Juyin fasaha na lasers na fiber mai ƙarfi

Juyin fasaha na lasers na fiber mai ƙarfi

IngantawaLaser ɗin fibertsari

1, tsarin famfon hasken sararin samaniya

Fitar da na'urorin laser na fiber na farko galibi ana amfani da su ne ta hanyar amfani da na'urar hangen nesa,laserfitarwa, ƙarfin fitarwarsa yana da ƙasa, domin ya inganta ƙarfin fitarwa na lasers na fiber cikin ɗan gajeren lokaci, akwai babban matsala. A shekarar 1999, ƙarfin fitarwa na filin bincike da haɓaka laser na fiber ya karya watts 10,000 a karon farko, tsarin laser ɗin fiber galibi shine amfani da famfo mai kusurwa biyu na gani, wanda ke samar da resonator, tare da binciken ingancin gangaren laser ɗin fiber ya kai kashi 58.3%.
Duk da haka, duk da cewa amfani da hasken famfon fiber da fasahar haɗa laser don ƙirƙirar lasers na fiber na iya inganta ƙarfin fitarwa na lasers na fiber yadda ya kamata, amma a lokaci guda akwai rikitarwa, wanda ba ya dace da ruwan tabarau na gani don gina hanyar gani ba, da zarar an buƙaci a motsa laser ɗin yayin gina hanyar gani, to lallai ne a sake daidaita hanyar gani, wanda ke iyakance yawan amfani da lasers na fiber na gani.

2, tsarin oscillator kai tsaye da tsarin MOPA

Tare da haɓaka laser ɗin fiber, na'urorin cire wutar lantarki na rufi sun maye gurbin abubuwan da ke cikin ruwan tabarau a hankali, suna sauƙaƙe matakan haɓaka laser ɗin fiber da kuma inganta ingantaccen kula da laser ɗin fiber a kaikaice. Wannan yanayin haɓakawa yana nuna amfani da laser ɗin fiber a hankali. Tsarin oscillator kai tsaye da tsarin MOPA su ne tsare-tsare guda biyu da aka fi sani da laser ɗin fiber a kasuwa. Tsarin oscillator kai tsaye shine cewa grating ɗin yana zaɓar tsawon tsayi a cikin tsarin oscillation, sannan yana fitar da tsawon tsayi da aka zaɓa, yayin da MOPA ke amfani da tsawon tsayi da grating ɗin ya zaɓa a matsayin hasken iri, kuma hasken iri yana ƙaruwa a ƙarƙashin aikin amplifier na matakin farko, don haka za a inganta ƙarfin fitarwa na laser ɗin fiber zuwa wani mataki. Na dogon lokaci, ana amfani da laser ɗin fiber tare da tsarin MPOA a matsayin tsarin da aka fi so don laser ɗin fiber mai ƙarfi. Duk da haka, binciken da aka yi daga baya ya gano cewa yawan wutar lantarki da ke cikin wannan tsari yana da sauƙin haifar da rashin daidaiton rarraba sararin samaniya a cikin laser ɗin fiber, kuma hasken laser ɗin da aka fitar zai shafi wani mataki, wanda kuma yana da tasiri kai tsaye kan tasirin wutar lantarki mai ƙarfi.

Tare da haɓaka fasahar famfo

Tsawon tsayin famfo na farkon laser fiber mai amfani da ytterbium yawanci shine 915nm ko 975nm, amma waɗannan tsawon tsayin famfo guda biyu sune kololuwar sha na ions na ytterbium, don haka ana kiransa famfo kai tsaye, ba a yi amfani da famfo kai tsaye ba saboda asarar quantum. Fasahar famfo a cikin band faɗaɗa fasahar famfo kai tsaye ce, inda tsawon tsayin famfo tsakanin tsawon famfo da tsawon watsawa yayi kama da juna, kuma ƙimar asarar quantum na famfo a cikin band ya fi ƙasa da na famfo kai tsaye.

Laser fiber mai ƙarfi mai ƙarfiMatsalar ci gaban fasaha

Duk da cewa laser ɗin fiber yana da matuƙar amfani a fannin soja, likitanci da sauran masana'antu, China ta haɓaka amfani da laser ɗin fiber ta hanyar bincike da haɓaka fasaha na kusan shekaru 30, amma idan kuna son yin laser ɗin fiber zai iya samar da ƙarin ƙarfi, har yanzu akwai matsaloli da yawa a cikin fasahar da ake da ita. Misali, ko ƙarfin fitarwa na laser ɗin fiber zai iya kaiwa ga yanayin fiber guda ɗaya mai ƙarfin 36.6KW; Tasirin ƙarfin famfo akan ƙarfin fitarwa na laser ɗin fiber; Tasirin tasirin ruwan tabarau na zafi akan ƙarfin fitarwa na laser ɗin fiber.

Bugu da ƙari, binciken fasahar fitar da wutar lantarki mafi girma ta laser ɗin fiber ya kamata ya yi la'akari da kwanciyar hankali na yanayin transverse da tasirin duhun photon. Ta hanyar bincike, a bayyane yake cewa abin da ke haifar da rashin daidaiton yanayin transverse shine dumama fiber, kuma tasirin duhun photon galibi yana nufin cewa lokacin da laser ɗin fiber ya ci gaba da fitar da ɗaruruwan watts ko kilowatts da yawa na wutar lantarki, ƙarfin fitarwa zai nuna saurin raguwa, kuma akwai wani matakin iyakancewa akan ci gaba da fitar da wutar lantarki mai yawa na laser ɗin fiber.

Duk da cewa ba a fayyace takamaiman dalilan da ke haifar da tasirin duhun photon a fili a halin yanzu ba, yawancin mutane suna ganin cewa cibiyar lalacewar iskar oxygen da kuma shaƙar canja wurin caji na iya haifar da faruwar tasirin duhun photon. A kan waɗannan dalilai guda biyu, an gabatar da hanyoyi masu zuwa don hana tasirin duhun photon. Kamar aluminum, phosphorus, da sauransu, don guje wa shaƙar canja wurin caji, sannan a gwada kuma a yi amfani da ingantaccen zaren aiki, ƙa'idar ta musamman ita ce a kiyaye fitarwar wutar lantarki ta 3KW na tsawon sa'o'i da yawa da kuma kula da fitarwa mai ƙarfi ta 1KW na tsawon sa'o'i 100.