You are here

PHASE AND BEAM LOCKING OF LASER DIODE ARRAYS USING PHASE CONJUGATE RESONATORS

Award Information
Agency: Department of Defense
Branch: Army
Contract: N/A
Agency Tracking Number: 12815
Amount: $51,116.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Timeline
Solicitation Year: N/A
Award Year: 1990
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
2545 W 237th St - Ste B
Torrance, CA 90505
United States
DUNS: N/A
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Dr Chai Pei Kuo
 (213) 320-3088
Business Contact
Phone: () -
Research Institution
N/A
Abstract

PHYSICAL OPTICS CORPORATION PROPOSES AN INNOVATIVE TECHNICAL APPROACH TO ACHIEVE SIMULTANEOUS PHASE-LOCKING AND BEAM COMBINING OF A LASER DIODE ARRAY. THIS APPROACH RELIES ENTIRELY ON PHOTOREFRACTIVE PHASE CONJUGATE OPTICS, THUS AVOIDING THE ALIGNMENT SENSITIVITY OF OTHER EXTERNAL OPTICAL TECHNIQUES. ONE OF THE PRINCIPAL FEATURES OF A LASER WITH A PHASE CONJUGATE RESONATOR CAVITY IS THAT ITS OUTPUT IS VERY TOLERANT OF INTRACAVITY DISORIENTATION. THIS SUGGESTS THE POSSIBILITIES OF USING PHASE CONJUGATION TO COHERENTLY COUPLE THE GAIN MEDIA FROM SEVERAL DIODE LASERS TOGETHER IN A SINGLE PHASE CONJUGATE RESONATOR PRODUCING A DIFFRACTION LIMITED OUTPUT BEAM WHICH COMBINES THE POWER OF THE INDIVIDUAL LASERS. AN INNOVATIVE RING PHASE CONJUGATE CAVITY GEOMETRY AND A DOUBLE PHASE CONJUGATE GEOMETRY,UTILIZING SINGLE ELEMENT PHOTOREFRACTIVE BATIO3 CRYSTAL, ARE PROPOSED FOR THE LONG TERM STABLE LOCKING OF LASER DIODE ARRAYS WITH SINGLE MAIN LOBE OUTPUT. THESE CONFIGURATIONS CAN ACHIEVE SEVERAL IMMEDIATE ADVANTAGES BY OBTAINING A HIGH QUALITY LASER DIODE SOURCE AS A FUNDAMENTAL BUILDING BLOCK OF LASER COMMUNICATION SYSTEMS. THEY ARE: 1) HIGH POWER, HIGH-BRIGHTNESS LASER DIODE SOURCES WITH COMPACT SIZE; 2) ENVIRONMENTAL INSENSITIVITY AND HIGH BEAM QUALITY; AND 3) LONG LIFE TIME AND LOW POWER CONSUMPTION.

* Information listed above is at the time of submission. *

US Flag An Official Website of the United States Government