| 摘要 |
Crystal housing apparatus for adjustably positioning cooperating non-linear optical crystals in a laser beam generating system, includes a housing ( 50 ) with entry ( 60 ) and exit ( 62 ) windows for respective laser beams, respective holder means ( 72, 74, 76 ) to retain respective crystals within the housing in optical alignment with the windows, and means ( 86 ) mounting the respective holder means for individual fine rotational adjustment of the crystals about respective axes. Individual temperature control elements ( 120 ) are mounted in association with the respective holder means for controlling the temperature of the respective crystals and means ( 110, 114 ) is provided for effecting the fine rotational adjustment of the crystals.
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