Kev piav qhia
Vertical Cavity Surface Emitting Laser (VCSEL) yog ib lub laser semiconductor uas nws lub laser emission kev taw qhia yog perpendicular mus rau lub PN hlws ris dav hlau thiab nws resonant kab noj hniav dav hlau yog parallel mus rau lub PN hlws ris dav hlau. Nws yog ib hom deg emitting laser. Lub teeb ntawm EEL ntug emitting laser yog tawm kab rov tav los ntawm ntug ntawm nti. Piv nrog rau EEL, VCSEL muaj cov txheej txheem kev lag luam ntau dua thiab cov lus teb sai dua, yog li nws tau hloov cov tsoos ntug emitting lasers hauv ntau thiab ntau daim ntawv thov.
VCSELs, los yog ntsug-kab noj hniav nto-emitting lasers, yog ib hom semiconductor laser diode uas emits lub teeb nyob rau hauv ib tug ntsug kev taw qhia perpendicular mus rau lub dav hlau ntawm lub nti. Lawv tau siv dav hauv ntau daim ntawv thov xws li kev sib txuas lus kho qhov muag, kev hnov lus, thiab khaws cov ntaub ntawv, thiab lwm yam. Txawm li cas los xij, ua ntej cov VCSELs no tuaj yeem siv rau hauv cov ntawv thov no, lawv yuav tsum muaj kev sim ntau los txiav txim siab lawv cov kev txwv thiab ua kom lawv ntseeg tau.
daim ntawv thov:
Nrog rau kev txhim kho optoelectronics thiab cov ntaub ntawv thev naus laus zis, tshwj xeeb tshaj yog tom qab kev txhim kho khoom siv thiab kev txhim kho cov txheej txheem, VCSEL tau ua tiav zoo hauv kev ua haujlwm thiab kev siv. Vim nws qhov zoo xws li qhov pib qis tam sim no, kev ua haujlwm ruaj khov wavelength, zoo beam zoo, thiab ib qho yooj yim ib-seem thiab ob-dimensional kev koom ua ke, VCSEL tau dav siv nyob rau hauv kev sib txuas lus kho qhov muag, laser qhia, optical cia, neeg siv khoom electronics thiab lwm yam teb.
Qauv:
Vertical Cavity Surface Emitting Laser (VCSEL) muaj cov qauv semiconductor nyuaj, tab sis nws cov qauv ntim yog feem ntau yooj yim dua. Tsis zoo li ntug-emitting laser diodes, EEL yuav tsum tau cleaved rau hauv cov tuav kom paub seb nws puas zoo los tsis, thaum VCSEL tuaj yeem ntes cov nti ua ntej ntim thiab tshuaj ntsuam cov khoom, txo cov nqi pheej hmoo ntawm cov khoom. Muaj peb txoj kev tshuaj xyuas hauv VCSEL cov txheej txheem tsim khoom, thiab tag nrho peb cov txheej txheem yuav tsum muaj cov khoom siv hluav taws xob tam sim no los ntsuas cov cuab yeej. Kev ntsuas ceev, hloov tau yooj yim thiab kev ntsuas siab yog qhov tseem ceeb los txo tus nqi ntawm kev sim.
VCSEL cov cuab yeej siv dav siv hauv 3D lub ntsej muag lees paub thiab ntsuas qhov deb. Thaum VCSEL arrays siv rau hauv TOF modules, tshwj xeeb tshaj yog dTOF systems xws li LiDAR, lub ncov lub zog, kev khiav hauj lwm tam sim no, kev khiav hauj lwm voltage, conversion efficiency, nyob ze-tsav thiab deb-field optical yam ntxwv ntawm VCSEL nyob rau hauv nqaim mem tes tej yam kev mob yog ib qho tseem ceeb heev rau chip lwm tus neeg. , ntim cov chaw muab kev pabcuam, module integrators, thiab lwm yam.
VCSEL thiab VCSEL arrays, suav nrog cov khoom siv hluav taws xob tseem ceeb ntawm cov txheej txheem laser diode, xws li laser diode rau pem hauv ntej voltage poob (VF), KinK point test / linearity test (dL / dI), pib tam sim no (lth), tso zis optical zog (Po) thiab nqes hav efficiency (Es).
Kev kuaj LIV yog ib txoj hauv kev yooj yim thiab yooj yim los txiav txim siab qhov tseem ceeb ntawm kev ua haujlwm ntawm VCSELs. Nws muab ob qho kev ntsuas nkhaus hauv ib daim duab. L / I nkhaus qhia qhov kev vam khom ntawm lub teeb ci ntawm lub laser ntawm kev khiav hauj lwm tam sim no thiab yog siv los txiav txim qhov chaw ua haujlwm thiab qhov pib tam sim no. Lub V / I nkhaus qhia qhov hluav taws xob siv rau lub laser raws li kev ua haujlwm ntawm kev ua haujlwm tam sim no. Los ntawm LIV (lub teeb siv-tam sim no-voltage) kev sim, feem ntau ntawm cov khoom hluav taws xob tsis zoo thiab cov khoom siv hluav taws xob zoo tshaj plaws ntawm VCSEL tuaj yeem soj ntsuam.
