Qhov txawv ntawm Semiconductor Lasers thiab Fiber Lasers

Qhov sib txawv tseem ceeb ntawmSemiconductor LasersthiabFiber Lasersyog cov khoom siv dielectric siv los tawm lub teeb laser. Qhov nce nruab nrab siv hauv semiconductor lasers yog cov khoom siv semiconductor, feem ntau yog gallium arsenide, thiab lwm yam. Qhov nce nruab nrab siv hauv fiber ntau lasers yog optical fiber. Ob lub lasers kuj ua haujlwm sib txawv. Semiconductor lasers tuaj yeem ncaj qha ua tiav electro-optical conversion, uas yog, ncaj qha txhawb cov khoom siv semiconductor kom emit laser teeb los ntawm tam sim no. Txawm li cas los xij, fiber ntau lasers tsis tuaj yeem ua tiav electro-optical conversion. Lawv xav tau kev siv lub teeb (feem ntau yog los ntawm lub laser diode) txhawm rau txhawm rau nce qhov nruab nrab kom ua tiav qhov kev hloov kho qhov muag-rau-kho qhov muag. Nyob rau hauv cov nqe lus ntawm tshav kub dissipation, fiber ntau lasers qhia qhov zoo. Feem ntau hais lus, fiber ntau lasers tsuas yog xav tau cua txias, uas txo lawv txoj haujlwm thiab cov nqi kho mob. Tab sis txawm hais tias nws yog optical fiber lossis solid-state laser, lawv cov thev naus laus zis tseem ceeb los ntawm kev txhim kho ntawm semiconductor laser. Yog li ntawd, kev nkag siab txog lub hauv paus ntsiab lus ntawm kev ua haujlwm thiab kev ua haujlwm ntawm semiconductor lasers yog qhov tseem ceeb rau kev nkag siab txog kev txhim kho tag nrho cov tshuab laser.

Hauv qab no yog kev taw qhia txog qhov sib txawv ntawm semiconductor lasers thiab fiber ntau lasers.

1. Cov khoom siv dielectric sib txawv. Qhov sib txawv ntawm fiber ntau lasers thiab semiconductor lasers yog tias lawv siv cov khoom sib txawv dielectric rau emitting lasers. Qhov nce nruab nrab siv los ntawm fiber ntau lasers yog optical fiber, thiab qhov nce nruab nrab siv los ntawm semiconductor lasers yog semiconductor cov ntaub ntawv, feem ntau gallium arsenide, indium gallium arsenide, thiab lwm yam.

2. Txawv luminescence mechanisms. Lub luminescence mechanism ntawm semiconductor lasers: nws yog qhov kev hloov ntawm cov khoom ntawm cov conduction band thiab valence band los tsim photons. Vim nws yog ib tug semiconductor, hluav taws xob excitation yuav siv tau, uas yog ib tug ncaj electro-optical conversion. Optical fiber tsis tuaj yeem paub qhov kev hloov pauv ntawm hluav taws xob kho qhov muag ncaj qha, thiab yuav tsum siv lub teeb los txhawm rau nce qhov nruab nrab (feem ntau pumped nrog lub laser diode). Qhov nws paub yog lub teeb-rau-optical conversion.

3. Qhov kev ua haujlwm kub dissipation yog txawv. Fiber lasers muaj cua sov dissipation zoo thiab feem ntau yog cua txias. Semiconductor lasers raug cuam tshuam los ntawm qhov kub thiab txias. Thaum lub hwj chim siab, dej txias yuav tsum tau ua.

4. Cov yam ntxwv tseem ceeb Cov yam ntxwv tseem ceeb ntawm cov fiber ntau lasers yog qhov me me thiab yooj yim ntawm cov cuab yeej. Lub laser tso zis spectrum muaj ntau cov kab, zoo monochromaticity thiab dav tuning ntau yam. Thiab nws qhov kev ua tau zoo tsis muaj dab tsi cuam tshuam nrog cov kev taw qhia polarization ntawm lub teeb, thiab qhov sib txuas poob ntawm cov cuab yeej thiab cov khoom siv kho qhov muag yog me me. Lub conversion efficiency yog siab thiab lub laser pib yog tsawg. Lub fiber ntau geometry muaj qhov ntim tsawg heev thiab thaj chaw saum npoo, ntxiv rau lub laser thiab lub twj tso kua mis tuaj yeem ua tiav tag nrho hauv lub xeev ib hom. Semiconductor lasers yog ib qho yooj yim rau kev koom ua ke nrog lwm cov khoom siv semiconductor. Nws cov yam ntxwv yog tias nws tuaj yeem ncaj qha hluav taws xob hloov kho; Nws yog ib qho yooj yim kom paub optoelectronic kev koom ua ke nrog ntau yam khoom siv optoelectronic; nws yog qhov me me thiab lub teeb hauv qhov hnyav; nws muaj lub zog tsav qis thiab tam sim no; nws muaj kev ua haujlwm siab thiab ua haujlwm ntev; nws yog sib xws nrog semiconductor manufacturing technology; thiab nws tuaj yeem ua rau ntau qhov ntau.

