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US 2003/0198432 A1Published application
Repetitive waveform generator recirculating delay line
AssigneeRaytheon Company
InventorsRobert A. Rosen, Kapriel V. Krikorian, Irwin L. Newberg
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Abstract
A recirculating delay line that includes an optical delay circuit generates repetitions of an input signal waveform that is of limited time duration.
Claims23
A repetitive waveform generator comprising:
- a circuit for generating an optical signal having a predetermined duration;
- a first optical coupler responsive to said optical signal and an optical feedback signal;
- an optical delay circuit responsive to said first optical coupler and providing a delayed version of said first coupler output as an optical delay circuit output;
- and
- a second coupler responsive to said optical delay circuit output for providing a waveform generator output, and for providing a portion of said optical delay circuit output as said optical feedback signal to said first coupler;
- wherein said first coupler provides said feedback signal to said optical delay circuit;
- and
- whereby said waveform generator output comprises a replica of said input optical signal and a series of copies of said replica.
5 more elements
A repetitive waveform generator comprising:
- a circuit for generating an optical signal having a predetermine duration;
- and
- means for recirculating said optical signal to generate repetitions of said optical signal.
An optical recirculating delay line comprising:
- a first optical coupler for receiving an input optical signal of limited duration that is to be repeated a predetermined number of times, and further for receiving a feedback signal;
- a fiber optic delay circuit responsive to said first optical coupler output and providing a delayed version of said first optical coupler output as a fiber optic delay circuit output;
- and
- a second optical coupler responsive to said fiber optic delay circuit output and providing a waveform generator output and a portion of said fiber optic delay circuit output that is provided as said feedback signal to said first optical coupler;
- whereby said waveform generator output comprises a replica of said input signal and a series of copies of said replica.
2 more elements
Dependencies are inferred from the claim text.