Zanewar hanyar gani na zaren polarizedkunkuntar-linewidth Laser
1. Bayani
1018 nm polarized fiber kunkuntar-linewidth Laser. Tsawon tsayin aiki shine 1018 nm, ikon fitarwa na laser shine 104 W, nisa na 3 dB da 20 dB sune ~ 21 GHz da ~ 72 GHz bi da bi, ƙarancin ɓarna shine> 17.5 dB, kuma ingancin katako yana da girma (2 x M - 1.62) da A2 2.tsarin lasertare da ingantaccen tasiri na 79% (~ 1.63).
2. Bayanin hanyar gani
A cikin apolarized fiber kunkuntar-linewidth Laser, Oscillator fiber Laser mai layi na layi yana kunshe da nau'i-nau'i na polarization mai kula da fiber gratings da 1.5-mita-tsawon 10/125 μm ytterbium-doped polarization-doped polarization-doped fiber a matsayin matsakaicin riba. Matsakaicin ƙima na wannan fiber na gani a 976 nm shine 5 dB/m. Ana fitar da oscillator Laser ta hanyar kulle tsayin tsayin 976nmsemiconductor Lasertare da matsakaicin iko na 27 W ta hanyar kula da polarity (1+1) × 1 mai haɗa katako. Babban ra'ayi grating yana da haɓaka sama da 99%, kuma 3 dB bandwidth na tunani yana kusan 0.22 nm. Matsakaicin ra'ayi na grating shine 40%, kuma 3 dB bandwidth tunani yana kusan 0.216 nm. Matsakaicin raƙuman tunani na tsakiya na duka gratings suna a 1018 nm. Don daidaita ikon fitarwa na resonator Laser da ASE suppression ratio, an inganta ƙananan ƙarancin grating zuwa 40%. Wutsiyar wutsiya na grating mai girma yana haɗuwa da fiber riba, yayin da filayen wutsiya na ƙananan raƙuman raɗaɗi yana juya 90 ° kuma an haɗa shi zuwa firam ɗin wutsiya na tacewa. Don haka, kololuwar matsayi na tsayin raƙuman raƙuman raƙuman raƙuman raƙuman raƙuman raɗaɗi na babban tunani ya yi daidai da na raƙuman raƙuman raƙuman raƙuman raƙuman raƙuman tunani. Ta wannan hanyar, Laser mai polarized guda ɗaya kawai zai iya girgiza a cikin rami mai resonant. Ragowar hasken famfo a cikin faifan fiber na gani ana tacewa ta hanyar tacewa da aka yi da kanta wanda aka haɗa a cikin rami mai resonant, kuma pigtail ɗin da aka fitar yana beveled da 8° don hana amsawar ƙarshen fuska da motsin parasitic.
3. Ilimin baya
Tsarin ƙarni na Laser fiber Laser na layi: Saboda damuwa birefringence, nau'in polarization mai riƙe da fiber mai siffar pear yana da gatura na polarization guda biyu, wanda aka sani da axis mai sauri da axis a hankali. Gabaɗaya, tun da ma'anar refractive na axis a hankali ya fi na axis mai sauri, grating ɗin da aka rubuta akan fiber mai kiyaye polarization yana da tsayin tsaka-tsaki daban-daban guda biyu. Rage ramin filayen fiber Laser mai layi wanda aka ɗaure shi yawanci ya ƙunshi nau'i-nau'i biyu masu kiyaye polarization. Matsakaicin raƙuman raƙuman raƙuman raƙuman raɗaɗi da ɗigon tunani mai zurfi a kan madaidaicin sauri da jinkirin axis daidai daidai da haka. Lokacin da bandwidth tunani na polarization-ci gaba da grating ne kunkuntar isa, da watsa bakan a cikin sauri axis da jinkirin axis kwatance za a iya raba, da kuma duka wavelengths iya rawar jiki a cikin resonant rami. Dangane da ka'idar oscillation na tsawon zango biyu na polarization-reing grating, a cikin gwaji, ana iya amfani da hanyar walda mai kama da juna don cimma ta. Lokacin waldawa, gatura mai kula da polarization na grating biyu suna daidaitawa. Ta wannan hanyar, kololuwar watsawa guda biyu na grating mai girman tunani sun dace da waɗanda ke da ƙarancin tunani, don haka ana iya samun fitowar laser dual-wavelength.
A cikin ainihin tsarin kula da polarization Laser, skew na layi shine muhimmiyar alama don ƙididdige halayen fitarwa na lasers polarized. Gabaɗaya, lokacin grating mai girma yana da girma fiye da na ɗan ƙaramin tunani. Don cimma laser mai madaidaicin layi tare da babban ƙimar PER, kololuwar polarization ɗaya kawai yana buƙatar girgiza. Lokacin da madaidaicin madaidaicin madaidaicin ra'ayi ya kasance tare da jinkirin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin tsayin daka. grating. Ta wannan hanyar, ana iya girgiza kololuwar watsawa ɗaya. Hakazalika, a lokacin da jinkirin da ake yi na ƙananan raƙuman raƙuman raƙuman ruwa ya kasance tare da maɗaukaki mai sauri na ma'auni mai girma, matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin raƙuman raƙuman raƙuman raƙuman raƙuman raƙuman raƙuman ruwa ya dace da abin da ke daɗaɗɗen raƙuman raƙuman ruwa. Ta wannan hanyar, ɗayan kololuwar watsawa kuma ana iya girgiza. Dukansu hanyoyin biyu na sama suna iya cimma fitowar Laser mai ƙima. Dangane da ka'idar oscillation Laser mai tsayin tsayin tsayi guda ɗaya na ƙa'idar kula da polarization, a cikin gwaji, ana iya amfani da hanyar splicing orthogonal don cimma ta. Lokacin da splicing Angle na polarization-ci gaba da gatura na high tunani grating da low tunani grating ne 90 °, da watsa kololuwa a cikin jinkirin axis shugabanci na babban tunani grating yayi dace da watsa ganiya a cikin sauri axis shugabanci na low tunani grating, kuma ta haka ne da fitarwa na guda-wavelength linearly za a iya gane fiber Laser.
Lokacin aikawa: Satumba-12-2025