A cikin shekaru goma da suka gabata, tare da ci gaba da haɓaka tushen famfo da tsarin laser, fasahar Laser fiber ta inganta sosai. Dangane da fiber na gani na doped (YDF-Laser) ana amfani dashi ko'ina a masana'antu, bincike na kimiyya, da dai sauransu saboda babban ƙarfin jujjuyawar wutar lantarki, mafi kyawun ingancin katako da kwanciyar hankali.
Hoto 1. Spectral sha kudi daban-daban karfe kayan
Na'urorin fiber Laser na zamani masu ƙarfi guda ɗaya na zamani sun daɗe suna iya aiwatar da kayan aikin gani na gani na dijital na KW cikin sauƙi, wanda ke yin irin wannan laser a fagen sarrafa ƙarfe. A ƙarƙashin yanayin wutar lantarki iri ɗaya, saboda nau'in sha daban-daban, 1 micron fiber laser dangane da fiber na manya yana haɓaka sosai lokacin da CO2 Laser na 10 microns ya fi dacewa fiye da kayan ƙarfe. Hoto na 1 yana ba da ƙimar ɗaukar nau'ikan nau'ikan ƙarfe daban-daban, wanda za'a iya gani daga adadi cewa yawancin kayan ƙarfe akan halayen ɗaukar bakan suna nuna hali na raguwa yayin da tsayin tsayin gani yana ƙaruwa. Abun ƙarfe a fili yana da ƙarfi fiye da tsayin fitarwa na kusan 1070 nm dangane da ƙarfin fitarwa na laser CO2 a Laser CO2 a 10.6um. Musamman ma, ƙimar ƙarfin ƙarfe na ƙarfe a ƙarƙashin 1070 nm tsayin raƙuman ruwa ya kusan sau 6 ƙasa da yanayin tsayin igiyoyin 10.6um.
Hoto 2. Dangantakar shayarwar aluminosilicate da phosphosilicate (YB) fiber akan bakan 800-1100 nm
Saboda fiber na gani da aka haɗe yana da ƙaƙƙarfan yanayin shayarwa na 976 nm da 915 nm tsayin raƙuman ruwa, irin waɗannan lasers galibi ana yin su ne ta hanyar laser semiconductor (LD) wanda ke fitar da tsayin da ke sama. Hoto na 2 shine nau'ikan filaye na gani guda biyu na yau da kullun zuwa ƙimar shayarwar dangi na 800 zuwa 1100 nm spectroscopy, kuma akwai gagarumin juzu'i mai girma kusa da 915 nm da 976 nm. Yawan sha na 976nm haske tãguwar ruwa a cikin aluminosilicate dumping fiber kusan sau uku haske kalaman na 915 nm, da kuma sha na tsohon a cikin phosphosilicate kusan 5 sau na karshen. Irin wannan hasara ya bambanta, ma'ana cewa irin waɗannan lasers sun ɗauki fasahar famfo na 976nm LD don cimma ingantaccen canjin haske-na gani. A lokaci guda, mafi girma sha kuma yana nufin rage tsawon fiber ɗin yadda ya kamata, ta yadda zai iyakance illar da ba na kan layi ba zuwa wani ɗan lokaci.
Hoto 3 Kwangilar Photon Dinoff (PD) Rashin Matakan Makamashi na YB Ion Daban-daban.
A halin yanzu, manyan-aiki kasa da kasa doped fiber Laser bukatar fuskantar photodational matsaloli. Wannan matsala yana haifar da raguwa mai mahimmanci a cikin ikon fitarwa na laser, kwanciyar hankali da rayuwar aiki. Duhuwar Photon Har ila yau, an ba da rahoton lamarin a cikin adadi mai yawa na ion-doped fiber lasers. An yi la'akari da cewa wannan al'amari yana faruwa ne ta hanyar tsakiyar launi da aka samar a cikin gilashin gilashi. Nazarin da suka gabata sun ba da shawara mai yawa don magance wannan photon dacte, ciki har da haɗin gwiwar phosphorus a cikin fiber, ta amfani da Laser 405 nm, photobleaching, ko da yin amfani da zafin jiki, annealing na photon decimensing na photon yana faruwa. . Daga cikin su, kodayake ana iya kawar da phosphorus da kyau, asarar baya da buɗewar lambobi.
