Acousto-optic_modulator_by_Crystal_Technology https://wiki-40m.ligo.caltech.edu/Instrument_Data_Sheets?action=AttachFile&do=get&target=doubling_crystal_oven-controller_fromCovesion https://wiki-40m.ligo.caltech.edu/Instrument_Data_Sheets?action=AttachFile&do=get&target=AOmod_CrystalTechnology_model1080AF-AIFO-1.0