EXPANDING BEAM LASER AMPLIFIER AS A COST EFFECTIVE ARCHITECTURE FOR ASAT

Award Information
Agency: Department of Defense
Branch: Army
Contract: N/A
Agency Tracking Number: 15964
Amount: $49,967.00
Phase: Phase I
Program: SBIR
Awards Year: 1991
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Science Research Lab Inc
15 Ward St, Somerville, MA, 02143
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Dr Jonah Jacob
 Principal Investigator
 (617) 547-1122
Business Contact
Phone: () -
Research Institution
N/A
Abstract
THE EXPANDING BEAM LASER (EBL) AMPLIFIER CONCEPT IS PRESENTED AS A METHOD FOR EFFICIENT SCALING OF VARIOUS LASERS TO THE HIGH AVERAGE POWER LEVELS REQUIRED FOR ASAT APPLICATIONS. THE EBL AMPLIFIER CONCEPT INCREASES THE STAGE GAIN WHICH CAN BE EFFICIENTLY OBTAINED FROM A POWER AMPLIFIER BY FACTOS OF 10-30 SO THAT INTERMEDIATE AMPLIFIERS CAN BE ELIMINATED IN THE MOPA CHAIN. SUCH SIMPLIFICATION OF THE SYSTEM ARCHITECTURE RESULTS IN A SIGNIFICANT COST SAVINGS AND INCREASED RELIABILITY. ADDITIONAL ADVANTAGES INCLUDE REDUCE BEAM QUALITY SENSITIVITY TO LASER MEDIUM INHOMOGENEITIES, A SIMPLIFIED OPTICAL SYSTEM AND REDUCED LEVELS OF AMPLIFIED SPONTANEOUS EMISSION. TO ILLUSTRATE THE ADVANTAGES OF THIS ARCHIETECTURE, SRL HAS INVESTIGATED THE BENEFITS OF THE EBL FOR LARGE GROUND BASED RARE GAS HALIDE LASERS AND SMALLER CO2 LASERS. THE ADVANTAGES OF THE EBL AMPLIFIER LEAD TO A REDUCTION IN COST FOR HIGH AVERAGE POWER RARE GAS HALIDE LASER SYSTEMS OF A FACTOR OF 3 AND HAVE THE POTENTIAL TO MAKE THESE LASERS COST COMPETITIVE WITH OTHER GROUND BASED LASER (GBL) ASAT APPROACHES. IN PHASE I A DETAILED PROOF-OF-PRINCIPAL EXPERIMENT WILL BE DESIGNED. THE DESIGN WILL BE ACCOMPLISHED BY OBTAINING DATA OF THE RELEVANT LASER PARAMETERS ON AN EXISTING EXCIMER LASER FACILITY DURING PHASE I. THE EXPANDING BEAM AMPLIFIER WILL BE EXPERIMENTALLY VERIFIED IN PHASE II OF THIS SBIR.

* information listed above is at the time of submission.

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