https://www.lightwaveonline.com/home/article/16668422/differential-output-optical-receivers
DIFFERENTIAL OUTPUT OPTICAL RECEIVERS | Lightwave Online
The APD-based PGR 20312 is a new differential output fiberoptic receiver for OC-48/STM-16 WDM applications. It offers an extended bandwidth greater than 2.0...
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https://optocom.com/receivers.htm
Optocom | Optical Receivers Modules
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