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 okuphindaphindiweyo, 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 kamva, iHargrove, Fock kunye nePollack yeBell Laboratories e-United States yaba ngabokuqala ukuchaza indlela esebenzayo yokutshixa efunyenwe kwi-helium-neon lasers, imowudi yokutshixa i-laser kwidomeyini yexesha imelwe njengokuphuma kwe-pulse, kwisizinda samaza maninzi luthotho lwemigca emifutshane ecacileyo kunye elinganayo, efana kakhulu nolu hlobo lwe-combs yemihla ngemihla. Ibizwa ngokuba yi "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 ze-optical cobs, ezifana namandla, isithuba somgca kunye ne-wavelength ephakathi, oku kukhokelele kwisidingo sokusebenzisa iindlela ezahlukeneyo zokulinga ukuvelisa i-optical cobs, njenge-mode-locked lasers, i-micro-resonators kunye ne-electro-optical modulator.
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 ii-laser ezitshixwayo. Kwimowudi-itshixiwe lasers, umngxuma kunye nexesha lokuya nokubuya τ isetyenziselwa ukulungisa ubudlelwane besigaba phakathi kweendlela ze-longitudinal, ukuze kuqinisekiswe izinga lokuphindaphinda kwelaser, enokuthi ngokubanzi isuka kwi-megahertz (MHz) ukuya kwi-gigahertz (GHz).
I-optical frequency comb eyenziwa yi-micro-resonator isekelwe kwimiphumo engahambelaniyo, kwaye ixesha lokujikeleza linqunywe ubude be-micro-cavity, kuba ubude be-micro-cavity ngokuqhelekileyo bungaphantsi kwe-1mm, i-optical frequency comb eyenziwa yi-micro-cavity ngokubanzi i-gigahertz eyi-10 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 zeacousto-optic.
Ixesha lokuposa: Dec-18-2023