Copper-laser oscillator with adjoint-coupled self-filtering injection
- Lawrence Livermore National Laboratory, P.O. Box 808, L-463, Livermore, California 94551 (United States)
A new injection-controlled laser resonator developed to achieve diffraction-limited beam quality for high-gain short-pulse lasers is reported. The resonator is seeded with a short-pulse laser signal by adjoint-coupled injection. The two-times diffraction-limited injection beam is self-filtered through a prepulse cavity propagation to improve its beam quality. The use of a self-imaging unstable resonator diminishes the edge-diffraction-induced beam deterioration. A beam quality of 1.1--1.3 times diffraction limited is achieved throughout the entire 70-ns laser pulse of a 30-W copper-vapor laser.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 45538
- Journal Information:
- Optics Letters, Vol. 20, Issue 6; Other Information: PBD: 15 Mar 1995
- Country of Publication:
- United States
- Language:
- English
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