Phased Array Laser System (PALS).
Final rept. Jul 85-Jul 86,
TRW SPACE AND TECHNOLOGY GROUP REDONDO BEACH CA APPLIED TECHNOLOGY DIV
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This final report for the Phased Array Laser System PALS project presents analyses and design approaches for a high brightness space based HF phase conjugate laser system answering current SDI needs. These efforts, both analytic and subscale experimental, are first steps toward a conceptual design for an SDI SBL system with substantial advantages over conventional non phase conjugate systems. The analyses deal with the master oscillator, power amplifier, phase conjugation and beam director subsystems. ALPHA type devices comprising the MOPA are modeled with the ANOMCLAMLFCM codes. The assembly for separating the high power conjugated beam from the low power master oscillator beam is modeled with a French polarization grating code and U of Arizona and OCLI quarter-wave retarder codes. A phase-conjugator SBS cell with 40-atm xenon is modeled with BOUNCEBRIWON codes. Multisegmented primary and monolithic secondary mirror beam director assemblies are modeled with wave optics codes develolped in this project. Subscale experiments on xenon gas and CC14 liquid SBS phase conjugation explored dependence of SBS reflectivity and conjugation fidelity on parameters such as beam quality degradation by aberrators and on the fnumber of the focusing geometry.
- Lasers and Masers
- Antimissile Defense Systems