5. Daim ntawv thov ntawm fiber ntau lasers yog tsuas yog siv nyob rau hauv laser fiber kev sib txuas lus, laser chaw ntev-ntev kev sib txuas lus, muaj shipbuilding, tsheb tsim, laser engraving, laser npav, laser txiav, luam ntawv rollers, hlau thiab tsis-hlau drilling, txiav thiab vuam. (brazing, quenching), cladding thiab sib sib zog nqus vuam), tub rog tiv thaiv thiab kev ruaj ntseg, cov khoom siv kho mob thiab cov khoom siv, cov khoom siv loj loj, ua lub twj tso kua mis rau lwm cov lasers, thiab lwm yam. Semiconductor lasers tau dav siv hauv laser ntau yam, lidar, laser kev sib txuas lus. , laser simulation riam phom, laser ceeb toom, laser kev taw qhia thiab taug qab, ignition thiab detonation, tsis siv neeg tswj, nrhiav kom tau cov twj paj nruag, thiab lwm yam.

Cov saum toj no yog qhov txawv ntawm semiconductor lasers thiab fiber ntau lasers. Zoo li ib txwm muaj zog-state thiab roj lasers, fiber ntau lasers kuj muaj peb yam tseem ceeb: twj tso kua mis, nce nruab nrab, thiab resonant kab noj hniav. Lub twj tso kua mis feem ntau siv lub zog hluav taws xob semiconductor laser, thiab qhov nce nruab nrab yog lub ntiaj teb tsis tshua muaj doped optical fiber lossis ib qho zoo tib yam nonlinear optical fiber. Cov kab noj hniav resonant tuaj yeem tsim los ntawm cov lus qhia kho qhov muag xws li fiber ntau gratings los tsim ntau cov kab noj hniav resonant kab noj hniav, los yog cov khoom siv sib txuas tuaj yeem siv los tsim ntau lub nplhaib zoo li resonators. resonant kab noj hniav. Lub twj tso kua mis lub teeb yog txuas rau hauv qhov nce fiber ntau los ntawm qhov tsim nyog kho qhov muag. Tom qab nqus cov twj tso kua mis lub teeb, qhov nce fiber ntau cov ntaub ntawv inversion los yog nonlinear nce thiab generates spontaneous emission. Lub generated spontaneous emission teeb undergoes excitation amplification thiab hom xaiv ntawm lub resonant kab noj hniav, thiab thaum kawg tsim ib tug ruaj khov laser tso zis.

Daim ntawv thov loj tshaj plaws ntawm semiconductor lasers yog raws li lub twj tso kua mis rau fiber ntau lasers thiab solid-state lasers. Thaum lub tshuab hluav taws xob semiconductor siv los ua fiber ntau laser twj tso kua mis, cov qauv ntawm lub twj tso kua mis tuaj yeem yooj yim yooj yim thiab lub twj tso kua mis lub zog tuaj yeem nce los ntawm kev ua kom lub zog ntawm lub zog. Raws li fiber ntau lasers thiab solid-state lasers muaj kev xav tau ntau dua rau cov zis hluav taws xob, cov kev xav tau siab dua kuj tau muab tso rau ntawm lub zog ntawm semiconductor twj tso kua mis.

Vim qhov kev txwv ntawm cov nqaj zoo, cov tsoos semiconductor lasers yog qhov nyuaj rau kev siv ncaj qha rau hlau txiav. Nyob rau hauv xyoo tas los no, nrog kev txhim kho ntawm semiconductor coupling technology thiab maj mam loj hlob ntawm cov nqaj tshiab combining thev naus laus zis, qee qhov fiber ntau tso tawm semiconductor lasers nrog ib kilowatt lossis qib siab dua tuaj yeem ua tau raws li qhov yuav tsum tau ua kom zoo rau kev txiav. Tsis tas li ntawd, vim muaj ntau haiv neeg ntawm semiconductor laser wavelengths, lub wavelength ntawm luv luv wavelength semiconductor lasers yog ze heev rau lub wavelength absorption siab tshaj plaws ntawm txhuas. Yog li ntawd, nyob rau hauv kev lag luam automotive, high-power semiconductor lasers yog heev haum rau vuam aluminium tsheb lub cev. Tam sim no, semiconductor lasers nrog laser tso zis powers ntawm 2KW thiab 6KW tau dav siv nyob rau hauv cov txheej txheem ntau lawm ntawm kev lag luam tsheb.

Nyob rau hauv lub tshav pob ntawm cov khoom siv ncaj qha, cov nqaj zoo ntawm semiconductor lasers yog qhov nyuaj rau tshaj li ntawm fiber ntau lasers. Txawm li cas los xij, semiconductor lasers yog qhov tsim nyog rau nyias phaj vuam thiab txiav daim ntawv thov. Txoj kev loj hlob ntawm high-power semiconductor lasers tau ua ntau yam kev siv tseem ceeb. Cov lasers no tau hloov ntau yam kev siv thev naus laus zis thiab coj peb ntau yam khoom tshiab.

Feem ntau hais lus, vim kev txhim kho txuas ntxiv ntawm thev naus laus zis, daim ntawv thov kev lag luam ntawm semiconductor lasers tau hloov tas li, thiab cov kev hloov no tseem tshwm sim. Feem ntau hais lus, semiconductor lasers tab tom txhim kho rau luv emission wavelengths thiab ntau dua emission powers hloov mus rau tam sim no kev lag luam xav tau.

Cov ntaub ntawv tiv tauj:

Yog tias koj muaj lus nug, thov hu rau peb. Txawm peb cov neeg muas zaub nyob qhov twg thiab peb cov kev xav tau yog dab tsi, peb yuav ua raws li peb lub hom phiaj los muab peb cov neeg siv khoom zoo, tus nqi qis, thiab kev pabcuam zoo tshaj plaws.