Kev kho qhov muag fiber ntau ntawm fiber ntau laser txiav tshuab yog ib hom nruab nrab-infrared band laser nrog fiber ntau laser ua cov khoom ua haujlwm (tau txais nruab nrab).Nws tuaj yeem muab faib ua lub ntiaj teb tsis tshua muaj doped fiber ntau laser, optical fiber nonlinear effect laser, ib leeg siv lead ua fiber laser, fiber ntau arc lasers, thiab lwm yam ..Ntawm lawv, tsis tshua muaj lub ntiaj teb doped fiber ntau lasers yog cov paub tab heev, xws li doped erbium fiber ntau amplifier (EDFA) tau siv dav hauv kev sib txuas lus fiber ntau.High fiber ntau lasers yog siv nyob rau hauv cov tub rog (photoelectric confrontation, laser nrhiav, laser kev sib txuas lus, thiab lwm yam), laser ua (laser marking, laser neeg hlau, laser micromachining, thiab lwm yam), kev kho mob thiab lwm yam teb.
Lub laser fiber ntau yog tsim los ntawm SiO2 raws li cov khoom siv ntawm cov iav fiber ntau, uas lub hauv paus ntsiab lus ntawm lub teeb qhia yog ua kom siv tag nrho cov ntsiab lus ntawm lub raj, uas yog, thaum lub teeb tawm ntawm qhov muag pom qhov nruab nrab ntawm qhov siab refractive. Performance index mus rau ib qho ntawm qhov me me refractive index nrog lub kaum sab xis loj dua lub kaum sab xis tseem ceeb, tag nrho cov kev xav yuav tshwm sim thiab qhov teeb meem teeb pom kev zoo yuav raug cuam tshuam tag nrho rau qhov muag pom qhov nruab nrab ntawm qhov siab refractive index.Thaum lub teeb raug emitted los ntawm kho qhov muag tsis zoo (uas yog, qhov ntsuas hluav taws xob tsis zoo ntawm lub teeb nruab nrab ntawm lub teeb me me), tag nrho cov teeb yog reflected rov qab mus rau hauv lub qub nruab nrab.Tsis muaj lub teeb kom nkag mus rau qhov nruab nrab ntawm qhov muag pom qhov nruab nrab uas yog qhov ntsuas me me ntawm qhov ntsuas qhov ntsuas. 125μm) thiab txheej txheej txheej txheej txheej.Fiber optic propagation hom tuaj yeem muab faib ua ib hom (SM) fiber ntau thiab ntau hom (MM) fiber ntau.Ib hom fiber ntau core txoj kab uas hla, ntawm cov tub ntxhais txoj kab uas hla me me (4 ~ 12μm) tsuas yog kis tau ib qho qauv ntawm lub teeb thiab cov qauv dispersion me me.Multimode fiber core txoj kab uas hla uas yog thicker (inch loj dua 50μm) tuaj yeem kis tau ntau hom teeb pom kev zoo thaum lub intermodal dispersion loj dua.Raws li tus nqi refractive faib, optic fiber ntau tuaj yeem muab faib ua qib ntsuas (SI) fiber ntau thiab qib ntsuas (GI) fiber ntau.
Siv lub ntiaj teb tsis tshua muaj doped fiber ntau lasers piv txwv li, doped nrog tsawg lub ntiaj teb hais raws li ib tug nce nruab nrab, doped fibers yog tsau ntawm ob daim iav ua ib tug resonant kab noj hniav.Lub twj tso kua mis teeb yog xwm txheej los ntawm M1 rau hauv fiber ntau thiab tom qab ntawd tsim laser los ntawm M2.Thaum lub teeb lub twj tso kua mis dhau los ntawm fiber ntau, nws yog absorbed los ntawm lub ntiaj teb tsis tshua muaj ions nyob rau hauv cov fiber ntau thiab cov electrons zoo siab mus rau qib siab dua kom ua tiav cov pej xeem inversion ntawm cov khoom.Cov inversed hais yog pauv los ntawm lub siab zog theem mus rau hauv av xeev nyob rau hauv daim ntawv ntawm hluav taws xob los tsim laser.
Post lub sij hawm: Jan-08-2019