Hom ntawm tunable laser

Hom ntawmtunable laser

Daim ntawv thov ntawm tunable lasers feem ntau tuaj yeem muab faib ua ob pawg loj: ib qho yog thaum ib kab lossis ntau kab ruaj khov-wavelength lasers tsis tuaj yeem muab qhov xav tau ib lossis ntau qhov sib cais wavelengths; Lwm qeb suav nrog cov xwm txheej uas covlaserwavelength yuav tsum tsis tu ncua nyob rau hauv kev sim los yog kev sim, xws li spectroscopy thiab twj-nrhiav thwmsim.

Ntau hom tunable lasers tuaj yeem tsim cov yoj tsis tu ncua (CW), nanosecond, picosecond lossis femtosecond pulse outputs. Nws cov yam ntxwv tso zis yog txiav txim siab los ntawm laser nce nruab nrab siv. Ib qho tseem ceeb yuav tsum tau rau tunable lasers yog hais tias lawv muaj peev xwm emit lasers nyob rau hauv ib tug ntau yam ntawm wavelengths. Cov khoom siv kho qhov muag tshwj xeeb tuaj yeem siv los xaiv cov wavelengths lossis wavelength bands los ntawm emission bands.tunable lasers. Ntawm no peb yuav ua kom paub ntau yam tunable lasers rau koj

Tunable CW sawv yoj laser

Conceptually, lubCW laser txiavyog qhov yooj yim tshaj plaws laser architecture. Lub laser no suav nrog daim iav high-reflectivity, qhov nruab nrab qhov nruab nrab thiab ib daim iav tso zis (saib daim duab 1), thiab nws tuaj yeem muab CW tso zis siv ntau yam laser nce media. Yuav kom ua tiav tunability, qhov nce nruab nrab uas tuaj yeem npog lub hom phiaj wavelength ntau yam yuav tsum tau xaiv.

2. Tunable CW nplhaib laser

Nplhaib lasers tau ntev tau siv los ua kom tiav tunable CW tso zis los ntawm ib hom longitudinal, nrog ib tug spectral bandwidth nyob rau hauv lub kilohertz ntau. Zoo ib yam li sawv yoj lasers, tunable nplhaib lasers kuj siv tau dyes thiab titanium sapphire li nce xov xwm. Dyes tuaj yeem muab cov kab dav dav dav tsawg dua 100 kHz, thaum titanium sapphire muab cov kab dav tsawg dua 30 kHz. Qhov sib txawv ntawm cov xim zas xim yog 550 txog 760 nm, thiab cov titanium sapphire laser yog 680 txog 1035 nm. Cov txiaj ntsig ntawm ob hom lasers tuaj yeem ua ntau zaus-ob npaug rau UV band.

3. Hom-locked quasi-nruam laser

Rau ntau daim ntawv thov, precisely txhais lub sij hawm tus yam ntxwv ntawm laser tso zis ntau yam tseem ceeb tshaj precisely txhais lub zog. Qhov tseeb, ua tiav cov pulses luv luv yuav tsum muaj kab noj hniav teeb tsa nrog ntau hom longitudinal resonating ib txhij. Thaum cov hom cyclic longitudinal muaj cov theem ruaj khov nyob rau hauv lub laser kab noj hniav, lub laser yuav raug kaw hom. Qhov no yuav pab kom ib tug mem tes mus oscillate nyob rau hauv lub kab noj hniav, nrog rau nws lub sij hawm txhais los ntawm qhov ntev ntawm lub laser kab noj hniav. Active hom-locking tuaj yeem ua tiav siv ib qhoacousto-optic modulator(AOM), lossis passive mode-locking tuaj yeem pom tau los ntawm Kerr lens.

4. Ultrafast ytterbium laser

Txawm hais tias titanium sapphire lasers muaj qhov ua tau zoo dav, qee qhov kev sim tshuaj lom neeg xav tau ntev wavelengths. Ib qho txheej txheem ob-photon nqus tau zoo siab los ntawm photons nrog lub wavelength ntawm 900 nm. Vim hais tias ntev wavelengths txhais tau tias tsis tawg, ntev excitation wavelengths muaj peev xwm ua tau zoo dua tsav cov kev sim tshuaj lom neeg uas yuav tsum tau ua kom pom qhov tob tob.

Niaj hnub no, tunable lasers tau siv nyob rau hauv ntau yam tseem ceeb, xws li los ntawm cov kev tshawb fawb yooj yim mus rau laser manufacturing thiab lub neej thiab kev noj qab haus huv sciences. Tam sim no muaj ntau yam cuab yeej cuab tam yog dav heev, pib los ntawm yooj yim CW tunable systems, uas nws nqaim linewidth yuav siv tau rau high-resolution spectroscopy, molecular thiab atomic capture, thiab quantum optics thwmsim, muab cov ntaub ntawv tseem ceeb rau niaj hnub soj ntsuam. Niaj hnub no cov tuam txhab laser muab ib qho kev daws teeb meem, muab cov khoom siv laser hla dhau 300 nm nyob rau hauv lub zog nanojule. Cov txheej txheem ntau dua nthuav dav dav dav dav ntawm 200 txog 20,000 nm hauv microjoule thiab millijoule zog ntau yam.