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2025

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What is the reason behind most of the EDFAs (Erbium Doped Fiber Amplifier) using only 980nm and 1480nm as their pumping wavelengths and not any other wavelengths?

The pump wavelength used is either 980nm or 1480 nm due to the availability of these laser sources.  In the...
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  • March 26, 2025
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Do we still need 50 ms(milliseconds) restoration for running telecom services?

It was always exciting discussing 50ms switching/restoration time perspective for telecom circuits for every engineer who belongs to some part...
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  • March 26, 2025
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Simplifying what and why of Raman Amplifier

Background Information The Raman amplifier is typically much more costly and has less gain than an Erbium Doped Fiber Amplifier (EDFA)...
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  • March 26, 2025
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Quick note on Physical Coding Sublayer (PCS) error in Optical System

What is PCS ? The Physical Coding Sublayer (PCS) is a networking protocol sublayer in the  Ethernet standards. This layer...
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  • March 26, 2025
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General Optical Signal flow

General Optical Signal Flow – OTU, OCH, ODU Explained | MapYourTech Recently I came across a non-optical background candidate who...
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  • March 26, 2025
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Quick note on Pre-FEC , Post-FEC ,BER and Q relation.

Bit Error Rate (BER) is a crucial performance metric. DWDM technology enables the transmission of multiple data streams along the...
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  • March 26, 2025
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A short discussion on 980nm and 1480nm pump based EDFA

A short discussion on 980nm and 1480nm pump based EDFA Introduction The 980nm pump needs three energy level for radiation...
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  • March 26, 2025
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BER and Q relation

The Bit Error Rate (BER) of a digital optical receiver indicates the probability of an incorrect bit identification. In other...
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  • March 26, 2025
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Automation in Optical Networking:If you are reading this you can do this !!!

Automation in Optical Networking If you are reading this you can do this!!! Google , ChatGPT, Stackoverflow and your little...
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  • March 26, 2025
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OSNR: What does this mean;Why do we need and How to take care of it?

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  • March 26, 2025
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