Txoj cai kho qhov muag ntawm Tunable semiconductor laser (Tunable laser)

Txoj cai ntawm kev kho kom zooLaser semiconductor uas hloov tau(Laser uas hloov tau)

Tunable semiconductor laser yog ib hom laser uas tuaj yeem hloov pauv qhov wavelength ntawm cov zis laser hauv qee qhov ntau thiab tsawg. Tunable semiconductor laser siv thermal tuning, electrical tuning thiab mechanical tuning los kho qhov ntev ntawm qhov cavity, grating reflection spectrum, theem thiab lwm yam hloov pauv kom ua tiav qhov wavelength tuning. Hom laser no muaj ntau yam kev siv hauv kev sib txuas lus optical, spectroscopy, sensing, kev kho mob thiab lwm yam teb. Daim duab 1 qhia txog cov khoom xyaw yooj yim ntawm alaser kho tau, suav nrog lub chaw nce lub teeb, lub qhov FP uas muaj cov iav pem hauv ntej thiab nram qab, thiab lub chaw lim dej xaiv hom optical. Thaum kawg, los ntawm kev kho qhov ntev ntawm lub qhov cuam tshuam, lub lim dej hom optical tuaj yeem ncav cuag qhov tso zis xaiv wavelength.

DUAB 1

Txoj kev tuning thiab nws cov derivative

Lub hauv paus ntsiab lus ntawm kev tuningcov laser semiconductorfeem ntau nyob ntawm kev hloov cov yam ntxwv ntawm lub laser resonator kom ua tiav kev hloov pauv tas mus li lossis sib cais hauv qhov tso zis laser wavelength. Cov kev ntsuas no suav nrog, tab sis tsis txwv rau, refractive index, qhov ntev ntawm qhov, thiab kev xaiv hom. Cov hauv qab no qhia txog ntau txoj kev kho kom zoo nkauj thiab lawv cov ntsiab cai:

1. Kev kho qhov txhaj tshuaj ntawm tus neeg nqa khoom

Kev kho qhov kev txhaj tshuaj ntawm tus neeg nqa khoom yog hloov qhov ntsuas refractive ntawm cov khoom siv los ntawm kev hloov qhov tam sim no txhaj rau hauv thaj chaw nquag ntawm lub semiconductor laser, yog li ua tiav qhov kev kho qhov wavelength. Thaum qhov tam sim no nce, qhov concentration ntawm tus neeg nqa khoom hauv thaj chaw nquag nce, ua rau muaj kev hloov pauv ntawm qhov ntsuas refractive, uas cuam tshuam rau qhov wavelength ntawm laser.

2. Kev kho cua sov Kev kho cua sov yog hloov qhov ntsuas refractive thiab qhov ntev ntawm cov khoom siv los ntawm kev hloov qhov kub ua haujlwm ntawm lub laser, kom ua tiav qhov wavelength tuning. Kev hloov pauv ntawm qhov kub thiab txias cuam tshuam rau qhov ntsuas refractive thiab qhov loj ntawm cov khoom siv.

3. Kev kho kom haum raws li lub tshuab Kev kho kom haum raws li lub tshuab yog ua kom tau qhov wavelength kho kom haum raws li qhov chaw lossis lub kaum sab xis ntawm cov khoom siv sab nraud ntawm lub laser. Cov txheej txheem kho kom haum raws li lub tshuab feem ntau suav nrog kev hloov lub kaum sab xis ntawm lub diffraction grating thiab txav qhov chaw ntawm daim iav.

4 Kev kho qhov muag hluav taws xob Kev kho qhov muag hluav taws xob yog ua tiav los ntawm kev siv lub zog hluav taws xob rau cov khoom siv semiconductor los hloov qhov ntsuas refractive ntawm cov khoom, yog li ua tiav qhov kev kho qhov wavelength. Txoj kev no feem ntau siv rau hauvcov khoom siv hluav taws xob kho qhov muag (EOM) thiab electro-optically tuned lasers.

Hauv kev xaus, lub hauv paus ntsiab lus ntawm kev kho qhov muag ntawm lub tshuab hluav taws xob semiconductor feem ntau ua rau qhov kev kho qhov muag ntawm qhov ntev los ntawm kev hloov cov yam ntxwv ntawm lub resonator. Cov yam ntxwv no suav nrog qhov ntsuas refractive, qhov ntev ntawm qhov cavity, thiab kev xaiv hom. Cov txheej txheem kho qhov muag tshwj xeeb suav nrog kev kho qhov muag ntawm tus neeg nqa khoom, kev kho qhov muag thermal, kev kho qhov muag mechanical thiab kev kho qhov muag electro-optical. Txhua txoj kev muaj nws tus kheej lub cev tshwj xeeb thiab kev suav lej, thiab kev xaiv txoj kev kho qhov muag tsim nyog yuav tsum tau txiav txim siab raws li cov kev cai thov tshwj xeeb, xws li qhov ntau thiab tsawg, kev kho qhov muag ceev, kev daws teeb meem thiab kev ruaj khov.