Unxibelelwano lwequantum:iilaser zobubanzi obumxinwa
Ilaser yobubanzi obumxinwaluhlobo lwe-laser oluneempawu ezikhethekileyo ze-optical, ezibonakaliswe ngokukwazi ukuvelisa i-laser beam kunye ne-linewidth encinci ye-optical (oko kukuthi, i-spectrum emxinwa). Ububanzi bomgca we-laser yobubanzi obunqamlekileyo bubhekisela kububanzi be-spectrum yayo, ngokuqhelekileyo ibonakaliswe kwi-bandwidth ngaphakathi kweyunithi frequency, kwaye obu bubanzi buyaziwa nangokuthi "ububanzi bomgca we-spectral" okanye ngokulula "ububanzi bomgca". Iilaser zobubanzi obumxinwa ezinobubanzi bomgca omxinwa, ngokuqhelekileyo phakathi kwamakhulu ambalwa e-kilohertz (kHz) kunye neemegahertz ezimbalwa (MHz), encinane kakhulu kunobubanzi bomgca we-spectral beelases eziqhelekileyo.
Ukuhlelwa ngokwesakhiwo somgodi:
1. I-laser ye-fiber fiber lasers yahlulwe yaba yi-Bragg reflection type (DBR Laser) kunye nohlobo lwempendulo (DFB Laser) izakhiwo ezibini. I-laser ephumayo yazo zombini ii-lases kukukhanya okuhambelana kakhulu kunye nobubanzi obumxinwa kunye nengxolo ephantsi. I-DFB ifayibha laser inokufezekisa zombini ingxelo yelaser kunyelaserukhetho lwemowudi, ngoko uzinzo lwe-laser frequency lulungile, kwaye kulula ukufumana imveliso ezinzileyo yemowudi enye yobude.
2. I-laser ye-ring-cavity fibre lasers ikhupha i-laser-width-width lasers ngokuzisa izihlungi ze-band-band ezifana ne-Fabry-Perot (FP) i-interference cavities, i-fiber grating okanye i-sagnac ring cavities kwi-cavity. Nangona kunjalo, ngenxa yobude bombhobho omde, isithuba semowudi yobude buncinci, kwaye kulula ukutsiba imowudi phantsi kweempembelelo zokusingqongileyo, kwaye uzinzo alulunganga.
Isicelo seMveliso:
1. I-Optical sensor I-laser-width-width laser njengomthombo wokukhanya ofanelekileyo we-fiber optical sensors, ngokudibanisa ne-fiber optical sensors, inokufikelela kwi-high-precision, i-high-sensitivity measurement. Ngokomzekelo, kuxinzelelo okanye iqondo lokushisa i-fiber optic sensors, ukuzinza kwe-laser ye-linewidth encinci inceda ukuqinisekisa ukuchaneka kweziphumo zokulinganisa.
2. Umlinganiselo obonakeleyo onesombululo esiphakamileyo Iilaser ezinobubanzi obumxinwa bomgca wobubanzi obunobubanzi obumxinwa kakhulu, zibenza babe yimithombo efanelekileyo yeespectrometers ezinokulungiswa okuphezulu. Ngokukhetha ubude obuchanekileyo kunye nobubanzi bomgca, i-laser yobubanzi obunqamlekileyo ingasetyenziselwa uhlalutyo oluchanekileyo lwe-spectral kunye nokulinganisa okubonakalayo. Ngokomzekelo, kwii-sensors zegesi kunye nokubeka iliso kokusingqongileyo, i-laser ye-linewidth emxinwa ingasetyenziselwa ukufikelela kwimilinganiselo echanekileyo ye-optical absorption, i-optical emission kunye ne-molecular spectra emoyeni.
3. I-Lidar enye-frequency emxinwa yomgca-ububanzi be-fiber lasers nayo inezicelo ezibaluleke kakhulu kwiinkqubo ze-liDAR okanye i-laser. Ukusebenzisa i-fiber laser ye-frequency enye emxinwa yomgca we-fiber njengomthombo wokukhanya wokubona, udityaniswe nokubona ukuhambelana kwe-optical, inokwakha umgama omde (amakhulu eekhilomitha) i-liDAR okanye i-rangefinder. Lo mgaqo unomgaqo ofanayo wokusebenza njengeteknoloji ye-OFDR kwifiber ebonakalayo, ngoko ke ayinaso isisombululo esiphezulu kakhulu, kodwa inokunyusa umgama wokulinganisa. Kule nkqubo, ububanzi bomgca we-laser spectral okanye ubude bokuhambelana bumisela uluhlu lokulinganisa umgama kunye nokuchaneka komlinganiselo, ngoko ke ukuhambelana komthombo wokukhanya, kuphezulu ukusebenza kwenkqubo yonke.
Ixesha lokuposa: Apr-14-2025