Yuav Ua Li Cas Hloov Ib Lub Laser Diode Rau Hauv Ib Lub Taub Hau Semiconductor Laser

Hloov cov laser diodes rau hauv tunable semiconductor lasers ho txhim kho qhov raug thiab ruaj khov ntawm kev ntsuas tshuab los ntawm kev xaiv wavelength thiab tswj. Qhov no yog ib qho tseem ceeb tshwj xeeb rau cov ntawv siv high-precision xws li spectroscopic tsom xam, precision ntsuas thiab kev tshawb fawb tshawb fawb.

Laser Diodes
Laser diodes yog tsim tau zoo subcomponents nyob rau hauv ntau yam khoom siv, xws li laser pointers, barcode scanners los yog CD / DVD / Blu-duab tshav drives. Lawv txoj kev vam meej yog los ntawm lawv cov compactness, yooj yim ntawm kev khiav hauj lwm, siab conversion efficiency thiab siab nqi-kev ua tau zoo. Txawm li cas los xij, lub emission spectrum ntawm liab qab laser diodes yog dav thiab lasing wavelength tsis zoo txhais.

Feem ntau, ob lub ntsej muag kawg ntawm lub semiconductor laser raj tsim cov kab noj hniav resonant thiab txiav txim siab (longitudinal) lasing hom. Qhov dav nce nkhaus ntawm semiconductor txhawb ntau hom ib txhij, txhua qhov sib txawv. Txawm tias diodes nrog ib hom longitudinal tuaj yeem pom hom hopping thiab spectrally unstable tso zis kab teeb ntawm me me hloov nyob rau hauv nti kub los yog tsav tam sim no.

Tunable Semiconductor Lasers

Tunable ib zaus semiconductor lasers muaj ib lub laser diode thiab ib zaus xaiv module, xws li grating, rau laser zaus xaiv thiab tuning. Peb tuaj yeem muab wavelengths los ntawm 190 nm mus rau 4000 nm, nrog rau txoj kab nqaim thiab tunability - mus txog 120 nm hom-hop-free tunability hauv qee lub tshuab. Cov lasers no tuaj yeem ua kom nrov nrog cov amplifiers standalone lossis kev sib xyaw ua ke hauv kev ua tiav cov tswv oscillator fais fab amplifiers (MOPAs) txog li 4 W. Feem ntau cov tshuab laser amplifier siv tapered amplifiers. Qhov dav dav spectral yuav ua tiav nrog zaus-ob npaug ntawm lasers - los ntawm 190 nm mus rau 680 nm, nrog lub hwj chim mus txog 1 W. Cov yam ntxwv tseem ceeb tshaj plaws ntawm tag nrho cov tshuab laser no yog lub suab qis (tsawg RIN suab nrov thiab nqaim linewidth) thiab qis drift. Cov yam ntxwv zoo heev no nyob ntawm qhov zoo heev laser tsav circuits. Txhawm rau ua kom muaj kev ruaj ntseg ntawm laser ntau dua, cov kab dav dav tuaj yeem nqaim mus rau 1 Hz los ntawm kev siv ntau hom laser zaus-locking modules, uas tuaj yeem tswj tau los ntawm kev yooj yim digital circuits.

Hom Xaiv
Los ntawm kev qhia cov lus xaiv xaiv zaus rau hauv cov kab noj hniav laser, cov khoom siv hluav taws xob zoo tshaj plaws xws li nqaim emission linewidth, loj coherence ntev, meej wavelength xaiv thiab tuning lossis stabilization ntawm emission zaus yuav ua tiav. JTBYShield muaj ob tunable ib zaus semiconductor lasers. Ob leeg siv cov qauv grating los xaiv thiab tswj cov emission zaus. Ib qho yog grating stabilized sab nraud kab noj hniav semiconductor laser (ECDL).

Nws muaj lub ntsej muag kho qhov muag mounted nyob rau hauv pem hauv ntej ntawm lub laser diode raws li thawj resonant kab noj hniav lub ntsej muag, thaum lub thib ob resonant kab noj hniav lub ntsej muag yog tom qab ntawm lub diode, lub laser raj thiab cov lus tawm tswv yim tsim "sab nraud resonant kab noj hniav".

Schematic daim duab ntawm sab nraud kab noj hniav semiconductor laser

Lwm txoj hauv kev yog laser diodes nrog gratings ua rau hauv semiconductor nws tus kheej: faib tawm tswv yim (DFB) thiab faib Bragg reflector (DBR) semiconductor laser raj.

Lub grating lim, lub semiconductor nce nkhaus, sab hauv semiconductor laser raj hom, thiab (yog tias tsim nyog) hom sab nraud kab noj hniav txiav txim siab hom lasing. Precise kub thiab tswj tam sim no thiab kev sib txuam ntawm cov khoom tsim nyog rau kev ua haujlwm ruaj khov ib hom.

Hom xaiv nyob rau hauv sab nraud kab noj hniav diode lasers

Schematic daim duab ntawm sab nraud kab noj hniav semiconductor laser

DBR Laser Diode Schematic

Wavelength Tuning

DFB thiab DBR diodes tuaj yeem ua tau qhov ntev los ntawm kev kho cov semiconductor laser raj tam sim no thiab / lossis kub. Lawv tuaj yeem hloov kho los ntawm 1-2 nm yam tsis muaj hom hopping.

