Nhọrọ nke ezigbo isi iyi laser: ihu ikuku semiconductor laser Nkebi nke mbụ

Nhọrọ nke ezigboisi iyi laser: ihu emission semiconductor laser
1. Okwu mmalite
Semiconductor laseribe na-ekewa n'ime onu emitting laser ibe (EEL) na vetikal cavity elu emitting laser ibe (VCSEL) dị ka dị iche iche n'ichepụta usoro nke resonators, na ha kpọmkwem structural iche iche na-egosi na Figure 1. Tụnyere vetikal oghere elu emitting laser, onu. mmepe teknụzụ laser nke semiconductor na-eto eto, yana ogologo ogologo ogologo ogologo, dị eluelectro-opticalntughari arụmọrụ, nnukwu ike na uru ndị ọzọ, dị nnọọ mma maka nhazi laser, nkwurịta okwu anya na mpaghara ndị ọzọ. Ka ọ dị ugbu a, laser semiconductor na-eku ume bụ akụkụ dị mkpa nke ụlọ ọrụ optoelectronics, ngwa ha ekpuchiwo ụlọ ọrụ, nkwukọrịta, sayensị, ndị ahịa, ndị agha na ikuku. Site na mmepe na ọganihu nke nkà na ụzụ, ike, ntụkwasị obi na ike ntụgharị ike nke lasers semiconductor lasers na-eme ka ọ dịkwuo mma, na atụmanya ngwa ha na-abawanye ụba.
Na-esote, m ga-eduga gị ka ị nwekwuo ekele maka ịma mma pụrụ iche nke akụkụ-emittingsemiconductor lasers.

Ọgụgụ 1 (n'aka ekpe) akụkụ na-ebupụta semiconductor laser na (n'aka nri) oghere elu kwụ ọtọ na-ebupụta eserese ihe owuwu laser.

2. Ụkpụrụ na-arụ ọrụ nke ihu ikuku semiconductorlaser
Enwere ike kewaa ihe owuwu nke oghere semiconductor laser n'ime akụkụ atọ ndị a: mpaghara semiconductor na-arụ ọrụ, isi iyi mgbapụta na resonator ngwa anya. Dị iche na resonators nke vetikal oghere elu-emitting lasers (nke mejupụtara nke elu na ala Bragg mirrors), ndị resonators na onu-emitting semiconductor laser ngwaọrụ bụ tumadi mejupụtara ngwa anya film n'akụkụ abụọ. The-ahụkarị EEL ngwaọrụ Ọdịdị na resonator Ọdịdị na-e gosiri na Figure 2. The photon na nsọtụ-emission semiconductor laser ngwaọrụ na-amụba site mode nhọrọ na resonator, na laser na-guzobere na ntụziaka yiri nke mkpụrụ n'elu. Ngwa laser semiconductor Edge-emitting nwere ogologo ogologo ogologo ọrụ dị iche iche ma dabara maka ọtụtụ ngwa bara uru, yabụ na ha ghọrọ otu n'ime isi mmalite laser kachasị mma.

Ntụle nleba anya arụmọrụ nke laser semiconductor lasers na-adabakwa na lasers semiconductor ndị ọzọ, gụnyere: (1) laser lasing wavelength; (2) Threshold current Ith, ya bụ, nke ugbu a nke laser diode na-amalite ịmepụta oscillation laser; (3) Iop na-arụ ọrụ ugbu a, ya bụ, ịkwọ ụgbọala ugbu a mgbe diode laser ruru ike mmepụta egosipụtara, a na-etinye paramita a na imewe na mgbanwe nke sekit mbanye laser; (4) Mkpọda arụmọrụ; (5) Akụkụ dị iche iche kwụ ọtọ θ⊥; (6) Akuku divergence kwụ ọtọ θ∥; (7) Nyochaa Im dị ugbu a, ya bụ, nha nke mgbawa laser semiconductor dị ugbu a na ike nrụpụta ewepụtara.

3. Ọganihu nyocha nke GaAs na GaN dabeere na nsọtụ emitting semiconductor lasers
Laser semiconductor dabere na ihe GaAs semiconductor bụ otu n'ime teknụzụ laser semiconductor tozuru oke. Ugbu a, GAAS dabeere na nso-infrared band (760-1060 nm) ọnụ-emitting semiconductor lasers ejirila ahịa. Dị ka ihe ọmụmụ semiconductor ọgbọ nke atọ mgbe Si na GaAs gasịrị, GaN nwere nchegbu zuru oke na nyocha sayensị na ụlọ ọrụ n'ihi ọmarịcha anụ ahụ na kemịkal ya. Site na mmepe nke ngwaọrụ optoelectronic dabere na GAN na mbọ ndị nyocha, diodes na-enwu ọkụ nke GAN na-emepe emepe emepeela.