Detection device including means for automatically slaving the s

Details Detection device including means for automatically slaving the s Detection device including means for automatically slaving the s

1996-12-27

1999-03-30

Pascal, Leslie

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359161, 359194, H04B 1006

Patent

active

058896058

ABSTRACT:
In a detector for detecting a frequency-modulated light wave including a PIN photodiode (2), biasing means (11, 12, 15) are introduced which are capable of automatically forward biasing or reverse biasing the PIN photodiode (2) depending on the received light power. The output voltage of a transimpedance preamplifier stage (6) receiving the signal from the PIN photodiode (2) is thus automatically limited to a value below the saturation threshold of this transimpedance preamplifier stage (6).

REFERENCES:
patent: 5410282 (1995-04-01), Larrick et al.
patent: 5734300 (1998-03-01), Yoder
Jerald Graeme, et al. "Circuit Options Boost Photodiode Bandwidth", Electrical Design News, (pp. 155-162), May, 1992.

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