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Segmented solid-state laser resonators with graded reflectance micro-mirror analysis

1994; Springer Science+Business Media; Volume: 3; Issue: 4 Linguagem: Inglês

10.1088/0963-9659/3/4/003

1361-6617

R. Grünwald, Uwe Griebner,

Semiconductor Lasers and Optical Devices

Graded reflectance micro-mirror arrays (GRMMA) have been fabricated by simultaneous deposition of up to 1250 miniaturized dielectric graded reflectance mirrors (GRM) (diameters <400 mu m). Segmented, self-imaging unstable positive branch resonator configurations including GRMMA have been tested successfully with flashlamp-pumped Nd:glass rod lasers. Matrix shaped supermodes have been generated by adjusting the resonator round trip length to match the n=4 Talbot distance. The far field consists of 200 distinct but phase-correlated beamlets.