Kuyini "okukhazimula kakhulu"umthombo wokukhanya"? Ukwazi okungakanani ngakho? Ngiyethemba ukuthi ungalubona kahle ulwazi lwe-photoelectric micro olulethwe kuwe!"
Umthombo wokukhanya okhanyayo kakhulu (owaziwa nangokuthiUmthombo wokukhanya we-ASE) umthombo wokukhanya we-broadband (umthombo wokukhanya omhlophe) osekelwe emisebeni ephezulu. (Ngokuvamile ubizwa ngephutha ngokuthi umthombo okhanyayo kakhulu, osekelwe entweni ehlukile ebizwa ngokuthi i-superfluorescence.) Ngokuvamile, umthombo wokukhanya okhanyayo kakhulu uqukethe i-laser gain medium ekhipha ukukhanya ngemva kokuvuselela bese ikukhulisa ukuze kukhishwe ukukhanya.
Imithombo ekhanyayo kakhulu inokuhambisana okuphansi kakhulu kwesikhathi ngenxa yobubanzi bayo obukhulu bemisebe (uma kuqhathaniswa nama-laser). Lokhu kunciphisa kakhulu amathuba okuba namabala okukhanya, avame ukubonakala emisebeni ye-laser. Kodwa-ke, ukuhambisana kwayo kwendawo kuphezulu kakhulu, futhi ukukhanya okuphumayo komthombo wokukhanya okhanyayo kakhulu kungagxila kahle (okufana nokukhanya kwe-laser), ngakho-ke ukuqina kokukhanya kuphakeme kakhulu kunokwesibani se-incandescent.
I-tomography yomthombo wokukhanya ohambisanayo we-optics (OpticalCoherenceTomography, OCT), ukuhlaziywa kwezimpawu zedivayisi () ekuxhumaneni kwe-optical fiber, i-gyro kanye ne-optical fiber sensor. Bheka ama-diode angaphezulu ukuze uthole izinhlelo zokusebenza ezinemininingwane eminingi.
Omunye wemithombo yokukhanya eyinhloko yemisebe ye-ultra radiation diode (i-Superluminescent Diodes)I-laser ye-SLD) kanye ne-optical fiber amplifier. Imithombo yokukhanya esekelwe ku-fiber inamandla aphezulu okukhipha, kuyilapho i-SLD incane futhi ingabizi kakhulu. Yomibili ine-bandwidth yemisebe okungenani ama-nanometer ambalwa kanye nama-nanometer angamashumi, futhi ngezinye izikhathi ingaphezu kwama-nanometer ayi-100.
Kuzo zonke izibani ze-ASE ezithola inzuzo ephezulu, impendulo ebonakalayo (isb., ukubonakaliswa okuvela kuma-fiber ports) idinga ukucindezelwa ngokucophelela, ngakho-ke kudala umphumela we-laser we-parasitic.amadivayisi e-optical fiber, Ukusabalala kwe-Rayleigh ngaphakathi kwe-optical fiber kuzothinta inkomba yokusebenza yokugcina.
Umfanekiso 1: I-ASE spectrum ekhiqizwa yi-fiber amplifier ibalwa njengejika emandleni ahlukene ephampu. Njengoba amandla enyuka, i-spectrum iya ku-wavelength emfushane (i-gain iyanda ngokushesha) kanye nomugqa we-spectral onciphile. Ukushintsha kwe-wavelength kuvamile kwimidiya ye-gain enamazinga amathathu, kuyilapho ukuncishiswa komugqa kwenzeka cishe kuyo yonke imithombo ekhanyayo kakhulu.
Isikhathi sokuthunyelwe: Septhemba-06-2023