Nkọwa nke elu ike semiconductor laser mmepe akụkụ nke otu

Nchịkọta nke ike dị elusemiconductor lasermmepe akụkụ nke mbụ

Ka arụmọrụ na ike na-aga n'ihu na-abawanye, diodes laser (laser diodes ọkwọ ụgbọala) ga-aga n'ihu na-edochi teknụzụ ọdịnala, si otú ahụ na-agbanwe otú e si eme ihe ma na-enyere aka ịmepụta ihe ọhụrụ. Nghọta maka mmụba dị ịrịba ama na lasers semiconductor dị elu nwekwara oke. Ntughari nke eletrọn na lasers site na semiconductor bụ nke izizi gosipụtara na 1962, na ọganihu dị iche iche nke nkwado sochirila nke butere nnukwu ọganihu na ntughari nke eletrọn na lasers na-arụpụta ihe dị elu. Ọganihu ndị a akwadola ngwa dị mkpa site na nchekwa anya ruo na ịkparịta ụka n'igwe ruo n'ọtụtụ ebe mmepụta ihe.

Nyochaa ọganihu ndị a na nchikota ha na-eme ka ọ pụta ìhè na enwere ike inwe mmetụta dị ukwuu ma na-agbasawanye n'ọtụtụ akụkụ nke akụ na ụba. N'ezie, na ọganihu na-aga n'ihu nke laser semiconductor lasers ike dị elu, mpaghara ngwa ya ga-eme ka mgbasawanye ahụ dịkwuo elu, ma nwee mmetụta dị ukwuu na ọganihu akụ na ụba.

Ọgụgụ 1: Ntụle nke luminance na iwu Moore nke laser semiconductor dị elu

Diode-pumped siri ike-ala lasers naeriri lasers

Ọganihu na lasers semiconductor dị elu emewokwa ka mmepe nke teknụzụ laser mgbada, ebe a na-ejikarị lasers semiconductor na-akpali (pump) kristal doped (diode-pumped solid-state lasers) ma ọ bụ doped fibers (fiber lasers).

Ọ bụ ezie na lasers semiconductor na-enye ike laser nke ọma, obere na nke dị ọnụ ala, ha nwekwara oke isi abụọ: ha anaghị echekwa ike na nchapụta ha nwere oke. N'ụzọ bụ isi, ọtụtụ ngwa chọrọ lasers abụọ bara uru; A na-eji otu na-agbanwe ọkụ eletrik ka ọ bụrụ ikuku laser, nke ọzọ na-eme ka ìhè nke ikuku ahụ pụta ìhè.

Igwe ọkụ steeti siri ike diode.
N'ọgwụgwụ 1980s, iji semiconductor lasers na-agbapụta laser steeti siri ike malitere inweta mmasị azụmahịa dị ukwuu. Diode-pumped solid-state lasers (DPSSL) n'ike n'ike na-ebelata nha na mgbagwoju anya nke sistemu njikwa okpomọkụ (nke bụ ndị na-ekpo ọkụ okirikiri) wee nweta modul, bụ ndị na-ejila oriọna arc mee ihe iji gbapụta kristal laser steeti siri ike.

A na-ahọrọ ogologo ogologo nke laser semiconductor dabere na nchikota nke njirimara absorption nke na-enweta uru nke laser steeti siri ike, nke nwere ike ibelata ibu ọkụ nke ukwuu ma e jiri ya tụnyere ụdị ikuku ikuku nke arc oriọna. N'iburu n'uche na ewu ewu nke neodymium-doped lasers na-ebupụta 1064nm wavelength, 808nm semiconductor laser abụrụla ngwaahịa kachasị mma na mmepụta laser semiconductor ihe karịrị afọ 20.

Emere ka arụmọrụ mgbapụta diode dị mma nke ọgbọ nke abụọ kwe omume site na mmụba nke lasers semiconductor multi-mode yana ike ime ka obosara ikuku dị warara guzosie ike site na iji nnukwu Bragg gratings (VBGS) n'etiti 2000s. Àgwà mmịpụta adịghị ike na nke dị warara nke gburugburu 880nm kpalitere mmasị dị ukwuu na diodes mgbapụta dị elu na-enwu enwu. Lasers arụmọrụ dị elu na-eme ka o kwe omume ịgbapụta neodymium ozugbo na ọkwa laser dị elu nke 4F3/2, na-ebelata mperi quantum ma si otú a na-emezi mmịpụta ọnọdụ ntọala na ike dị elu, nke ga-abụ nke anya anya ọkụ ọkụ ga-ejedebe.

Ka ọ na-erule mmalite afọ iri nke abụọ nke narị afọ a, anyị na-ahụ mmụba ike dị ukwuu na lasers 1064nm otu transverse mode, yana lasers ntụgharị ugboro ugboro na-arụ ọrụ na anya na anya ultraviolet wavelengths. Nyere ogologo ndụ ike elu dị elu nke Nd: YAG na Nd: YVO4, arụ ọrụ DPSSL Q ndị a na-enye ume ume dị elu na ike kachasị elu, na-eme ka ha dị mma maka nhazi ihe onwunwe na ngwa micromachining dị elu.