Broadband optical receiver with active bias feedback circuit

Details Broadband optical receiver with active bias feedback circuit Broadband optical receiver with active bias feedback circuit

1990-11-01

1992-09-08

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

330116, H01J 4014

Patent

active

051460793

ABSTRACT:
A broadband optical receiver which exhibits low noise and distortion characteristics. An active bias feedback circuit stabilizes the quiescent operating currents of a low noise amplifier coupled to the receiver photodetector. A transformer matches the impedance of the amplifier to an attenuator.

REFERENCES:
patent: 3714597 (1973-01-01), Reynolds
patent: 4574249 (1986-03-01), Williams
patent: 4792987 (1988-12-01), Tumeo
patent: 4798950 (1989-01-01), Hosoda et al.

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