CW second harmonic generation with elliptical Gaussian beams
1996; Elsevier BV; Volume: 123; Issue: 1-3 Linguagem: Inglês
10.1016/0030-4018(95)00626-5
ISSN1873-0310
AutoresAndrew H. Steinbach, M. Rauner, Flávio C. Cruz, Jonas Bergquist,
Tópico(s)Advanced Fiber Laser Technologies
ResumoWe present a study of the efficiency and optimization of cw second harmonic generation by elliptical Gaussian laser beams. Elliptical focusing slightly improves conversion efficiency and reduces crystal damage risk when heavy walk-off is present. Single-pass measurements of the efficiency for doubling 515-nm radiation in beta-barium borate (BBO) agree with theory. Thermal effects, caused by radiation absorption, limit the doubling efficiency of single-frequency radiation in an external enhancement ring cavity.
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