Lub hauv paus ntawm ib hom fiber laser

Lub hauv paus ntawm ib qhoib hom fiber laser

Kev ua tau zoo tshaj plaws ntawm ib homlaser fiberlos ntawm lawv cov qauv tsim sab hauv uas meej. Kev ua haujlwm sib koom tes zoo ntawm txhua yam khoom yog lub hauv paus rau kev ua tiav cov zis laser ruaj khov thiab zoo.

Piv txwv li, lub laser 976nm nrog lub zog hloov pauv hluav taws xob siab dua yog siv los them lub fiber doped, thiab tom qab ntawd lub teeb noob 1064nm nrog lub teeb zoo yog siv los coj cov fiber doped them kom tso tawm lub laser 1064nm nrog lub zog siab dua. Lub zog laser 1064nm siab dua, lub zog thiab qhov ntau ntawm lub twj tso kua mis yog qhov xav tau.

Piav qhia txog cov khoom tseem ceeb

Lub zog ntawm lub twj tso kua mis yog qhov chaw ntawm lub zoglaser, feem ntau yog iblaser semiconductordiode, uas nws qhov wavelength emission phim qhov absorption peak ntawm qhov nce medium (piv txwv li, ytterbium-doped fiber sib raug rau qhov wavelength ntawm 915nm lossis 976nm). Ib hom laser xav tau lub twj tso kua mis lub teeb kom muaj qhov sib xws siab. Yog li ntawd, ib hom fiber-coupled laser diodes feem ntau siv los xyuas kom meej tias lub twj tso kua mis lub teeb tuaj yeem txhaj tshuaj mus rau hauv lub fiber zoo ib hom.

2. Cov fiber ntau yog cov khoom siv tseem ceeb rau kev tsim laser thiab feem ntau yog cov iav quartz uas muaj cov khoom tsis tshua muaj. Cov ions doped feem ntau suav nrog ytterbium (Yb³⁺), erbium (Er³⁺), thulium (Tm³⁺), thiab lwm yam, uas sib haum rau cov kab sib txawv ntawm cov zis wavelength (xws li 1064nm, 1550nm, 2μm, thiab lwm yam). Qhov ntev ntawm cov fiber ntau yuav tsum tau tsim kom meej kom ntseeg tau tias lub teeb twj tso kua mis nqus tau tag nrho thaum tswj kev hloov pauv opto-optical ua haujlwm siab.

3. Daim ntawv siv feem ntau ntawm lub resonant cavity yog cov fiber Bragg grating khub. Lub grating yog tsim los ntawm kev nthuav tawm cov fibers optical rau ultraviolet laser cuam tshuam fringes, ua rau muaj kev hloov pauv tas mus li hauv cov refractive index ntawm lawv cov cheeb tsam tseem ceeb. Los ntawm kev tswj lub sijhawm thiab qhov ntev ntawm lub grating, lub wavelength nruab nrab thiab bandwidth ntawm nws qhov kev cuam tshuam tuaj yeem tswj tau meej. Cov qauv resonant cavity tag nrho no tsis xav tau cov khoom sib cais xws li cov iav kho qhov muag, ua rau muaj kev ruaj khov thiab tiv thaiv kev cuam tshuam ntawm lub kaw lus.

4. Lub tshuab tso zis teeb pom kev zoo feem ntau nyob tom qab lub grating kawg. Nws lub luag haujlwm yog hloov cov laser divergent uas tawm los ntawm cov fiber ntau optical mus rau hauv lub teeb sib luag collimated lossis ntxiv tsom nws mus rau ntawm qhov chaw ua haujlwm. Lub kaw lus no feem ntau suav nrog cov iav tsom iav lossis cov iav me me thiab siv cov qauv kho tshuab kom raug kom ntseeg tau tias muaj kev sib phim raug. Kev tsim kho qhov muag zoo tuaj yeem txo qhov tsis zoo thiab xyuas kom meej tias cov iav tso zis tswj tau qhov kev faib tawm Gaussian zoo heev.