Dab tsi yog laser modules siv rau lub zos?

Kev kuaj lub teeb pom kev zoo (Lidar) tau tawm los ua cov txheej txheem cornerouse, rob ntawm lawv ib puag ncig, thiab cov nroog ntse los ua kom pom zoo tswj hwm cov txheej txheem. Ua yeeb yam raws li "qhov muag" ntawm cov kab ke no, cov tsev teev tsim muaj siab lub sij hawm ntawm kev ntsuas lub sij hawm nws yuav siv rau lub teeb pom kev rov qab los ntawm cov khoom.

Ntawm lub plawv ntawm txhua lub hauar cov transmitter nws lub cav core: TusLaser diode moduuleCov. Qhov tseem ceeb no tsis tseem ceeb no tsis yog ib qho teeb pom kev; Nws cov kev ua tau zoo tsis ncaj qha yuam cov kab ke ncaj qha rau cov kab ke, qhov tseeb, nws tus nqi, nws tus nqi thiab kev muaj peev xwm kev yuav txais. Kab lus no muab cov kev tsom xam ntawm cov thawj Laser Module ua haujlwm hauv cov khoom siv niaj hnub, sib piv lawv tus cwj pwm rau kev xaiv raws li ntawv thov.

Lidar Kev Ua Haujlwm Lub Tebchaws thiab Cov Xav Tau Rau Laser Modules

Feem ntau cov lag luam Lidar system ua haujlwm ntawmLub sij hawm - ntawm - davhlau (tof)Lub hauv paus ntsiab lus, qhov twg ib tug luv laser mem tes yog emitted, thiab nws round - Lub sij hawm mus ncig yog ntsuas mus los ntsuas qhov deb. Ib qho kev xaiv, ntau txoj kev nyuaj yogZaus -}}} modulated nruam nthwv dej (FMCW), uas siv cov kev sib koom ua ke, zaus {{modulated nqaj Laser los ntsuas ob qho kev ncua deb thiab nrawm ib txhij dhau ntawm cov nyhuv dopplerously.

Lub laser module kev ua tau zoo yog qhov tseem ceeb. Qhov tseem ceeb yuav tsum muaj xws li:

Wavelength:Lub vas nthiv daj ntseg yog905 nmthiab1550 nm. 905 NM lasers pheej yig dua thiab muaj kev tso tawm ntau dua, tab sis yuav tsum muaj ntau dua cov khoom siv vitreous zoo li, tab sis yuav tsum muaj ntau dua cov khoom siv roj ntsha thiab muaj zog dua.

Peak Zog:Lub zog siab tshaj plaws ntawm cov mem tes. Ntau lub zog loj tshaj plaws ua kom tau txais kev ntsuas ntev dua los ntawm kev ua kom muaj teeb meem txaus {- suab nrov piv rau lub teeb liab rov qab.

Mem Tes Dav:Lub sijhawm ntawm txhua tus mem tes laser. Lub txiv caj dab nqaim ua kom muaj kev daws teeb meem ntau dua, tso cai rau cov kab ke kom paub qhov txawv ntawm ob qho khoom sib raug zoo.

Mem Tes Qhov Prefetition zaus (PRF):Tus nqi ntawm cov pulses raug tshem tawm (piv txwv li, 100 khz mus rau ntau lub MHz). Ib qho siab dua prf tsim cov huab cua kub thiab cov nqi siab dua tab sis yuav tsum tau txais tus txais nyiaj sai.

Beam divergence:Qhov kev ntsuas ntawm ntau npaum li cas lub laser nqaj nthuav tawm mus deb. Ib qho qis divergence yog qhov tseem ceeb rau kev ua tiav siab daws teeb meem thiab muaj peev xwm paub txog cov ntsiab lus zoo ntawm ntev ntev.

Efficiency thiab thermal tswj:Kev cuam tshuam laser kev cuam tshuam ntau tag nrho cov kev siv hluav taws xob tag nrho thiab ntau tiam neeg. Kev tswj hwm thermal muaj txiaj ntsig yog qhov tseem ceeb rau kev ntseeg tau thiab tiv thaiv kev ua haujlwm drift.

Nqi:Ib qho kev txiav txim siab rau cov ntsuas thiab ua lag luam, tshwj xeeb tshaj yog hauv cov ntawv thov hauv tsheb.

