Optical zaus zuag yog ib qho spectrum tsim los ntawm cov khoom sib npaug sib npaug ntawm cov spectrum, uas tuaj yeem tsim los ntawm hom-xauv lasers, resonators, lossiselectro-optical modulators. Optical zaus combs generated los ntawmelectro-optic modulatorsmuaj cov yam ntxwv ntawm ntau zaus repetition, nrog interdrying thiab siab zog, thiab lwm yam., uas yog dav siv nyob rau hauv ntsuas ntsuas, spectroscopy, los yog lub hauv paus physics, thiab tau nyiam ntau thiab ntau cov neeg soj ntsuam cov kev txaus siab nyob rau hauv xyoo tas los no.
Tsis ntev los no, Alexandre Parriaux thiab lwm tus los ntawm University of Burgendi hauv Fab Kis tau luam tawm cov ntawv tshuaj xyuas hauv phau ntawv Journal Advances in Optics thiab Photonics, qhia txog qhov kev tshawb fawb tshiab tshaj plaws thiab kev siv cov khoom siv kho qhov muag uas tsim los ntawmelectro-optical modulation: Nws suav nrog kev taw qhia ntawm optical zaus zuag, txoj kev thiab cov yam ntxwv ntawm optical zaus zuag generated los ntawmelectro-optic modulator, thiab thaum kawg enumerates daim ntawv thov scenarios ntawmelectro-optic modulatorkho qhov muag zaus zuag hauv kev nthuav dav, suav nrog kev thov ntawm precision spectrum, ob chav kho qhov muag comb cuam tshuam, ntsuas ntsuas ntsuas thiab tsim cov qauv waveform, thiab sib tham txog lub hauv paus ntsiab lus tom qab siv sib txawv. Thaum kawg, tus sau muab lub zeem muag ntawm electro-optic modulator optical zaus zuag tshuab.
01 Keeb kwm
Nws yog 60 xyoo dhau los lub hlis no uas Dr. Maiman tau tsim thawj ruby laser. Plaub xyoos tom qab ntawd, Hargrove, Fock thiab Pollack ntawm Tswb Laboratories hauv Tebchaws Meskas yog thawj zaug qhia txog kev ua haujlwm ntawm kev kaw haujlwm hauv helium-neon lasers, hom-locking laser spectrum nyob rau hauv lub sij hawm domain yog sawv cev raws li ib tug mem tes emission, nyob rau hauv lub zaus sau yog ib tug series ntawm discrete thiab equidistant luv kab, zoo ib yam li peb niaj hnub siv combs, yog li peb hu no spectrum "optical zaus zuag". Lub npe hu ua "optic zaus zuag".
Vim tias qhov kev thov zoo ntawm kev kho qhov muag zuag, Nobel nqi zog hauv Physics hauv 2005 tau muab tsub rau Hansch thiab Hall, uas tau ua haujlwm pioneering ntawm optical comb technology, txij thaum ntawd los, kev loj hlob ntawm optical comb tau mus txog theem tshiab. Vim tias cov ntawv thov sib txawv muaj cov kev xav tau sib txawv ntawm cov khoom siv kho qhov muag, xws li lub zog, kab sib nrug thiab nruab nrab lub voj voog, qhov no tau ua rau qhov yuav tsum tau siv cov kev sim sib txawv los tsim cov khoom siv kho qhov muag, xws li hom-locked lasers, micro-resonators thiab electro-optical. modulator.
FIG. 1 Lub Sijhawm domain spectrum thiab zaus domain spectrum ntawm optical zaus zuag
Duab qhov chaw: Electro-optic zaus combs
Txij li thaum nrhiav pom ntawm optical zaus combs, feem ntau optical zaus combs tau tsim siv hom-xauv lasers. Nyob rau hauv hom-locked lasers, ib kab noj hniav nrog ib puag ncig-trip lub sij hawm ntawm τ yog siv los kho cov theem kev sib raug zoo ntawm longitudinal hom, thiaj li mus txiav txim lub repetition tus nqi ntawm lub laser, uas feem ntau yog los ntawm megahertz (MHz) mus rau gigahertz ( GHz).
Optical zaus comb generated los ntawm micro-resonator yog raws li cov teebmeem nonlinear, thiab lub sijhawm ncig mus ncig yog txiav txim siab los ntawm qhov ntev ntawm micro-cavity, vim tias qhov ntev ntawm micro-cavity feem ntau tsawg dua 1 hli, qhov optical zaus. comb generated los ntawm micro-kab noj hniav feem ntau yog 10 gigahertz rau 1 terahertz. Muaj peb hom microcavities, microtubules, microspheres thiab microrings. Siv cov teebmeem nonlinear hauv optical fibers, xws li Brillouin scattering lossis plaub-yoj sib xyaw, ua ke nrog microcavities, optical zaus combs hauv kaum ntawm nanometers ntau yam tuaj yeem tsim tau. Tsis tas li ntawd, optical zaus combs kuj tuaj yeem tsim los ntawm kev siv qee qhov acousto-optic modulators.
Post lub sij hawm: Dec-18-2023