RUBIDIUM TITANYL ARSENATE-SILVER GALLIUM SELENIDE TANDEM OPTICAL PARAMETRIC OSCILLATOR
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机译：锡钛酸砷酸银-硒化镓串联光学参量振荡器
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摘要
An arrangement (10) for efficiently generating tunable pulsed laser output at 8-12 microns. The arrangement (10) includes a laser (12), a first optical parametric oscillator (14) including an x-cut rubidium titanyl arsenate crystal (20) and a second optical parametric oscillator (22) including a silver gallium selenide crystal (20). Energy from the laser (12) at a first wavelength is shifted by the crystal (20) and output at a second wavelength. The second wavelength results from a secondary process induced by a primary emission of energy at a third wavelength, the third wavelength resulting from a primary process generated from the first wavelength in the crystal. Mirror coatings are applied on the reflective elements (16 and/or 18) for containing the primary emission and enhancing the secondary process. The second optical parametric oscillator (22) then shifts the energy output by the first OPO (14) at the second wavelength to the desired fourth wavelength.
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