Qhov nqaim ntawm lub laser mem tes dav tso tawm los ntawm radar, qhov ntau dua qhov tseeb; qhov ntau dua qhov peak optical hwj chim, feem ntau mus txog 100 watts, qhov ntev ntawm qhov ntsuas qhov deb. Yog li ntawd, nws yog ib qho tseem ceeb rau kev kawm high-peak optical fais fab VCSEL chips nrog siab txhaj tam sim no. High-power lasers tsim hluav taws xob hnyav thaum siv los ntawm DC lossis dav pulses, thiab cov teebmeem tshwj xeeb ntawm laser tau cuam tshuam rau qhov kub thiab txias. Cov txiaj ntsig hauv qab DC lossis dav pulses tsis tuaj yeem cuam tshuam cov yam ntxwv ntawm lub cuab yeej. Yog li ntawd, txhawm rau ntsuas qhov kev ua tau zoo ntawm VCSEL cov cuab yeej hauv cov xwm txheej ua haujlwm tiag tiag, cov cuab yeej ntsuas nrog microsecond lossis txawm tias nanosecond tsav tsheb thiab kev ntsuas muaj peev xwm yuav tsum tau sim lawv, uas tsis tau ntsib los ntawm cov tsoos DC lossis cov ntsuas pulse dav.
Tsis muaj
1. Qhov ntsuas tam sim no: Qhov tsawg kawg nkaus tam sim no yuav tsum tau pib lasing.
2. Tso zis fais fab: Lub hwj chim ntawm lub laser beam tawm ntawm VCSEL.
3. Wavelength: Cov xim ntawm lub laser beam, uas txiav txim siab qhov zaus ntawm lub teeb tawm.
4. Spectral dav: Qhov ntau ntawm wavelengths emissions los ntawm VCSEL ntawm ib tug muab tso zis hwj chim.
5. Modulation bandwidth: Qhov ntau zaus uas VCSEL tuaj yeem hloov kho nws lub zog tso zis.
Kev sim
1. LI Curve: Qhov kev ntsuas no ntsuas qhov tam sim no thiab cov zis hluav taws xob ntawm VCSELs. Nws yog siv los txiav txim qhov pib tam sim no thiab ntsuas lub zog ua haujlwm ntawm VCSEL ntawm qib sib txawv.
2. Kev ntsuas Spectral: Ib lub spectrometer yog siv los ntsuas qhov spectral yam ntxwv ntawm VCSEL, nrog rau lub wavelength thiab spectral dav. Qhov kev sim no yog qhov tseem ceeb los txiav txim siab qhov sib haum ntawm VCSEL nrog rau lwm cov khoom siv kho qhov muag thiab cov tshuab.
3. Kev tsom xam ntawm qhov muag: Qhov kev ntsuam xyuas no ntsuas qhov zoo ntawm cov teeb liab kho qhov muag los ntawm kev txheeb xyuas lub waveform ntawm lub teeb liab. Nws yog siv los txiav txim qhov kev hloov pauv bandwidth thiab qhov yuam kev me ntsis ntawm VCSEL.
4. Kev ntsuam xyuas kev ntseeg tau: Cov kev ntsuam xyuas no yog siv los ntsuas qhov kev cia siab ntev ntev ntawm VCSELs nyob rau hauv ntau yam kev khiav hauj lwm xws li kub, av noo, thiab kev ntxhov siab. Qhov kev ntsuam xyuas kev ntseeg siab tshaj plaws yog qhov kev ntsuas kub hnyiab, qhov twg VCSEL raug rau kev laus kom nrawm rau simulate lub neej ntawm lub cuab yeej.
Nyob rau hauv xaus, VCSELs yog ib qho tseem ceeb semiconductor laser diodes uas yuav tsum tau ib tug series ntawm kev ntsuam xyuas los txiav txim lawv tsis thiab xyuas kom meej lawv kev cia siab. Cov kev ntsuas tseem ceeb tshaj plaws ntawm VCSELs suav nrog qhov pib tam sim no, tso zis hluav taws xob, wavelength, spectral dav, thiab modulation bandwidth, thaum qhov kev ntsuam xyuas tseem ceeb tshaj plaws suav nrog LI nkhaus ntsuas, ntsuas spectral, ntsuas qhov muag ntsuas, thiab kev ntsuas kev ntseeg tau. Cov kev ntsuam xyuas no ua kom ntseeg tau tias VCSELs ua tau raws li kev ua tau zoo thiab kev ntseeg tau ntawm cov ntawv thov sib txawv.
Brandnew tuaj yeem muab VCSEL hauv cov pob sib txawv:
TO pob: VCSEL laser diodes nyob rau hauv ib lub hermetically kaw TO tsev tso cai yooj yim tuav ntawm lub laser diode thiab tsim nyog rau kev khiav hauj lwm nyob rau hauv xav tau ib puag ncig tej yam kev mob. Ib qho ntxiv Z diode tiv thaiv lub laser diode los ntawm kev puas tsuaj vim electrostatic paug (ESD). VCSELs kuj raug hlawv-hauv kom stabilize lub lasers.
SMD Pob: VCSEL laser diodes yog tsim los rau saum npoo-mounted rau ntawm lub rooj tsavxwm luam tawm (PCB) lossis lwm lub tshuab hluav taws xob. SMD ntim tso cai rau kev sib koom ua ke yooj yim rau hauv cov tshuab hluav taws xob, ua rau lawv haum rau ntau yam kev siv. BrandNew tuaj yeem muab tau xws li 7060, 3535 SMD pob.
VCSEL DIE: Kuj BrandNew tuaj yeem muab VCSEL tuag rau cov neeg siv. wavelength: 638nm, 808nm, 850nm, 940nm; Hwj chim: los ntawm mW mus rau kW qib
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