Nazarin da aka yi a baya na ƙungiyar Koponen, akan photon darker ya nuna cewa saurin shan photon ya dogara ne akan ƙaddamar da mites mai ban sha'awa, wanda shine yanayin yanayin makamashi na jujjuyawar ion (YB Inversion Rate). Sun gano cewa adadin shan photon ya yi daidai da sau 7 a cikin juyar da makamashin ionic. An ba da wani lanƙwasa na asarar hasara na photon na tsawon lokaci a cikin siffa 3 a cikin siffa 3 a cikin siffa ta 3. Bayanan suna da hankali sosai cewa yawan duhun photon yana ƙaruwa sosai tare da karuwar ƙarfin juyawa.
Hoto 4, YB Ion Energy Reverse Rate Kamar yadda Canjin Canjin Wutar Ruwa a ƙarƙashin 976 Nm da 920 NM Pomp Yanayin
Matsakaicin jujjuyawar yanayin makamashi a cikin fiber ɗin doped yana shafar yawan fiber ɗin, ikon famfo, ra'ayin haske, da tsayin tsayin raƙuman hasken famfo. Za'a iya murƙushe madaidaicin tsayin haske na famfo zuwa babba. Juya juzu'i na yanayin makamashi ana bayyana shi azaman rabo na ɗaukar hoto tare da sashin giciye iri ɗaya a wani ɗan ƙaramin haske na famfo, sannan ana samun yanayin kuzarin fiber ɗin da aka yi amfani da shi a ƙarƙashin yanayin hasken famfo guda biyu na 976 nm da 920 nm. Matsakaicin juzu'i ya bambanta tare da canjin wutar lantarki (Fig 4). Ko da yake bakan da ke cikin FIG 2 a farkon Fig 2 na nuna cewa halayen sha na hasken 976nm na tsayin raƙuman ruwa yana da ƙarfi fiye da sauran tsayin raƙuman ruwa, amma saboda hasken 976 nm yana da girma sosai, a ƙarshe ana samun shi ta hasken famfo fiye da a cikin. 920nm ku. Ƙananan makamashi a cikin yanayin yana da ƙasa. Ko da yake bayanan ba su ba da kai tsaye ga yanayin makamashin jujjuyawar famfon na nm 915 ba, har yanzu ana iya yin hasashen cewa tushen hasken famfo mai lamba 976nm yana da ƙarfin ikon sarrafa bayanan gani fiye da na farko.
Kodayake hanyar famfo na 976nm yana da ƙimar haɓaka mafi girma da ingantaccen canjin haske, yana iya rage tsayin fiber ɗin da ake samu yadda yakamata, kuma ana iya rage tasirin cutar canache na photon, amma dangane da yanayin famfo na 915 nm akan jiyya na fiber da haɗin kai. . Fasaha ya fi wahala. Haka kuma, nau'in nau'in nau'in fiber da aka haɗa a cikin kewayon 976 nm ya yi kunkuntar sosai. Canjin tsayin tsayin daɗaɗɗen yanayin zafi na tushen famfo na iya haifar da ƙarfin fitarwar Laser zuwa rashin kwanciyar hankali, kuma wannan fasahar famfo tana da tsananin buƙata na tsarin kula da yanayin zafi na Laser. Saboda haka, kawai ƴan Laser masana'antun ne kamar Jamus IPG, da Amurka Coherent-Rofin, da US GW da sauran masana'antun amfani da 976 nm famfo tushen a cikin manyan sikelin masana'antu Laser.
Lokacin aikawa: Yuli-27-2021