160mW 1310nm Siab Hwjchim Nqaim Linewidth DFB Diode Laser Chip
Nta
- Single Longitudinal Hom (DFB qauv): ruaj khov wavelength emission nrog lub suab qis
- Compact Chip Design: Zoo tagnrho rau kev koom ua ke rau hauv TO- tuaj yeem, npauj npaim, lossis ntim kev cai
- Kev ntseeg siab: Kev ua tau zoo ua pov thawj rau kev ua haujlwm ntev - mus tas li
- Raws li RoHS
- Ua haujlwm kub: 0 ~ 75 degree
Daim ntawv thov:
- Microwave Photonics
- Optical Test thiab Instrumentation
- FMCW LIDAR
- Optical Sensing
Narrow Linewidth yog dab tsi?
Cov lus nug zoo- qhov no tau txais txoj cai rau qhov kev ntsuas tseem ceeb ntawm DFB chips! Yooj yim muab tso, Narrow Linewidth txhais tau hais tias lub laser emits ib tug ntshiab "xim" ntawm lub teeb, nrog ib tug ultra-nruj ntau yam ntawm wavelengths- tsis muaj ntxiv stray signals ua rau cuam tshuam.
Txhawm rau ua kom pom tseeb dua, kuv yuav ua rau peb ntu: nws yog dab tsi, vim li cas nws tseem ceeb, thiab nws qhov tiag - ntiaj teb tus nqi-tag nrho khi rau 1310nm DFB nti cov ntaub ntawv siv tseem ceeb.
1. Ua ntej: Dab tsi yog qhov nqaim Linewidth?
Xav txog lub teeb laser ua "xim"- sib txawv wavelengths sib txawv xim (1310nm, piv txwv li, nyob ze -infrared, pom ntawm qhov muag liab qab).
Linewidth: Qhov no yog qhov ntau ntawm wavelengths hauv laser beam. Piv txwv li, ib lub laser nrog 10nm linewidth, piv txwv li, yuav tawm lub teeb nyob nruab nrab ntawm 1310nm, tab sis kuj suav nrog stray wavelengths ntawm 1305nm txog 1315nm.
Narrow Linewidth: Qhov no compresses qhov wavelength ntau mus rau ib qho me me, feem ntau ntsuas hauv kHz (kilohertz) lossis MHz (megahertz) (rau cov ntsiab lus: 1nm ≈ 120GHz-nqaim linewidth shrinks uas 1nm ntau los ntawm ntau pua txhiab zaus).Rau ib txoj kab nqaim tsuas yog 130, FB. ntshiab 1310nm lub teeb-tsis muaj "suab nrov" wavelengths ntxiv.
2. Vim li cas ho tsis nqaim Linewidth tseem ceeb rau koj daim ntawv thov?
Qhov no cuam tshuam ncaj qha rau 1310nm DFB nti cov ntsiab lus siv (xws li ntev - kev sib txuas lus fiber ntau lossis kev paub tseeb) los ntawm kev daws peb qhov mob tseem ceeb:
Tiv thaiv "lub teeb liab chaos" nyob rau hauv ntev - kis tau tus mob nyob rau hauv fiber ntau optics, dav -linewidth lasers raug kev txom nyem los ntawm "dispersion"- sib txawv wavelengths mus txawv tebchaws nyob rau hauv fiber. Qhov no blurs los yog overlaps signals tom qab ntev kev deb. Nqaim linewidth lasers txo qhov tawg, ua kom 1310nm cov teeb liab pom tseeb txawm tias dhau ntau pua mais- qhov tseem ceeb rau kev tsim ntev -haul telecom networks.
Kev lees paub qhov tseeb hauv qhov tseeb sensingRau cov ntawv thov xws li lidar lossis roj kuaj pom, cov tshuab tso siab rau cov hloov pauv me me los ntsuas qhov deb lossis txheeb xyuas cov pa roj. Ib txoj kab dav dav ntxiv suab nrov, ua rau kev nyeem tsis raug (piv txwv li, ntsuas lub hom phiaj qhov deb). Cov kab dav dav ua rau lub teeb liab "huv," kom ntseeg tau tias kev ntsuas tau meej thiab txhim khu kev qha.
Txo kev cuam tshuam hauv ntau-channel systemsIn cov khoom siv nrog ntau lub teeb liab channel (xws li, telecom iav kis tau ntau cov ntaub ntawv ntws), dav -linewidth laser "stray light" tuaj yeem xau mus rau lwm cov channel thiab cuam tshuam kev ua haujlwm. Cov kab dav dav tshem tawm cov suab nrov ntxiv no, cia 1310nm nti ua haujlwm zoo nrog lwm cov khoom.
3. Cov kab hauv qab: Cov kab dav dav yog "Lub Plawv Ua Haujlwm" Ntawm 1310nm DFB Chip
Rau ib tus neeg siv 1310nm wavelengths, xaiv qhov nqaim linewidth DFB nti txhais tau tias xaiv cov cim ruaj khov dua, ntsuas qhov tseeb dua, thiab kev ua haujlwm ruaj khov dua. Nws tsis yog ib qho kev qhia tshwj xeeb xwb - nws yog vim li cas koj qhov project ua tau raws li nws cov hom phiaj.
Dab tsi yog DFB Diode Laser Chip?
DFB Diode Laser Chip (Distributed Feedback Diode Laser Chip) yog ib qho me me, siab -kev ua haujlwm semiconductor ntaus ntawv uas tsim lub teeb laser nrog tshwj xeeb precision-xav tias nws yog "lub cav" tom qab ntau lub tshuab kho qhov muag siab heev.
Cia peb rhuav nws yooj yim:
Nws ua haujlwm li cas: Tsis zoo li cov lasers yooj yim uas siv daim iav kom thaws lub teeb thiab ua kom nrov nrov, DFB chips muaj ib qho ua tau -hauv "grating"- ib qho me me, cov qauv ntu ntu uas ua rau hauv cov khoom siv semiconductor (xws li tus kav microscopic). Qhov no grating ua raws li "filter" thiab "feedback mechanism," xaiv ib lub wavelength ntawm lub teeb kom amplify thaum suppressing lwm tus. Qhov no yog vim li cas DFB lasers nto moo rau lawvnqaim linewidth(super- ntshiab, ib zaug - wavelength output) thiab stability.
Cov yam ntxwv tseem ceeb: Ua tsaug rau qhov grating, lawv tsim lub teeb laser uas yog:
Ultra-stable (tsawg kawg wavelength drift, txawm tias qhov kub thiab txias hloov los yog lub zog hloov pauv)
Cov ntshiab heev (nqaim linewidth, raws li peb tau tham ua ntej)
Tunable (ntau tus tuaj yeem kho lawv cov zis wavelength me ntsis rau qhov sib txuam rau cov ntawv thov tshwj xeeb).
Qhov twg nws siv: Koj yuav pom cov chips no hauv cov thev naus laus zis tseem ceeb xws li ntev -haul fiber optic kev sib txuas lus (ua kom cov ntaub ntawv teeb liab ntse tshaj ntau txhiab km), kev kuaj mob (precise spectroscopy), ib puag ncig sensing (nrhiav cov kab gases), thiab cov tshuab laser siab heev.
