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Testing

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CONCATENATION

is the process of summing the bandwidth of X containers (C-i) into a larger container. This provides a bandwidth X...
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  • March 26, 2025
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DALLE-2023-12-27-193927-An-image-representing-the-concept-of-Focusing-PRBS_-Pseudo-Random-Binary-Sequence-in-a-technological-and-abstract-style-The-image-features-a-digita

Focusing PRBS: Pseudo Random Binary Sequence

“In analog world the standard test message is the sine wave, followed by the two-­tone signal for more rigorous tests....
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  • March 26, 2025
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DALLE-2023-12-27-192406-An-image-depicting-the-concept-of-What-an-OTDR-can-do-for-you_-in-a-technical-and-illustrative-style-The-image-features-an-Optical-Time-Domain-Refl

What an OTDR can do for you?

The Optical Time Domain Reflectometer (OTDR) is useful for testing the integrity of fiber optic cables. An optical time-domain reflectometer...
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  • March 26, 2025
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What is the soak time period to detect LOS on a port?

What is the soak time period to detect LOS on a port?

To detect a failure that occurs at the source (e.g., laser failure) or the transmission facility (e.g., fiber cut), all...
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  • March 26, 2025
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osnr_dispersion

Measuring Coherent System OSNR using integral method

For coherent signals with wide optical spectrum, the traditional scanning method using an OSA or inband polarization method (EXFO) cannot...
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  • March 26, 2025
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FEC and Latency

Why does FEC introduce latency? The addition of FEC overhead at the transmit end and FEC decoding at the receive...
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  • March 26, 2025
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attenuator

Why is it preferable to put attenuator/pad at the Receive end of Optical Module?

Few analogies proving the subject:- If the distance is to short and the attenuator is too close to the transmitter,...
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  • March 26, 2025
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aws-interview

Brief introduction on Interviewing at Amazon Web Services (AWS)

AWS Network Development Engineer Interview Guide MapYourTech | Career & Interview Prep AWS Network Development Engineer Interview Guide A practical...
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  • March 26, 2025
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2b42613d-7040-43bf-ad6c-d05a9e069ffd

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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63710456-2117-4103-b0e4-443a1227be60

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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