Rarraba da daidaitawa makirci na Laser modulator
Laser modulatorwani nau'i ne na kayan aikin Laser mai sarrafawa, ba shi da asali kamar lu'ulu'u, ruwan tabarau da sauran abubuwan da aka gyara, kuma ba a haɗa su sosai kamar lasers,Laser kayan aiki, babban mataki ne na haɗin kai, nau'o'in da ayyuka na samfuran aji na na'urar. Daga hadaddun magana na igiyoyin haske, ana iya ganin cewa abubuwan da suka shafi tasirin hasken sune ƙarfin A (r), lokaci Φ (r), mita ω da kuma bangarori hudu na jagorancin yaduwa, ta hanyar sarrafa waɗannan abubuwan na iya canza yanayin yanayin hasken wuta, madaidaicin laser modulator shinematsananci modulator, Modulator na lokaci, mai sauya mitar mitoci da mai karewa.
1. Intensity modulator: ana amfani da shi don daidaita ƙarfin ko girman laser, wanda masu amfani da na'ura na gani, ƙofofi na gani sun fi wakilci, da na'urori da kayan aiki da kayan aiki irin su masu rarraba lokaci, masu daidaita wutar lantarki, masu tayar da hayaniya.
2. Modulator mataki: ana amfani da shi don sarrafa lokaci na katako, karuwar lokaci ana kiransa lag, raguwar lokaci ana kiransa gubar. Akwai nau'ikan na'urori masu daidaitawa da yawa, kuma ka'idodin aikin su sun bambanta sosai, kamar masu daidaitawa na hoto, LN high-gudun electro-optical modulators, zanen gadon lokaci na jinkirin canza yanayin ruwa, da sauransu, duk masu daidaita yanayin lokaci ne bisa ka'idodin aiki daban-daban.
3. Matsakaicin mita: ana amfani dashi don canza yawan raƙuman haske, ana amfani da su sosai a cikin tsarin laser mai tsayi ko kayan aiki na taswira, tare da mai sauya sauti na acousto-optical a matsayin wakilci na yau da kullum.
4. Deflector: ana amfani da su don canza shugabanci na yada katako, tsarin galvanometer na al'ada yana daya daga cikinsu, ban da sauri mems galvanometer, electro-optical deflector da acousto-optical deflector.
Muna da gaba ɗaya ra'ayi na Laser modulator, wato, abubuwan da za su iya sarrafa ƙarfi da canza wasu kaddarorin Laser, amma muna son gabatar da takamaiman samfuran na'urar modulator na Laser, labarin kawai bai isa ba. Don haka, da farko, mayar da hankali kan na'ura mai ƙarfi. Intensity modulator a matsayin nau'in modulator wanda aka yadu ana amfani dashi a cikin kowane nau'ikan tsarin gani, nau'ikan sa, ana iya kwatanta aikin daban-daban a matsayin mai rikitarwa, a yau don gabatar muku da makircin matsananciyar ƙarfi guda huɗu: makircin injina, makircin lantarki-na gani, tsarin acousto-optic da makircin ruwa crystal.
1. Tsarin injina: injin ƙarfin injina shine farkon kuma mafi yawan amfani da ƙarfin modulator. Ka'ida ita ce canza rabon hasken s da hasken p a cikin hasken polarized ta hanyar jujjuya farantin rabin igiyar ruwa, da raba hasken ta hanyar polarizer. Daga farkon daidaitawar da hannu zuwa na yau da kullun mai sarrafa kansa da inganci, nau'ikan samfuran sa da haɓaka aikace-aikacen sa sun balaga sosai.
2. Electro-optical makirci: Electro-optical intensity modulator na iya canza ƙarfin ko girman haske na polarized, ƙa'idar ta dogara ne akan tasirin Pockels na lu'ulu'u na electro-optical. Yanayin polarization na katako na polarized yana canzawa bayan an yi amfani da kristal na electro-optic tare da filin lantarki, sa'an nan kuma ana zabar polarization ta hanyar polarizer. Ana iya sarrafa ƙarfin hasken da aka fitar ta hanyar canza ƙarfin wutar lantarki, kuma ana iya kaiwa ga hawan / faɗuwar girman ns.
3. Makirci-na gani: Acousto-optic modulator kuma ana iya amfani da shi azaman na'urar motsa jiki mai ƙarfi. Ta hanyar canza haɓakar haɓakawa, ana iya sarrafa ikon 0 haske da haske 1 don cimma manufar daidaita ƙarfin hasken. Ƙofar Acoustooptic (attenuator na gani) yana da halaye na saurin daidaitawa da saurin lalacewa.
4 Liquid crystal bayani: ruwa crystal na'urar ne sau da yawa amfani da matsayin m kalaman farantin ko tunable tace, ta amfani da wani drive ƙarfin lantarki a duka iyakar da ruwa crystal akwatin don ƙara daidai polarization kashi, za a iya sanya a cikin wani ruwa crystal rufe ko m attenuator, samfurin yana da babban budewa ta hanyar haske, high aminci halaye.
Lokacin aikawa: Fabrairu-18-2025