, manager-to-report, and report-to-manager. Less personal than the alternatives. More useful than the vague version......

Premium Pro
May 25, 2026

MapYourTech — Career & Industry Intelligence

Career & Industry Intelligence

Know Your Worth. Win Your Interview. Read the Market.

Salary benchmarks worldwide, real interview questions with expert answers, and industry adoption signals — built specifically for optical networking professionals.

Salary Intelligence

Optical Engineering Salary Benchmarks

NOC / Transport (0–3 yrs)$62K–$88K

Network Design (3–6 yrs)$95K–$135K

Senior Architect (8–12 yrs)$XXX–$XXX

DCI / Coherent Engineer$XXX–$XXX

Submarine Systems Engineer$XXX–$XXX

3 of 5 ranges lockedPro plan covers all 18 roles × 6 regions.

Get Access

18 roles · 6 regionsFull Benchmarks

Interview Insights

Real Questions from Real Rounds

Tier-1 CarrierSr Engineer — Round 2

"Walk me through how you would debug a sudden OSNR degradation on a 96-channel DWDM link."

Check amplifier gain tilt first, then isolate by muting channel blocks of 8–12 wavelengths to identify whether the issue is broadband or channel-specific. Verify launch power at each ILA against the original commissioning baseline. Compare the current OTDR trace against the reference looking for new events or bend losses. If tilt is the culprit, adjust the gain equalizer at the affected node. If channel-specific, suspect transponder, MUX/DEMUX port, or VOA misconfig...

Continue with Pro

Also covered — 200+ questions

400ZR vs ZR+SRS in C+LDP-16QAM reachOTN overhead+199 more

200+ expert answersView All Questions

Free Resource

Quick Refresher — No Login Required

"What is the difference between OSNR and GOSNR, and why does it matter in 400G systems?"

OSNR measures linear noise only; GOSNR also accounts for nonlinear interference (NLI) from SPM, XPM, and FWM. In 400G with 16QAM and tighter spectral packing, NLI grows and the gap widens — a system that looks healthy on OSNR can still fail margin on GOSNR.

Full answer — Free

"Name three OTN overhead functions and their roles in transport network management."

TCM tracks performance across operator boundaries; PM tracks end-to-end path integrity using BIP-8; APS coordinates working/protect path switching during fiber cuts or node failures.

Full answer — Free

No login · Instant accessOpen Refresher

Market Intelligence

Industry Adoption Signals

800G CoherentScaling

400ZR / ZR+ in DCIMainstream

C+L Band BuildsExpanding

Open Line SystemsGrowing

53 premium reportsBrowse Reports

MapYourTech — Engineer Reviews

Trusted by Optical Engineers Worldwide

What Engineers Say About MapYourTech

Real feedback from engineers using the platform for design decisions, career growth, and daily reference

4.9

from 200+ engineer reviews

400K+Engineers worldwide

193+Countries · Global Reach

Verified User

Tools & Simulators

"OSNR calculator saved me hours of spreadsheet work"

Used the OSNR simulator and link budget calculator for an actual network design. Got results I could present directly in our engineering proposal.

AnuragNetwork Design Engineer

Course Graduate

Courses

"OTN course directly accelerated my promotion"

Completed OTN and coherent optics courses, earned certificates, added to LinkedIn. Within two months, a recruiter reached out about a senior role.

MohamedOptical Transport Engineer

Book Reader

Field Experience

"The bridge between theory and real deployments"

Unlike traditional academic texts, focuses on operational, maintenance, and development aspects engineers encounter daily.

Engineering ProfessionalOptical Network Engineer, APAC

Verified User

Automation

"Unlocked automation methods I didn't know existed"

After 18 years in telecom on SDH, IP/MPLS, and DWDM, MapYourTech unlocked automation methods that helped me reduce errors and speed operations across our production network.

DavidSenior Telecom Engineer

Career Insights User

Career Growth

"Career intelligence helped me negotiate a better role"

Practical information that helps professionals learn, excel, and advance. Salary benchmarks and interview prep gave me real negotiating power.

KumarPrincipal Engineer

Verified User

Articles

"Straight to the point — no filler content"

Written content I can read at my own pace. Real examples with code. No hour-long videos. Perfect for busy engineers who need answers during live troubleshooting.

Verified EngineerNetwork Operations, Tier-1 Carrier

Start Learning Free Compare Plans

MapYourTech — Books

Books by MapYourTech

Three books, one author — founder Sanjay Yadav, 18+ years in optical networking · 800+ copies sold

In-Depth

Personally watermarked — your name, your copy, yours to keep Secure Stripe Payments Instant Digital Download PDF & EPUB Formats

MapYourTech — iOS Apps

MapYourTech Apps

Optical engineering tools, in your pocket.

Native iOS apps that put the platform, calculators and trace tools you use on the bench onto your phone — built by the same engineers behind MapYourTech.

MapYourTech Pro

iPhone & iPadFree

The full MapYourTech website on your phone — articles, courses and tools, all in one app.

MapYourOTDR

iPhone & iPadFree

Open any .sor trace — event classification, A/B span loss, ORL and bidirectional splice loss. PDF reports, offline.

Optical Toolkit

iPhone & iPadFree

47 calculators, 59 reference tables and a native OTDR .sor reader — fully offline, no data collected.

MapYourContact

iPhone & iPadFree

Turn your contact details, LinkedIn or any link into a styled, scannable QR code. Offline, no account.

Coming soon More field tools are on the way, built to the same standard — launching through the year.

Community · Live

Join the conversation

Ask questions, share what you're learning, and connect with engineers across optical networking.

Open the Community

New! 48hr Premium Pro Plan

Experience everything MapYourTech offers — full Premium Pro access for 48 hours. Try before you subscribe.

Try Now Want the full year? See all plans and pricing →

One-time · 48 Hours

Learn, Simulate & Designthe best of optical networking.

Pick Your Path — We'll Show You Where to Begin

Simulators Built on Real Network Experience

Why Engineers Choose MapYourTech

Field-Validated Accuracy

Real Engineering Tools

Find Answers Fast

Always Current

Certified Learning Paths

Vendor-Neutral Since 2011

Articles Free

Articles Premium

Courses Free

Courses Premium

Learning Paths Careers &

Know Your Worth. Win Your Interview. Read the Market.

What Engineers Say About MapYourTech

"OSNR calculator saved me hours of spreadsheet work"

"OTN course directly accelerated my promotion"

"The bridge between theory and real deployments"

"Unlocked automation methods I didn't know existed"

"Career intelligence helped me negotiate a better role"

"Straight to the point — no filler content"

Books by MapYourTech

Optical Network Communications: An Engineer's Perspective

Automation For Network Engineers Using Python And Jinja2

Practical Guide For Cracking Optical Interviews

Optical engineering tools, in your pocket.

New! 48hr Premium Pro Plan

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