US 7,009,760 B2Granted

Optical 2R/3R regeneration

AssigneeFinisar Corporation

InventorsSol P. DiJaili, Jeffrey D. Walker, John M. Wachsman

Life of this patent

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Abstract

Optical regenerators are disclosed, one of which includes a splitter having an input signal input, and first and second outputs, where the first output is connected to a first input of an optical flip-flop that also includes an output. A first OAND gate includes a first input connected to the output of the optical flip-flop, and also includes a second input and an output. A second OAND gate has a first input connected to the second output of the splitter, and includes a second input and an output. A variable oscillator having an input and an output is arranged so that the output is connected to the second input of the second OAND gate and to the second input of the first OAND gate. Finally, a feedback controller has an input connected to the second OAND gate output, and an output connected to the variable oscillator input.

Claims21

Dependent claims

An optical 3R regenerator, comprising:

a splitter having a first input and first and second outputs, the splitter configured to receive an input signal at the first input;
an optical flip-flop having a first input and an output, the first input being connected to the first output of the splitter;
a first optical AND gate having first and second inputs and an output, the first input being connected to the output of the optical flip-flop;
a second optical AND gate having first and second inputs and an output, the first input being connected to the second output of the splitter;
a variable oscillator having an input and an output, the output being connected to the second input of the second optical AND gate and to the second input of the first optical AND gate;
and
a feedback controller having an input and an output, the input being connected to the output of the second optical AND gate, and the output being connected to the input of the variable oscillator.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/844,017Filed 12 May 2004 · continuation
Priority: 9 Mar 2001
Published: US 2004/0207906 A121 Oct 2004
Granted: 7 Mar 2006
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

H04B 10/299
In which processing or amplification is carried out without conversion of the main signal from optical form: signal waveform processing, e.g.…
H01S 5/50
Semiconductor lasers: amplifier structures not provided for in groups H01S5/02 - H01S5/30
H04B
Transmission
H01S
Devices using the process of light amplification by stimulated emission of radiation

Family

Application60/274,496Us provisional application · filed 9 Mar 2001
Application60/274,474Us provisional application · filed 9 Mar 2001
Application60/274,437Us provisional application · filed 9 Mar 2001
Application10/029,523Parent of this continuation · filed 21 Dec 2001
US 2004/0207906 A1Pre-grant publication · published 21 Oct 2004
US 6,765,715 B1Parent of this continuation
US 7,009,760 B2This patent

From the US filing history. Foreign family members aren’t listed.