Kuyini “okukhazimula okukhuluumthombo wokukhanya“?Kungakanani okwaziyo ngakho?Ngethemba ukuthi ungalubheka kahle ulwazi oluncane lwe-photoelectric olulethwe kuwe!
Umthombo wokukhanya we-Superradiant (owaziwa nangokuthiUmthombo wokukhanya we-ASE) iwumthombo wokukhanya kwe-broadband (umthombo wokukhanya okumhlophe) osuselwe ku-superradiation.(Ngokuvamile kubizwe ngephutha umthombo ongaphezu kokukhanya, okusekelwe esenzakalweni esihlukile esibizwa ngokuthi i-superfluorescence.) Ngokuvamile, umthombo wokukhanya ophakeme kakhulu uqukethe i-laser gain medium ekhipha ukukhanya ngemva kwesasasa bese iwukhulisa ukuze ukhiphe ukukhanya.
Imithombo ye-Superradiant inokuhambisana kwesikhashana okuphansi kakhulu ngenxa yomkhawulokudonsa wayo omkhulu wemisebe (uma kuqhathaniswa nama-lasers).Lokhu kunciphisa kakhulu amathuba okuba namachashaza okukhanya, avame ukubonakala emisebe ye-laser.Kodwa-ke, ukuhambisana kwayo kwendawo kuphakeme kakhulu, futhi ukukhanya okuphumayo komthombo wokukhanya we-ultra-radiant kungagxilwa kahle (okufana ne-laser beam), ngakho ukukhanya kokukhanya kuphakeme kakhulu kunesibani se-incandescent.
Iwumthombo wokukhanya ohambisanayo we-optical ofaneleka kakhulu (OpticalCoherenceTomography, OCT), ukuhlaziya izici zedivayisi () ekuxhumaneni kwe-fiber optical, inzwa ye-gyro ne-optical fibre.Bona ama-diode e-superemitting ukuze uthole izinhlelo zokusebenza ezinemininingwane eyengeziwe.
Omunye wemithombo eyinhloko yokukhanya kwemisebe ye-ultra radiation diode (Superluminescent DiodesI-SLD laser) kanye ne-optical fibre amplifier.Imithombo yokukhanya esuselwe ku-fibre inamandla okukhipha aphezulu, kuyilapho i-SLD mincane futhi ibiza kancane.Kokubili kunomkhawulokudonsa wemisebe okungenani wama-nanometer ambalwa namashumi ama-nanometer, futhi ngezinye izikhathi ngisho nangaphezu kwama-nanometer ayi-100.
Kuyo yonke imithombo yokukhanya ye-ASE enenzuzo ephezulu, impendulo ye-optical (isb, ukuboniswa okuvela ezimbotsheni zefayibha) idinga ukucindezelwa ngokucophelela, ngakho idala umphumela we-laser oyisinanakazana.Ngobaamadivaysi e-fiber optical, I-Rayleigh ihlakaza ngaphakathi kwe-fiber optical izothinta inkomba yokugcina yokusebenza.
Umfanekiso 1: I-spectrum ye-ASE ekhiqizwe i-fiber amplifier ibalwa njengejika emandleni epompo ahlukene.Njengoba amandla enyuka, i-spectrum iqhubekela kubude beza obufushane (inzuzo ikhula ngokushesha) kanye nomugqa we-spectral Uya Narrows.Ukushintsha i-wavelength kuvamile kumidiya yenzuzo yeleveli elingana nantathu, kuyilapho ukuncishiswa komugqa kwenzeka cishe kuyo yonke imithombo ekhanyayo.
Isikhathi sokuthumela: Sep-06-2023