Co2+: MgAl2O4 He Mea Hou No Saturable Absorber Passive Q-switch

ʻO ka pauku keʻa absorption kiʻekiʻe o 3.5 x 10-19 cm2 e ʻae i ka hoʻololi ʻana iā Q o Er: laser aniani me ka nānā ʻole ʻana o intracavity me ke kukui uila a me ka pumping diode-laser. ʻO ka hoʻohaʻahaʻa ʻana i ka mokuʻāina hoʻohiwahiwa ka hopena i ka ʻokoʻa kiʻekiʻe o ka Q-switch, ʻo ia hoʻi ka ratio o ka mua (hōʻailona liʻiliʻi) i ka absorption saturated ʻoi aku ka kiʻekiʻe ma mua o 10. ʻO ka hope, hāʻawi ka maikaʻi o ka optical, mechanical, and thermal properties o ke aniani i ka manawa e hoʻolālā ai i ka compact. a me nā kumu laser hilinaʻi me kēia Q-switch passive.
Hoʻemi ʻia ka nui o ka hāmeʻa a hoʻoneʻe ʻia kahi kumu mana voli kiʻekiʻe ke hoʻohana ʻia nā passive Q-switch a i ʻole ka saturable absorbers e hana i nā pulse laser mana kiʻekiʻe ma mua o nā Q-switch electro-optic. ʻO ke aniani ikaika a paʻa i kapa ʻia ʻo spinel polishes maikaʻi. Me ka loaʻa ʻole o nā ion uku uku, hiki ke hoʻololi maʻalahi ka cobalt i ka magnesium i ka host spinel. No ka ipukukui uila a me ka diode laser pumping, ʻo ka Er: glass laser's high absorption cross section (3.510-19 cm2) hiki iā Q-switching me ka nānā ʻole intracavity.
He 580 mW ka awelika o ka mana puka me ka laula pulse e like me ka 42 ns a me ka mana pahū o 11.7 W. Ua helu ʻia ka ikehu o ka pulina Q-hoʻololi hoʻokahi ma kahi o 14.5 J, a ʻo ka mana kiʻekiʻe he 346 W. ma kahi o ka hana hou ʻana ma kahi o 40 kHz. Eia kekahi, ua nānā ʻia kekahi mau mokuʻāina polarization o ka Co2+: LMA passive Q hoʻololi.