Optical receiver

Details Optical receiver Optical receiver

1996-04-29

1999-06-29

Pascal, Leslie

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359189, 2502011, 250214AG, 330308, H04B 1006

Patent

active

059176393

ABSTRACT:
In an optical receiver including an avalanche photodiode (APD), a monitor circuit monitors the operating point of a preamplifier. A bias control circuit usually transfers a control signal received from an AGC (Automatic Gain Control) control circuit to an APD bias circuit. When the value being monitored by the monitor circuit exceeds a preselected level, the bias control circuit controls the APD bias circuit such that the above value coincides with the preselected level. The various sections of the receiver are free from damage ascribable to an increase in the photocurrent of the APD.

REFERENCES:
patent: 4495410 (1985-01-01), Minami et al.
patent: 4499609 (1985-02-01), Muska
patent: 4750217 (1988-06-01), Smith et al.
patent: 4870369 (1989-09-01), Bartenstein et al.
patent: 5015839 (1991-05-01), Tanikoshi
patent: 5113151 (1992-05-01), Yamamoto et al.
patent: 5625181 (1997-04-01), Yasuda

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