Modular unstable ring resonator with multiple output couplers (USH0000099)
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Del.icio.us| IP.com Number | IPCOM000000099D |
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| Dated | Aug 5, 1986 UTC | ||
| Size | 5 page(s) (0.86 MB) | ||
| Disclosed by |
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Publication Summary
A modular unstable ring resonator utilizing several independent gain modules is used to obtain output of a multiple set of mutually coherent beams. Additionally, rigorous mutual coherence is maintained even when the system operates on more than one longitudinal mode or/and on more than one gain transition; specific frequency-control elements are eliminated; satisfactory operation is possible with one or more gain-medium modules disabled. Each segment of the ring resonator's optical path may contain a laser gain medium, an output mirror, and a beam expander for continuously circulating a portion of the system flux while also coupling out a portion of the flux from each output mirror. The plural outputs may be used individually or collectively.| Country | United States |
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| Language | English (United States) |
| Related Person(s) |
(OWNER) The United States of America as represented by the Secretary of the Army (INVENTOR) Jones, Robert W. (INVENTOR) Cason, III, Charles M. (INVENTOR) Perkins, James F. (ATTORNEY) Bush, Freddie M. (ATTORNEY) Garvin, John C. (ATTORNEY) Lane, Anthony T. |
| Related Document(s) |
(PATENT) USH000099
(PATENT) US03772609 (PATENT) US04011523 (PATENT) US04021845 (PATENT) US04190814 (PATENT) JP0001138 (PATENT) JP0024472 (PATAPP) US06/613481 |
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United States Patent |
USH0000099 |
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Jones , et al. |
August 5, 1986 |
Modular unstable ring resonator with multiple output couplers
Abstract
A modular unstable ring resonator utilizing several independent gain modules is used to obtain output of a multiple set of mutually coherent beams. Additionally, rigorous mutual coherence is maintained even when the system operates on more than one longitudinal mode or/and on more than one gain transition; specific frequency-control elements are eliminated; satisfactory operation is possible with one or more gain-medium modules disabled. Each segment of the ring resonator's optical path may contain a laser gain medium, an output mirror, and a beam expander for continuously circulating a portion of the system flux while also coupling out a portion of the flux from each output mirror. The plural outputs may be used individually or collectively.
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Inventors: |
Jones; Robert W. (Huntsville, AL), Cason, III; Charles M. (Huntsville, AL), Perkins; James F. (Huntsville, AL) |
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Assignee: |
The United States of America as represented by the Secretary of the Army (Washington, DC) |
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Appl. No.: |
06/613,481 |
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Filed: |
May 24, 1984 |
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Current U.S. Class: |
372/108 ; 372/93; 372/95 |
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Current International Class: |
H01S 3/081 (20060101); H01S 3/083 (20060101); H01S 003/08 (); H01S 003/081 () |
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Field of Search: |
372/94,95,108,93 |
References Cited
U.S. Patent Documents
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3772609 |
November 1973 |
Willett et al. |
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4011523 |
March 1977 |
Mansell et al. |
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4021845 |
May 1977 |
Wang |
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4190814 |
February 1980 |
Von Workum |
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Foreign Patent Documents
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0001138 |
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Jan., 1980 |
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JP |
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0024472 |
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Feb., 1980 |
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JP |
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Other References
Bykov et al. "CO.sub.2 Laser Generating Simultaneously Two
Wavelengths and Having High Amplitude & Freq. Stability", Prebory i
Teckhncka _E'ksperumenta, No. 6, pp. 161-162, Nov.-Dec. 1974. . |
Primary Examiner: Buczinski; Stephen C.
Assistant Examiner: Wallace; Linda J.
Attorney, Agent or Firm:
Bush; Freddie M. Garvin; John C. Lane; Anthony T.
Government Interests
DEDICATORY CLAUSE
The invention described herein may be manufactured, used, and licensed by or
for the Government for governmental purposes without the payment to us of any
royalties thereon.
Claims
We claim:
1. A modular unstable ring resonator consisting of: a plurality of beam turning
mirrors, spaced apart and disposed for providing a circuitous optical path that
forms the boundary of an area; a plurality of pairs of laser gain medium
modules and beam expander modules, at least one pair of said plurality of pairs
being disposed between adjacent ones of said beam turning mirrors in said
optical path, and a plurality of beam output means for providing mutually
coherent output beams, one of said beam output means being disposed between the
laser gain medium module and...