Txhawm rau hloov lub wavelength ntawm ECDL, cov lus teb spectral ntawm hom-xaiv ntaus ntawv yuav tsum tau hloov, piv txwv li los ntawm kev hloov lub kaum sab xis ntawm qhov xwm txheej ntawm lub grating. Ua haujlwm nyob rau hauv hom uas tag nrho qhov nce siab tshaj plaws, qhov no ua rau lub laser dhia mus rau lwm hom longitudinal thiab emit ntawm lub wavelength tshiab.

Kev kho kom zoo ntawm lub lasing wavelength yog ua tiav los ntawm kev hloov qhov ntev ntawm cov kab noj hniav sab nraud, uas hloov cov hom longitudinal tam sim no txhawb los ntawm ib hom kev ua haujlwm ntawm lub laser.

Mode-hop-free tuning

DL Pro Laser

Qhov loj hom-hop-free tuning range yog txiav txim siab los ntawm kev sib koom ua ke ntawm ntau yam. Peb DL pro lasers ua tiav dav zaus hopping dawb tuning los ntawm ib txhij hloov lub grating lub kaum sab xis, sab nraud kab noj hniav ntev thiab semiconductor laser raj tam sim no kom ua tau zoo synchronization. Hom-hop-free tuning ntawm DL pro feem ntau yog 20-50 GHz, nrog cov qauv rugged thiab quasi-monomeric kom tau txais kev ua haujlwm ruaj khov.

Daim ntawv thov teb
1. Daim ntawv thov hauv kev sib txuas lus
Tunable semiconductor lasers ua lub luag haujlwm tseem ceeb hauv kev sib txuas lus kho qhov muag, tshwj xeeb tshaj yog nyob rau hauv wavelength division multiplexing (WDM) thiab ntom wavelength division multiplexing (DWDM) systems. Nws lub peev xwm wavelength tuning ua rau nws hloov tau yooj yim rau cov kev xav tau ntawm cov channel sib txawv, txhim kho kev sib kis tau thiab kev ua haujlwm ntawm lub network.
2. Daim ntawv thov hauv kev kho mob
Hauv kev kho mob, tunable semiconductor lasers yog dav siv nyob rau hauv high-precision phais, laser kho, thiab biomedical imaging. Nws txoj kev tswj lub wavelength meej thiab kev ruaj ntseg siab ua rau nws yog qhov kev xaiv zoo tshaj plaws rau kev siv xws li kev phais mob ophthalmic, kho dermatology, thiab kev kho mob qog noj ntshav.
3. Daim ntawv thov hauv kev tshawb fawb
Tunable semiconductor lasers muaj cov ntawv thov tseem ceeb hauv kev tshawb fawb, xws li kev tsom xam spectral, ntsuas qhov tseeb, thiab kev tshawb fawb quantum optics. Nws txoj kab dav dav thiab siab sab hom kev txwv qhov sib piv ua rau nws ua tau zoo hauv kev ntsuas siab spectral thiab qis suab nrov laser qhov yuav tsum tau ua.
4. High-precision ntsuas
Daim ntawv thov ntawm tunable semiconductor lasers nyob rau hauv high-precision ntsuas muaj xws li ntsuas nyob deb, ntsuas ceev, thiab strain ntsuas. Nws cov kev sib raug zoo siab thiab nqaim kab dav dav ua rau cov kev ntsuas interferometric kom ua tiav qhov ntsuas qhov tseeb thiab ruaj khov.
5. Spectral tsom xam
Thaum tunable semiconductor lasers siv rau kev tsom xam spectral, lawv tuaj yeem muab cov ntaub ntawv siab thiab siab spectral. Lawv cov ntawv thov hauv kev saib xyuas ib puag ncig, tshuaj xyuas tshuaj, thiab biosensing pab tshawb xyuas cov kab ke thiab tshuaj xyuas cov qauv nyuaj.
6. Optical zaus scanning interferometry
Daim ntawv thov ntawm tunable semiconductor lasers hauv optical zaus scanning interferometry ua tiav qhov kev ntsuas deb ntawm lub hom phiaj los ntawm kev hloov lub laser zaus. Nws high precision thiab ntev coherence ntev ua rau nws dav siv nyob rau hauv struts struts thiab chaw tshawb nrhiav.

Hloov laser diodes rau hauv tunable semiconductor lasers qhia zaus xaiv cov tswv yim mechanisms kom ua tiav hom kev xaiv, siv cov qauv grating (xws li cov kab noj hniav sab nraud thiab cov grating built-in DFB / DBR) los tswj cov wavelength tuning, thiab optimizes stability ntawm laser tso zis thiab hom. -hop-free tuning ntau los ntawm synchronous tuning txoj kev. Cov kev tsim kho tshiab no tsis tsuas yog txhim kho qhov tseeb thiab ruaj khov ntawm cov tshuab laser, tab sis kuj nthuav dav lawv cov peev txheej hauv kev ntsuas siab, ntsuas spectral, thiab optical zaus scanning interferometry xws li.

JTBYShieldmuab cov kev ua haujlwm siab ib zaug tunable semiconductor lasers uas tuaj yeem siv rau hauv cov ntawv thov xws li laser spectroscopy, biophotonics, fundamental quantum physics, thiab semiconductor detection/metrology.Yog tias koj txaus siab, thov koj xav tiv tauj peb kom paub meej ntxiv txog cov khoom.

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.