The Thorlabs fiber collimator mai nuna fiber yana dogara ne akan madubi na 90°off-axis paraboloid (OAP) tare da tsayin daka mai tsayi akan kewayon tsayin raƙuman ruwa kuma yana da kyau don amfani a cikin tsarin da ke buƙatar haɗuwa da tsayin raƙuman ruwa da yawa.
Ana samun collimator mai nunawa a cikin ƙirar gidaje guda uku, kowannensu ya dace da masu tsalle-tsalle na fiber tare da masu haɗin FC/PC, FC/APC, ko SMA.
Basics Of OAP Reflector
OAP(Off-Axis Parabolic) Reflector wani bangare ne na mahaifansa na parabolic.
Kashe-axis yana nufin cewa gatura na gani na biyu sun yi daidai da juna amma ba daidaituwa ba.
Axis mayar da hankali ya wuce ta tsakiyar mayar da hankali da kuma OAP Reflector,kuma nisa tsakanin waɗannan maki biyu ana kiransa tsayin dakafi mai nunawa(RFL).
Angle tsakanin axis mayar da hankali da na gani axis ne kashe-axis Angle,wanda shine digiri 90 a nan.
Kafaffen Collimator
Kafaffen fiber collimators suna ba da manyan fina-finai na ƙarfe guda biyu: -F01 UV-ingantaccen fim ɗin aluminum da fim ɗin azurfa -P01 tare da Layer mai kariya, waɗanda sukeshawarar don guda-yanayin da multimode fiber collimation daMultimode fiber hadawa aikace-aikace.
Dangane da diamita na katako (na fiber 0.13 NA), suna iya zamaan kasasu zuwa silsilai hudu masu zuwa:
Hotuna huɗun da ke sama sune RC02FC-P01, RC04FC-P01, RC08APC-P01 daRC12SMA-P01 bi da bi.
Saboda haka, bisa ga samfurin samfurin, za mu iya sanin manyan sigogina kowane m collimator, ciki har da collimated katako diamita, fibermai haɗawa da sutura.
Ƙungiyoyin RC02, RC04, da RC08 sun dace da na ciki SM05-Threaded firam, yayin da RC12 collimator ya dace da ciki SM1-zaren firam.
Bugu da kari, RC02 collimator za a iya ƙare-saka kai tsaye zuwa cikin Ø1/2"hawan kinematic, yayin da RC02, RC04, da RC08 za a iya saka su kai tsaye.a cikin wani dutsen kinematic Ø1" (bayan an fara buɗe zoben da aka ɗaure a kan kyauta).tashar sararin samaniya);
Yin hawa tare da dutsen kinematic yana sauƙaƙe daidaitawar katako lokacin haɗin fiberake bukata.
Small Collimator
Karamin collimator yana samun slimmer zane ta hanyar samun mai haskakawa a cikinkishiyar shugabanci zuwa gaba. Ana iya raba shi zuwa jeri biyu bisa gaTsawon mai da hankali: RCR25x-P01 da RCR50x-P01, tare da tsayin tsayin tunani.na 25.4 da 50.8 mm bi da bi; x a cikin lambar ƙirar shine fibernau'in haɗin, wanda za'a iya maye gurbinsa da P, A da S don wakiltar FC/PC,FC/APC da SMA haši bi da bi.
Ana iya saka ƙananan masu haɗaka kai tsaye zuwa cikin Ø1/2" na bututun ruwan tabarau, irin wannankamar yadda SM05RC(/M) zamewar zobe da SM05TC matsa.
Idan ana buƙatar daidaitawar farar/yaw, ana iya saka su a cikin Ø1" kinematichawa ta amfani da adaftar SM1A60.
Hakanan za'a iya haɗa ƙaramar collimator kai tsaye cikin kejin mm 16tsarin ta amfani da farantin keji na SP3 ko SC6W keji cube, ko cikin 30 mmtsarin keji ta amfani da adaftar SM1A60 da kuma C4W cage cube.
Daidaitacce Collimator
Masu haɗawa masu daidaitawa na iya daidaita nisa daga fiber zuwa madubi na OAP don haɓaka haɗuwar kowane fiber ko kuma su haɗa haske zuwa singlemode ko fibers multimode.
Lokacin da layin rubutun ya daidaita tare da alamar ∞, nisa daga fiberzuwa mai nuna OAP daidai yake da RFL, kuma mai haɗawa yana fitar da akatako mai haɗin gwiwa (a sama).
Lokacin da layin rubutun ya bambanta daga alamar ∞, mai haɗawa yana fitar da asãɓãwar launukansa ko convergent katako, da matsakaicin nisa daga mayar da hankali gatsakiya na reflector ne -2.2 m da 0.15 m, bi da bi, kamar yadda aka nuna a cikinbin adadi biyu.