Hauv -} }່flical tsom xam ntawm mainstream laser module thev naus laus zis

1. Ntug -} emitting laser (EEL)

Tshuab Isemis:Ib Tsoos Seev Seev Shamiconductor laser uas lub teeb ci ntsa iab yog emitted los ntawm ntug ntawm lub nti. Lawv feem ntau ntim ib leeg zuj zus thiab xav tau kev ua si, ua haujlwm sib txawv ntawm cov optication optics.

Cov yam ntxwv:

Qhov Zoo:High Peak Lub zog tawm, paub tab thiab muaj pov thawj tsim qauv, tus nqi qis dua.

Qhov tsis zoo:Cov khoom ua tsis tau zoo nqaj zoo nrog cov asrerent astigmatism (loj dua ntim khoom), nyuaj thiab ntau dua thiab muaj kev sib txuas lus loj.

Daim Ntawv Thov:Cov haujlwm ua haujlwm ntawm lub tshuab ua ntej dhau los, feem ntau siv nyob rau hauv kev kho tshuab hloov thiab hybrid khoom {}}} lub xeev cov architectures.

2. Ntsug {{{{{1} kab noj hniav deg - emitting laser (vcething)

Tshuab Isemis:Lub teeb yog emitted perpendicularly los ntawm sab saum toj saum npoo ntawm lub semiconductor nti. Qhov no tso cai rau kev sim ntawm cov qib wafer thiab ntuj tsim ntawm ib - ntev thiab ob {{2} seem ars.

Cov yam ntxwv:

Qhov Zoo:Superior bajs (symmular, spracular Lub comdow ntawmNtau - lovws (mj)Cov thev naus laus zis, qhov twg ntau txheej uas nquag muaj pawg, tau ua kom muaj zog nce lawv lub zog hluav taws xob rau cov neeg sib tw.

Qhov tsis zoo:Keeb kwm qis lub zog hluav taws xob piv rau eels, txawm hais tias qhov sib txawv no tau kaw los ntawm mj - vcsels.

Daim Ntawv Thov:Thaum pib siv hauv cov khoom siv hluav taws xob (piv txwv li, lub ntsej muag ntsej muag ntsej muag. Mj- vcsel arrays yog tam sim no txoj kev xaiv tseem ceeb rau cov hom hauv phau ntawv no, tshwj xeebLub sijhawm ncaj qha - ntawm - davhlau (DTOF)thiabNyem cov hau, qhov twg loj, hnav tsoos tsho zoo li yog qhov yuav tsum tau ua.

3. Fiber ntau laser

Tshuab Isemis:Siv qhov tsawg kawg - lub ntiaj teb-}}}}}}} optical fiber ntau dua li qhov tau txais nruab nrab. Lawv yog cov tshuab uas feem ntau koom nrog noob lasers thiab amplifiers.

Cov yam ntxwv:

Qhov Zoo:Tshwj xeeb nqaj ua tau zoo (diffraction - muaj ntau lub zog, thiab yog thawj lub zog, thiab yog thawj qhov kev pom zoo rau ntev- muaj kev tshawb nrhiav ntev.

Qhov tsis zoo:Qhov loj heev, loj loj thiab daim ntawv ua kom sib dhos, ua ke sib dhos, thiab ntau lub zog siv hluav taws xob piv rau semiconductor dodemes diodes.

Daim Ntawv Thov:Feem ntau siv nyob rau hauv kev ua haujlwm - tseem ceeb tshaj plaws thiab kev soj ntsuam cov tub rog, thiab muaj kev sib tw ua ke, nqaim} kab ntawv.

Thev naus laus zis sib piv thiab yav tom ntej sib

Sib piv cov lus xaus rooj:

Yav Tom Ntej:

Ascendancy ntawm VCSELS:Multi -} munction vcel technology yog satorifying tov rau yav tom ntej no {2} Tus nqi sib xyaw ua ke, thiab yav tom ntej nqi {{tsis muaj peev xwm.

Nthwv dej tsiv teb tsaws chaw:Kev tshawb fawb ntxiv thiab kev loj hlob mus rau 1550 nm semiconductor lasers (xws li ingaas {}} -- Performance lidar ntxiv mus tau.

