Apa, kutayika kwamphamvu komanso kupititsa patsogolo magwiridwe antchito a laser a Nd:YAG zowonekera zowonekera zidafufuzidwa.Pogwiritsa ntchito ndodo ya 0.6 pa.% Nd:YAG ceramic ndodo yokhala ndi 3 mm m'mimba mwake ndi 65 mm kutalika,coefficient coefficient ndi kuyamwa mayamwidwe pa 1064 nm anayesedwa kukhala 0.0001 cm-1 ndi 0.0017 cm-1, motero.Kwa kuyesa kwa laser ya 808 nm side-pumped laser, mphamvu yowonjezera ya 44.9 W inapezedwa ndi kutembenuka kwa kuwala kwa 26.4%, komwe kunali kofanana ndi 1 pa.% kristalo imodzi.Kutengera pulogalamu ya 885 nm yopopa molunjika kumapeto, mayeso otsatirawa a laser adawonetsa kuwongolera kwapamwamba kwa 62.5% ndi mphamvu yayikulu yotulutsa ya 144.8 W idapezedwa ndi mphamvu yapampopi ya 231.5 W. mu Nd: YAG ceramic laser kuti tidziwe.Imatsimikizira kuti mphamvu yayikulu komanso kutulutsa kwamphamvu kwa laser kumatha kupangidwa ndi mtundu wapamwamba kwambiri wa Nd: YAG ceramic ndodo limodzi ndi ukadaulo wopopa mwachindunji wa 885 nm.
Pepalali limapereka mphamvu yothamanga kwambiri, yopapatiza, yapakati pa infrared (MIR) laserat 6.45 µm, kutengera BaGa4Se7 (BGSe) crystal optical parametric oscillator (OPO) yopopa ndi laser 1.064 µm.Mphamvu yothamanga kwambiri pa 6.45 µm inali mpaka 1.23 mJ, ndi kugunda kwapakati kwa 24.3 ns ndi kubwerezabwereza kwa 10 Hz, yofanana ndi kutembenuka kwa kuwala kwa kuwala kwa 2.1%, kuchokera ku kuwala kwa mpope 1.064 µm mpaka 6.45 6.45.Kuwala kopanda ntchito kunali pafupifupi 6.8 nm.Panthawiyi, tidawerengera molondola momwe OPO amafananizira gawo pa BGSe crystal yomwe imapopedwa ndi laser 1.064 µm, ndipo kachitidwe ka manambala kachitidwe kakuwunikira kuwunikira -outputcharacteristics pa 6.45 µm, komanso zotsatira za kutalika kwa kristalo pakuchita bwino kwa kutembenuka.Kugwirizana kwabwino kunapezeka pakati pa kuyeza ndi kuyerekezera.Monga momwe tikudziwira, iyi ndiye mphamvu yothamanga kwambiri pa 6.45 µm, yokhala ndi mzere wocheperako kwambiri wa laser yamtundu uliwonse wa MIR ns mu BGSe-OPO wopopa ndi chosavuta cha 1.064 µm oscillator.Dongosolo losavuta komanso lophatikizika la 6.45 µm OPO, lokhala ndi mphamvu yakugunda kwamphamvu komanso utali wocheperako, limatha kukwaniritsa zofunikira pakudula minofu ndikuwongolera kutulutsa kwa minofu molondola.
Mu pepalali, tikuwonetsa laser ya langasite (LGS) electro-optic Ho:YAG cavity-dumped laser yomwe imapondereza kudalira kudalira kwa kugunda kwa nthawi mu ma lasers osinthika a Q.Kuthamanga kosalekeza kwa 7.2 ns kunapezedwa pa mlingo wobwerezabwereza wa 100 kHz.Kupindula ndi kristalo wa LGS kulibe mphamvu yosinthira ya piezoelectric ring effect komanso depolarization yotchedwa thermally induced, sitima yokhazikika yothamanga inapezedwa ndi mphamvu yotulutsa 43 W. Kwa nthawi yoyamba, kugwiritsa ntchito laser yotayidwa pakati pa infrared (m'ma -- IR) ZnGeP2 (ZGP) optical parametric oscillator (OPO) yazindikirika, ndikupereka njira yodalirika yopezera kubwereza kwapamwamba komanso nthawi zazifupi za nanosecond pulse kwa ma ZGP OPO amphamvu kwambiri apakati pa infrared.Mphamvu yotulutsa mphamvu inali 15 W, yofanana ndi nthawi ya 4.9 ns ndi kubwereza kwa 100 kHz.
Tikuwonetsa kwa nthawi yoyamba m'badwo wa octave-spanning mid-infrared pogwiritsa ntchito BGSe nonlinear crystal.A Cr:ZnS laser system yopereka 28-fs pulses pamtunda wapakati wa 2.4 µm imagwiritsidwa ntchito ngati gwero la mpope, lomwe limayendetsa mbadwo wapakati pa pulse kusiyana kwapakati pa kristalo wa BGSe.Zotsatira zake, cholumikizira cholumikizana chapakatikati pa infrared chopitilira kuyambira 6 mpaka 18 µm chapezedwa.Zikuwonetsa kuti kristalo wa BGSe ndi chida chodalirika cha burodibandi, m'badwo wocheperako wapakatikati pa infrared kudzera pafupipafupi kutembenuka ndi magwero a pampu ya femtosecond.
1.53 W zonse zolimba-state nanosecond pulsed mid-infrared laser pa 6.45 µm
