kunkuntar Fasahar Laser Layin Layi Kashi Na Biyu
A cikin 1960, Laser na farko na ruby na duniya shine laser mai ƙarfi mai ƙarfi, wanda ke da ƙarfin fitarwa mai girma da ɗaukar nauyi mai faɗi.Tsarin sararin samaniya na musamman na Laser mai ƙarfi-jihar ya sa ya fi sauƙi a cikin ƙira na kunkuntar fitarwa na layi.A halin yanzu, manyan hanyoyin da aka aiwatar sun haɗa da gajeriyar hanyar rami, Hanyar rami na zobe guda ɗaya, daidaitaccen daidaitaccen hanyar intracavity, Hanyar kogon yanayin torsion pendulum, Hanyar Bragg grating da hanyar allurar iri.
Hoto na 7 yana nuna tsarin nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan lesa masu ƙarfi guda ɗaya.
Hoto 7(a) yana nuna ƙa'idar aiki na zaɓin yanayin tsayin daka guda ɗaya bisa ma'aunin FP a cikin rami, wato, kunkuntar watsa bakan layi na daidaitattun ana amfani da shi don ƙara asarar sauran hanyoyin madaidaiciya, ta yadda sauran hanyoyin madaidaiciya. Ana tacewa a cikin tsarin gasar yanayin saboda ƙananan watsawarsu, don cimma nasarar yanayin aiki guda ɗaya.Bugu da kari, ana iya samun takamaiman kewayon fitarwa na daidaita tsawon zango ta hanyar sarrafa kusurwa da zafin jiki na ma'aunin FP da canza tazarar yanayin a tsaye.FIG.7(b) da (c) suna nuna oscillator na zobe mara tsari (NPRO) da kuma hanyar kogon juzu'i na juzu'i da aka yi amfani da shi don samun fitowar yanayin yanayin tsayi guda ɗaya.The aiki manufa shi ne don sa katako propagate a guda shugabanci a cikin resonator, yadda ya kamata kawar da m sarari rarraba yawan reversed barbashi a cikin talakawa tsaye kalaman kogon, kuma ta haka ne kauce wa tasiri na sarari rami kona sakamako cimma wani sakamako. Fitowar yanayin tsayi ɗaya.Ka'idar zaɓin yanayin girma na Bragg grating (VBG) yayi kama da na semiconductor da fiber kunkuntar lasers mai faɗin layin da aka ambata a baya, wato, ta amfani da VBG azaman sigar tacewa, dangane da kyakkyawan zaɓinsa na gani da zaɓin kusurwa, oscillator. oscillates a takamaiman tsayin igiya ko band don cimma matsayin zaɓin yanayin a tsaye, kamar yadda aka nuna a hoto na 7 (d).
A lokaci guda, ana iya haɗa hanyoyin zaɓin yanayin tsayi da yawa bisa ga buƙatu don haɓaka daidaiton zaɓin yanayin tsayin daka, ƙara kunkuntar layin layi, ko haɓaka ƙarfin gasar yanayin ta hanyar gabatar da canjin mitar da ba na kan layi ba da sauran hanyoyin, da faɗaɗa tsayin daka na fitarwa. Laser yayin aiki a cikin kunkuntar layin layi, wanda ke da wahala a yi donsemiconductor Laserkumafiber Laser.
(4) Brillouin Laser
Laser Brillouin yana dogara ne akan tasirin watsawa na Brillouin (SBS) don samun ƙaramar amo, fasahar fitarwa ta kunkuntar layi, ka'idodinsa shine ta hanyar photon da ma'amalar filin acoustic na ciki don samar da takamaiman motsi na Stokes photons, kuma ana ci gaba da haɓakawa a cikin samun bandwidth.
Hoto na 8 yana nuna zanen matakin juyawa SBS da ainihin tsarin laser Brillouin.
Saboda ƙananan mitar girgizawar filin acoustic, canjin mitar Brillouin na kayan yawanci shine 0.1-2 cm-1 kawai, don haka tare da 1064 nm Laser azaman hasken famfo, tsayin igiyoyin Stokes da aka haifar galibi kusan 1064.01 nm ne, amma wannan kuma yana nufin cewa ingancin juzu'in juzu'in sa yana da girma sosai (har zuwa 99.99% a ka'idar).Bugu da ƙari, saboda ƙimar Brillouin na matsakaicin matsakaici yawanci shine kawai na tsari na MHZ-ghz (ƙarfin riba na Brillouin na wasu ingantattun kafofin watsa labaru kusan kusan 10 MHz ne kawai), ya yi ƙasa da riba mai faɗin layin aiki na Laser. na tsari na 100 GHz, don haka, The Stokes m a Brillouin Laser iya nuna bayyanannen bakan kunkuntar sabon abu bayan mahara amplification a cikin kogo, da kuma fitarwa line nisa ne da yawa umarni na girma kunkuntar fiye da famfo line nisa.A halin yanzu, Laser na Brillouin ya zama wurin bincike a cikin filin photonics, kuma an sami rahotanni da yawa akan tsari na Hz da sub-Hz na kunkuntar fitowar layi.
A cikin 'yan shekarun nan, na'urorin Brillouin tare da tsarin waveguide sun fito a fagenmicrowave photonics, kuma suna tasowa da sauri a cikin jagorancin miniaturization, babban haɗin kai da ƙuduri mafi girma.Bugu da kari, Laser na Brillouin na sararin samaniya wanda ya dogara da sabbin kayan kirista kamar lu'u-lu'u shi ma ya shiga cikin hangen nesa na mutane a cikin shekaru biyu da suka gabata, sabbin nasarorin da ya samu a cikin karfin tsarin waveguide da kwalaben SBS na cascade, ikon Laser Brillouin. zuwa 10 W girma, aza harsashin fadada aikace-aikace.
Gabaɗaya junction
Tare da ci gaba da bincike na ilimin yankan-baki, kunkuntar lasers na layi sun zama kayan aiki mai mahimmanci a cikin binciken kimiyya tare da kyakkyawan aikin su, kamar Laser interferometer LIGO don gano igiyoyin nauyi, wanda ke amfani da layin kunkuntar mitoci guda ɗaya.Lasertare da tsawon 1064 nm azaman tushen iri, kuma layin hasken iri yana cikin 5 kHz.Bugu da kari, kunkuntar-nisa lasers tare da wavelength tunable kuma babu yanayin tsalle kuma yana nuna babban aikace-aikace yuwuwar, musamman a cikin m sadarwa, wanda zai iya daidai saduwa da bukatun na zango division multiplexing (WDM) ko mita division multiplexing (FDM) ga zango (ko mita). ) daidaitawa, kuma ana sa ran za ta zama ainihin na'urar zamani na fasahar sadarwa ta wayar hannu.
A nan gaba, ƙirƙira kayan aikin Laser da fasahar sarrafawa za su ƙara haɓaka matsa lamba na layin Laser, haɓaka daidaiton mita, faɗaɗa zangon raƙuman ruwa da haɓaka ƙarfi, buɗe hanyar binciken ɗan adam na duniyar da ba a sani ba.
Lokacin aikawa: Nuwamba-29-2023