Optical input preamplifier

Details Optical input preamplifier Optical input preamplifier

2006-04-11

2006-04-11

Nguyen, Khanh V. (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including atomic particle or radiant energy impinging on a...

C250S2140AG

Reexamination Certificate

active

07026877

ABSTRACT:
An optical input preamplifier includes a photodiode for converting an input optical signal into a photocurrent as an output current, pre-amplifying circuit for pre-amplifying the output current from the photodiode wherein the output current is pre-amplified to form a pre-amplifying current, and an output circuit device converting the pre-amplifying current into an output signal. Therefore, the output current from the photodiode passes through the pre-amplifying circuit and the output circuit unit to substantially enhance the sensitivity of the optical input preamplifier.

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patent: 6771132 (2004-08-01), Denoyer et al.
patent: 6778021 (2004-08-01), Denoyer et al.

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