MapYourTech is a premier optical networking education platform established in 2011, offering 550+ technical articles, 35+ professional courses, and specialized tools for fiber optics engineers worldwide.

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.

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.

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.

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Showing 541 - 550 of 577 results

Why does coherent detection introduce pre-FEC bit errors?

Why does coherent detection introduce pre-FEC bit errors? The DSP algorithm at the receive end detects and analyzes the phase...

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March 26, 2025

Invalid Data Flag or Suspect Interval in PM(Performance Monitoring) counters

The ITU standards define a “suspect internal flag” which should indicate if the data contained within a register is ‘suspect’...

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March 26, 2025

HO-ODU/LO-ODU CONCEPT

A Lower Order-ODU or LO-ODU is an ODUk, whose OPUk transports a inside mapped client. An Higher Order-ODU or HO-ODU is...

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March 26, 2025

What are main advantages and drawbacks of EDFAs?

The main advantages and drawbacks of EDFAs are as follows. Advantages Commercially available in C band (1,530 to 1,565 nm)...

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March 26, 2025

What is Optical Power Requirement and margin for a optics module’s power?

Optical power tolerance: It refers to the tolerable limit of input optical power, which is the range from sensitivity to...

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March 26, 2025

How to know if errors are due to linear or non-linear issue in an optical link?

When the bit error occurs to the system, generally the OSNR at the transmit end is well and the fault...

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March 26, 2025

Understanding multipliers and divisors value in calculating OTN frame rates (255,239,238,237 etc) for OPUk,ODUk and OTUk

**Multiplicative factor is just a simple math :eg. for ODU1/OPU1=3824/3808={(239*16)/(238*16)} Here value of multiplication factor will give the number of...

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March 26, 2025

A walk-through with non linear impairments in optical fiber

Non-linear interactions between the signal and the silica fibre transmission medium begin to appear as optical signal powers are increased...

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March 26, 2025

Difference between OTDR and COTDR

What is a OTDR ? Optical Time Domain Reflectometer – also known as an OTDR, is a hardware device used for measurement of...

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March 26, 2025

HD-FEC & SD-FEC differences

Items HD-FEC SD-FEC Definition Decoding based on hard-bits(the output is quantized only to two levels) is called the “HD(hard-decision) decoding”,...

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March 26, 2025

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