Lokacin da rabon haɗin kai yayi daidai da rashin iyaka, madubin OAP na iya cimmawadiffraction-iyakantaccen hoto.
Kamar yadda aka nuna a cikin hoton da ke ƙasa, ana iya daidaitawa biyu masu daidaitawaya dace sosai don haɗin kai mai nisa, don haka tsaka-tsakin sararin samaniyaZa a iya sarrafa katako tare da sauran abubuwan gani, wanda ke da amfani sosai a cikiaikace-aikacen sadarwa mai nisa.
RCF15x-P01 daidaitacce collimator za a iya hawa a cikin SM1RC(/M) zamewar.zobe ko SM1TC manne hannun riga ta amfani da sashin baki.
Don daidaita farar farar/yaw, ana ba da shawarar yin amfani da tudun Polaris, kamarPOLARIS-K2 ko POLARIS-K2VS2L Ø2" kinematic dutsen ta amfani da AD2Tadaftan; POLARIS-K2T SM2-threaded kinematic Dutsen ta amfani da SM2A21adaftan; ko POLARIS-K15XY 5-axis kinematic mount ta amfani da SM1L03tube ruwan tabarau da adaftar SM1A68.
Ƙarshen sararin sararin samaniya na daidaitaccen mahalli collimator yana zaren tare dana ciki SM05 da na waje SM1 zaren.
Misalai na hawan collimatorana nuna su a cikin waɗannan adadi biyu masu zuwa.
Haɗin Fiber Mode Guda ɗaya
Lokacin haɗuwa da zaruruwan yanayi guda ɗaya, waɗannan ƙwararrun ƙwararru suna samar da fa'ida- kugu, ƙananan igiyoyi masu bambance-bambance.
Ana iya ƙididdige jimlar bambance-bambancen katakon da aka haɗa (a cikin digiri).ta hanyar diamita na yanayin yanayin fiber (MFD) da tsayin mai da hankali (RFL):
Diamita 1/e² na katako da aka haɗa shi kusan:
Misali, ta amfani da RCR25A-P01 ƙaramin collimator don haɗa P3-630A-FC-1 fiber yanayin guda ɗaya, a tsawon tsayin λ = 633 nm, MFD shine 4.3µm.
Lissafi biyun da ke sama sun nuna cewa kusurwar bambance-bambancen shine digiri 0.01, kuma diamita na katako shine 4.8 mm.
Multimode Fiber Collimation
Jimlar kusurwar bambance-bambancen katakon da aka haɗu ya kusan:
Diamita na katakon da aka haɗa shi kusan:
Fitar multimode fiber yawanci ba a haɗa shi da kyau ba.
Dangane da dabarar da ke sama, diamita na katako ya fi shafar NAa wani matsayi kusa da OAP reflector, amma yayin da katako ya yadu, datasiri na core diamita zama mafi bayyananne.
Don ƙayyadaddun collimator da aka ambata a sama, diamita na katako mai haɗuwa shineƙididdiga ta 2NA*RFL, wanda ya fi 1/e² diamita na katako.
Lokacin zabar ƙayyadadden collimator, ana iya fahimtar tsayin mai da hankali dagada ake buƙata diamita na katako don ƙayyade samfurin da ya dace.
Akwai mahimman iyakoki guda biyu don haɗuwa da zaruruwan multimode.
Na farko, mafi yawan zaruruwan multimode suna da ɓangarorin fitowar haske wanda zai iya zamakatange ta gidaje kafin isa ga OAP reflector, don haka fiber NAba zai iya wuce wani ƙima ba; duba teburin da ya gabata don cikakkun bayanai.
Na biyu, bambance-bambancen katako mai haɗuwa yana da alaƙa da ainihindiamita; yayin da babban diamita ya karu, matsakaicin NA yana goyan bayancollimator yana raguwa.
Idan diamita na katako da aka haɗu ya wuce madaidaicin buɗaɗɗen buɗaɗɗen, fitarwarza a toshe katako ta hanyar gidaje.
Duk waɗannan yanayi na iya haifar da rage ingancin katako.
Bugu da kari, masu yin nunin OAP na iya kawai daidaita tushen ma'ana a wurinwurin mai da hankali.
Mafi girman karkacewar tushen ma'ana daga axis na gani, ko kumaya fi girma da multimode core diamita, mafi girma da murdiya na collimatedkatako; ƙara da tunani mai da hankali tsayi ko zango na iya rage damurdiya.
Lokacin aikawa: Nuwamba-05-2024
