Technical
The ITU approved DWDM band extends from 1528.77 nm to 1563.86 nm, and divides into the red band and the...
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March 26, 2025
A Raman amplifier is a well-known amplifier configuration. This amplifier uses conventional fiber (rather doped fibers), which may be co-or...
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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
Bit error rate, BER is a key parameter that is used in assessing systems that transmit digital data from one...
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March 26, 2025
Why it is Good to have ORL >30dB for general fiber links? Optical return loss (ORL) is the logarithmic ratio...
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March 26, 2025
Basic understanding on Tap ratio for Splitter/Coupler Fiber splitters/couplers divide optical power from one common port to two or more...
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March 26, 2025
As we know that either homodyne or heterodyne detection can be used to convert the received optical signal into an electrical form. In the...
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March 26, 2025
What Is Coherent Communication? Definition of coherent light A coherent light consists of two light waves that: 1) Have the...
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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
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