Signal quality
Optical networks are the backbone of the internet, carrying vast amounts of data over great distances at the speed of...
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March 26, 2025
Q is the quality of a communication signal and is related to BER. A lower BER gives a higher Q and thus...
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March 26, 2025
In a non-coherent WDM system, each optical channel on the line side uses only one binary channel to carry service information. The service transmission...
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March 26, 2025
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
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
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
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
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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