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Measurements >> RF Measurements >> Optical receiver Noise measurement
https://designers-guide.org/forum/YaBB.pl?num=1391444171

Message started by raja.cedt on Feb 3^rd, 2014, 8:16am

Title: Optical receiver Noise measurement
Post by raja.cedt on Feb 3^rd, 2014, 8:16am

dear All,
I would like to know typical noise measurement of a optical receiver, my circuit consists of two single ended Trans impedance amplifiers and then these outputs are amplified with 3 stage differential amplifiers (around 70dB again total) . In my lab we are measuring single ended noise variance with real time scope and multiplying with sqrt(2) for the total differential noise(assuming both are UN-correlated), is this UN-correlated assumption valid in all cases or any exceptions?

Thanks,
Raj.