Nti -} theem kev koom ua ke thiab silicon photonics:Cov lus dag yav tom ntej nyob rau hauv kev sib txuam ua ke lub laser ntawm cov peev txheej, cov khoom siv hluav taws xob, thiab kho kho kho qhov muag (zoo li nqaj steerters) mus rau ib nti lossis pob. Silicon photonics (siph) cog lus kom pab ultra -} {{5} {main daws teeb meem.

Kev nce qib ntawm FMCW Lidar:Raws li FMCW Technology Matures, qhov kev thov kom sib txuam, nqaim} kab ke, tsav los ntawm nws txoj kev xav tau thiab tiv thaiv kev tshav ntuj.

Xaiv cov laser module rau koj liidar system

Xaiv cov thev naus laus zis yog lub tshuab {{}} kev txiav txim qib qib raws li daim ntawv thov:

TXHAIS TAU YUAV TSUM TAU LOS NTAWM DAIM NTAWV THOV:

Automotive (series ntau lawm):Piv txwvTus nqi, muaj kev cia siab, compact loj, thiab tsis muaj zog siv hluav taws xobTxhawm rau kom tau raws li txoj hlua khi siv hluav taws xob ntxiv (AEC - q102).Vcss arraysyog tus thawj coj.

Robotics / Agvs:Yuav tsum taunruab nrab - kev ua tau zoo, muaj kev ntseeg siab, thiab qis {- tus nqi nruab nrabCov. Ob yam905nm eelsthiabVcselsyog cov kev xaiv tsim nyog.

Advanced tsav - nyiaj pab system (Adas):NtasKev ua tau zoo thiab tus nqiCov. Tam sim no dominated los ntawm905 nmcov peev txheej, nrog1550 nmraug tshawb nrhiav rau cov tsheb uas hwm.

Kev Ntsuam Xyuas & Muaj:Xav tauMAXUSION ACTORATION, TAWM NTAU, THIAB HIGHAL. 1550 nm fiber ntau lasersyog tus qauv ntawm no, txawm hais tias lawv tus nqi.

Kev Txiav Txim Siab Tseem Ceeb:

Kev ua tau zoo ua lag luam - Offs:Txhim kho cov lag luam - tawm ntawmNtau tshaj plaws, Taw tes huab daws teeb meem, Tus ncej, thiabteb ntawm saib.

Thermal thiab fais fab nyiaj txiag:Xyuas kom meej lub kaw lus tus qauv tsim tuaj yeem lis cov qauv hluav taws xob kev siv hluav taws xob thiab tsis sib xws rau cov cua sov.

Kev cai ua raws cai:Kev tsim qauv yuav tsum ua raws li qhov muag -} tus qauv kev nyab xeeb (iec 60825-1).

Cov saw hlau:Txheeb xyuas tus txiv neej loj hlob, tawv nqaij, thiab ntev ntawm cov khoom muag roj laser.

Tag

Lub laser Diode module yog qhov tseem ceeb ntawm kev txiav txim siab ntawm Lidar system lub peev xwm. Cov toj roob hauv pes tau hloov zuj zus los ntawm ib qho kev siv thev naus laus zis nkaus xwb (EEL) rau ntau hom Ecosystem uasEels, vcsels, thiab cov neeg lasers fiber ntauTxhua tus pab cov kev ua tau zoo thiab ntu khw. Cov kev lag luam kev lag luam ntshiab yog txav mus rau kev koom ua ke ntau dua, txo tus nqi, thiab txhim kho kev ua tau zoo, tsav feem ntau ntawm kev nrhav los ntawm kev nrhav hauvVcsel arraythiabsilicon partonicsthev naus laus zis. Raws li cov laser cov cav txuas ntxiv mus ua ntej, lawv yuav qhib cov kev thov nyiaj tag nrho, thiab cov ntawv thov kev siv tau, thiab muaj kev txhawb nqa rau cov kev nkag siab tshiab ntawm autonomous.

Cov ntaub ntawv tiv toj:

Yog tias koj muaj tswv yim, xav tham nrog peb. Tsis hais qhov twg peb cov neeg yuav khoom yog thiab peb yuav tsum ua raws li peb lub hom phiaj los muab peb cov neeg siv khoom kom muaj txiaj ntsig zoo, tus nqi zoo tshaj plaws, thiab kev pabcuam zoo tshaj plaws.