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US 4,029,976 AGranted
Amplifier for fiber optics application
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsFranklin H. Fish, Rodney S. Katz
Life of this patent
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Abstract
An amplifier for use with a photodiode in an electro-optical transmission ne. A transimpedance amplifier is connected to an output port of a photodiode and a T-network feedback circuit is provided as a feedback element in order to provide a significant increase in the transimpedance gain-bandwidth product.
Claims6
In an electro-optical transmission line, a receiver for converting light signals to electrical signals comprising,
- a photodiode for receiving light inputs and having an electrical input terminal and an output signal port for providing electrical signals proportional to the input of light to said photodiode,
- a source of voltage connected to said electrical input terminal for reverse biasing said photodiode,
- an amplifier having an output terminal and an input terminal connected to said output signal port of said diode, and
- a T-network feedback circuit connected between said amplifier output terminal and said input terminal for increasing transimpedance gain-bandwidth product of said amplifier.
1 more element
Dependencies are inferred from the claim text.