I-optical frequency comb yi-spectrum eyenziwe ngothotho lwamacandelo aphindaphindiweyo alinganayo kwi-spectrum, enokuthi iveliswe nge-laser evaliweyo, ii-resonators, okanyeiimodyuli ze-electro-optical.I-Optical frequency cobs eyenziwe nguiimodyuli ze-electro-opticzineempawu zokuphindaphinda amaza, ukomisa kwangaphakathi kunye namandla aphezulu, njl. njl., ezisetyenziswa ngokubanzi kuhlengahlengiso lwesixhobo, i-spectroscopy, okanye i-fundamental physics, kwaye zitsale umdla wabaphandi ngakumbi nangakumbi kwiminyaka yakutshanje.
Kutshanje, u-Alexandre Parriaux kunye nabanye abavela kwiDyunivesithi yaseBurgendi eFransi bapapashe iphepha lophononongo kwijenali i-Advances in Optics kunye neFotonics, besazisa ngokucwangcisiweyo inkqubela yophando yamva nje kunye nokusetyenziswa kwe-optical frequency combs eyenziwe ngu.ukumodareyitha kwe-electro-optical: Ibandakanya ukwazisa i-optical frequency comb, indlela kunye neempawu ze-optical frequency comb eyenziwe ngu.imodyuli ye-electro-optic, kwaye ekugqibeleni ibala iimeko zesicelo zeimodyuli ye-electro-optici-optical frequency comb ngokweenkcukacha, kubandakanywa ukusetyenziswa kwe-spectrum echanekileyo, ukuphazamiseka kwe-optical comb kabini, ukulinganiswa kwesixhobo kunye nokuveliswa kwe-wave wave, kwaye ixoxa ngomgaqo osemva kwezicelo ezahlukeneyo.Okokugqibela, umbhali unika ithemba letekhnoloji ye-electro-optic modulator optical frequency comb.
01 Imvelaphi
Kwakuyiminyaka engama-60 eyadlulayo kule nyanga apho uGqr. Maiman wenza i-laser yokuqala yerubhi.Kwiminyaka emine emva koko, iHargrove, Fock kunye nePollack yeBell Laboratories eUnited States yaba ngabokuqala ukuchaza indlela esebenzayo yokutshixa efunyenwe kwi-helium-neon lasers, imowudi yokutshixa i-laser kwisizinda sexesha imelwe njengokuphuma kwepulse, kwi-frequency domain luluhlu lwemigca emifutshane ecacileyo kunye ne-equidistant, efana kakhulu nokusetyenziswa kwethu kwemihla ngemihla kwee-combs, ngoko ke sibiza le spectrum "i-optical frequency comb".Kubhekiselwa kuyo njenge "optic frequency comb".
Ngenxa yethemba elihle lokusebenzisa i-optical comb, iBhaso leNobel kwiFiziksi ngo-2005 lawongwa uHansch noHall, abathe benza umsebenzi wobuvulindlela kubuchwephesha bekama optical, ukusukela ngoko, uphuhliso lwekama lokukhanya lufikelele kwinqanaba elitsha.Ngenxa yokuba izicelo ezahlukeneyo zineemfuno ezahlukeneyo zecombs zamehlo, njengamandla, isithuba somgca kunye nobude obuphakathi, oku kukhokelele kwimfuno yokusebenzisa iindlela ezahlukeneyo zokulinga ukuvelisa i-optical cobs, efana nemode-locked lasers, micro-resonators kunye ne-electro-optical. imodyuli.
IKHIWANE.I-1 Ixesha le-domain spectrum kunye ne-frequency domain spectrum ye-optical frequency comb
Umthombo womfanekiso: I-Electro-optic frequency cobs
Ukusukela oko kwafunyaniswa i-optical frequency combs, uninzi lwe-optical frequency combs luye lwaveliswa kusetyenziswa iimode-locked lasers.Kwimowudi ye-laser evaliweyo, i-cavity enexesha lokuya nokubuya kwe-τ isetyenziselwa ukulungisa ubudlelwane besigaba phakathi kweendlela ze-longitudinal, ukuze kumiselwe izinga lokuphindaphinda kwe-laser, enokuthi ngokubanzi isuka kwi-megahertz (MHz) ukuya kwi-gigahertz ( GHz).
I-optical frequency comb eyenziwa yi-micro-resonator isekelwe kwimiphumo engahambelaniyo, kwaye ixesha lokuya nokubuya lichongwa bubude be-micro-cavity, kuba ubude be-micro-cavity bungaphantsi kwe-1mm, i-optical frequency. Ikama eveliswa yi-micro-cavity idla ngokuba yi-10 gigahertz ukuya kwi-1 terahertz.Kukho iintlobo ezintathu eziqhelekileyo ze-microcavities, i-microtubules, i-microspheres kunye ne-microrings.Ukusebenzisa imiphumo engabonakaliyo kwimicu ye-optical fibers, njenge-Brillouin yokusabalalisa okanye i-wave-wave mixing, idibaniswe ne-microcavities, i-optical frequency combs kwi-nanometers yamashumi ububanzi inokuveliswa.Ukongeza, ii-combs ze-optical frequency nazo zinokuveliswa ngokusebenzisa ezinye iimodyuli ze-acousto-optic.
Ixesha lokuposa: Dec-18-2023