"Intliziyo" yelaser: i-gain medium

"Intliziyo" yeleza: gainmedium
In iteknoloji yelaser, ii-laser gainmedium(ekwaziwa ngokuba yinto esebenzayo okanye into esebenzayo nge-laser) yinxalenye ephambili yeilezaIfikelela ekuguqulweni kwenani lamasuntswana ngokumpompa, inika amandla okukhulisa ukukhanya, ihlawulela ilahleko kwi-resonant cavity, kwaye ngaloo ndlela ivelisa i-coherent laser output. Ngaphandle kwe-gain medium efanelekileyo, bekungayi kubakho i-laser esebenzayo.
1. Ingcamango esisiseko kunye nomgaqo osebenzayo we-gain media.
Umsebenzi we-gain media kukwandisa amandla okukhanya ngokukhupha umoya. Ngokwesiqhelo, ukumpompa kwangaphandle (ukumpompa okukhanya okanye ukumpompa kombane) kuyafuneka ukuze kufumaneke amandla okuguqula amandla amasuntswana akumgangatho ophezulu.
2. Iimfuneko zemidiya ephucukileyo yokufumana inzuzo:
Ayizizo zonke izixhobo ezinokusetyenziswa njenge-gain media. Iimfuno eziphambili: Utshintsho lweLaser: Kukho i-emission cross-section enamandla (o_em) kuluhlu lwe-wavelength ekujoliswe kuyo. Ukukhanya okuphezulu: Izinto zomsingathi zibonakala ngokucacileyo kwii-wavelengths ze-laser kunye nee-pump. Ukufunxwa kwepompo okusebenzayo: Ukufanisa umthombo wepompo okhoyo (njengokupompa kwe-808 nm LD Nd:YAG) kufanelekile kwixesha lobomi eliphezulu (T): Ixesha elide liluncedo kwi-Q-switching, ixesha elifutshane liluncedo kwi-modulation. Ukusebenza kakuhle kwe-quantum: Ukucima okuphantsi, ukufunxwa kwemeko evuyayo ephantsi. Imveliso ephezulu ye-o·T: Ukufezekisa i-gain ephezulu kunye ne-low threshold. I-wide gain bandwidth: Iluncedo kwi-wavelength tuning kunye ne-ultrashort pulses. Iipropati ze-thermal kunye ne-mechanical: Ukuqhuba okuphezulu kwe-thermal, i-thermo-optic coefficient ephantsi, i-high damage threshold. Ezinye: Uzinzo lweekhemikhali, akukho hygroscopicity, i-high damage threshold. Ezi mfuno zihlala zingqubana. Umzekelo, i-wide bandwidth idla ngokuthetha i-cross-section esezantsi, kwaye oku kufuna urhwebo kwiimeko zesicelo.
I-gain medium yeyona nto ibalulekileyoukusebenza kwelaserUkususela kwi-Nd:YAG yakudala ukuya kwiifayibha ze-optical ezinamandla aphezulu zanamhlanje, ukuqhubela phambili kwizixhobo kuye kwandisa ukusetyenziswa kwee-laser rhoqo. Kuyilo olusebenzayo, ukulinganisa kwamanani kudla ngokufuneka ukuze kuphuculwe uxinano lwe-doping, iinkqubo zokupompa, njl.njl.