Joshua C Bienfang

US Patent:

7035297, Apr 25, 2006

Filed:

Jan 30, 2004

Appl. No.:

10/769723

Inventors:

Craig A. Denman - Albuquerque NM, US
Paul D. Hillman - Albuquerque NM, US
Gerald T. Moore - Albuquerque NM, US
John M. Telle - Tijeras NM, US
Brent W. Grime - Dayton OH, US
Joshua C. Bienfang - Washington DC, US

Assignee:

The United States of America as represented by the Secretary of the Air Force - Washington DC

International Classification:

H01S 3/10
G02F 1/35

US Classification:

372 21, 359330

Abstract:

1064-nm and 1319-nm light respectively generated by two lasers is combined and injected into a doubly resonant sum-frequency generator. The optical path length of the sum-frequency generator is adjusted responsive to feedback of the 1319-nm light to maintain 1319-nm resonance. Feedback of 1064-nm light is concurrently used to adjust the 1064-nm laser responsive to the optical path length to maintain 1064-nm resonance. Light output from the sum-frequency generator is compared to the sodium Dwavelength i. e. , approximately 589 nm, and the 1319-nm laser is responsively adjusted to eliminate any differential. This abstract is provided to comply with the rules requiring an abstract, and is intended to allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

US Patent:

20210311119, Oct 7, 2021

Filed:

Apr 6, 2021

Appl. No.:

17/223554

Inventors:

- Gaithersburg MD, US
Joshua Copeland Bienfang - Bethesda MD, US

International Classification:

G01R 31/317
H03K 5/133

Abstract:

A temporal jitter analyzer analyzes temporal jitter and includes: a time delay controller; a time delay member; a delay measurement circuit; an edge generator in communication with the time delay member and that receives the delayed primary signal from the time delay member and produces a reference signal from the delayed primary signal; a decision circuit in communication with the edge generator and that: receives the reference signal from the edge generator; receives a detector signal; and produces a raw decision signal from the detector signal such that a value of the raw decision signal depends on the reference signal; and a decision circuit readout in communication with the edge generator and the decision circuit and that: receives the reference signal from the edge generator; receives the raw decision signal from the decision circuit; and produces a decision signal from the raw decision signal based on the reference signal.