Nhọrọ nke isi iyi laser kacha mma: laser semiconductor emission emission nke dị n'akụkụ nke mbụ

Nhọrọ nke kacha mmaisi iyi laserIhe osise: Laser semiconductor emission laser
1. Okwu Mmalite
Laser semiconductorA na-ekewa ibe n'ime ibe laser na-ewepụta n'ọnụ (EEL) na ibe laser na-ewepụta n'elu oghere (VCSEL) dịka usoro nrụpụta dị iche iche nke resonators si dị, a na-egosikwa ọdịiche nhazi ha kpọmkwem na Foto 1. Ma e jiri ya tụnyere ibe laser na-ewepụta n'elu oghere kwụ ọtọ, mmepe teknụzụ laser na-ewepụta n'ọnụ na-eto nke ọma, nwere oke ogologo ebili mmiri, dị elu.elektrọ-opticalarụmọrụ mgbanwe, nnukwu ike na uru ndị ọzọ, dabara adaba maka nhazi laser, nkwukọrịta anya na mpaghara ndị ọzọ. Ugbu a, laser semiconductor na-ewepụta n'akụkụ bụ akụkụ dị mkpa nke ụlọ ọrụ optoelectronics, ngwa ha ekpuchiwokwa ụlọ ọrụ, nkwukọrịta, sayensị, ndị ahịa, agha na ikuku. Site na mmepe na ọganihu nke teknụzụ, ike, ntụkwasị obi na arụmọrụ mgbanwe ike nke laser semiconductor na-ewepụta n'akụkụ aka ekpe ka mma nke ukwuu, atụmanya ngwa ha na-abawanye ụba.
Ọzọ, m ga-eduga gị ka ị ghọtakwuo mma pụrụ iche nke imepụta ihe n'akụkụlaser semiconductor.

Foto nke 1 (aka ekpe) laser semiconductor na-ewepụta akụkụ na (n'aka nri) oghere kwụ ọtọ na-ewepụta eserese nhazi laser

2. Ụkpụrụ ọrụ nke semiconductor emission emissionlaser
Enwere ike kewaa usoro nke laser semiconductor nke na-ewepụta n'ọnụ ụzọ n'ime akụkụ atọ ndị a: mpaghara na-arụ ọrụ nke semiconductor, isi iyi mgbapụta na resonator optical. N'adịghị ka resonators nke lasers elu-ewepụta oghere kwụ ọtọ (nke mejupụtara enyo Bragg elu na ala), resonators dị na ngwaọrụ laser semiconductor nke na-ewepụta n'ọnụ ụzọ bụ ihe nkiri anya n'akụkụ abụọ. E gosiri usoro ngwaọrụ EEL na nhazi resonator na Foto nke 2. A na-eme ka photon dị na ngwaọrụ laser semiconductor nke na-ewepụta n'ọnụ ụzọ dịkwuo elu site na nhọrọ ụdị na resonator, a na-emekwa laser ahụ n'akụkụ dị ka elu substrate. Ngwaọrụ laser semiconductor nke na-ewepụta n'ọnụ ụzọ nwere ọtụtụ ogologo ọrụ ma dabara adaba maka ọtụtụ ngwa bara uru, yabụ ha na-aghọ otu n'ime isi mmalite laser kacha mma.

Ndekọ nyocha arụmọrụ nke laser semiconductor na-ewepụta n'akụkụ kwekọrọ na laser semiconductor ndị ọzọ, gụnyere: (1) ogologo oge laser lasing; (2) Ọgba aghara Ith, ya bụ, ọgba aghara nke diode laser na-amalite imepụta oscillation laser; (3) Ọgba aghara na-arụ ọrụ, ya bụ, ọgba aghara na-akwọ ụgbọala mgbe diode laser ruru ike mmepụta enyere, a na-etinye paramita a na nhazi na mgbanwe nke sekit draịva laser; (4) arụmọrụ mkpọda; (5) Ngba aghara kwụ ọtọ Akuku θ⊥; (6) Ngba aghara kwụ ọtọ Akuku θ∥; (7) Lelee Im ugbu a, ya bụ, nha ugbu a nke chip laser semiconductor na ike mmepụta enyere.

3. Ọganihu nyocha nke GaAs na laser semiconductor nke dabeere na GaN
Laser semiconductor nke dabere na ihe GaAs semiconductor bụ otu n'ime teknụzụ laser semiconductor kacha etozu. Ugbu a, ejirila laser semiconductor nke dị nso na infrared band (760-1060 nm) nke dị n'akụkụ GAAS (760-1060 nm) eme ihe n'ahịa. Dịka ihe semiconductor nke ọgbọ nke atọ mgbe Si na GaAs gasịrị, GaN enweela nnukwu nchegbu na nyocha sayensị na ụlọ ọrụ n'ihi ihe onwunwe anụ ahụ na kemịkalụ ya dị mma. Site na mmepe nke ngwaọrụ optoelectronic nke GAN na mgbalị nke ndị nchọpụta, diode na-ewepụta ìhè na laser na-ewepụta n'akụkụ GAN abụrụla ihe mmepụta ihe.