Ukuncitshiswa kweububanzi bomgca weleza
Ububanzi bomgca welaser bunxulumene ngokuthe ngqo nohlobo lwelaser. Ububanzi bomgca welaser bunokunciphisa ngokuphucula uyilo lwelaser kunye nokunciphisa impembelelo yengxolo yangaphandle kangangoko kunokwenzeka. Inyathelo lokuqala kukufumanisa ukuba yeyiphi elawulayo, ingxolo ye-quantum okanye ingxolo yakudala, njengoko oku kuya kuchaphazela ukulinganisa okulandelayo.
Xa amandla e-intracavity ephezulu, ukulahleka kwe-resonator kuphantsi kwaye ixesha lokuya nokubuya le-resonator lide, ingxolo ye-quantum yeileza(ingxolo yokukhupha umoya ngokuzenzekela) inempembelelo encinci kakhulu. Ingxolo yesiqhelo inokubangelwa kukuqhekeka koomatshini. Ukuguquguquka kunokuncitshiswa ngokusebenzisa i-resonator ye-laser emfutshane encinci, kodwa ngamanye amaxesha kwi-resonator ezimfutshane, ukuguquguquka kobude kunokuvelisa isiphumo esinamandla ngakumbi. Uyilo olufanelekileyo loomatshini lunokunciphisa ukudibana phakathi kwe-resonator ye-laser kunye nemitha yangaphandle, kwaye lunciphise nesiphumo sokushukuma kobushushu. Kukwakho nokuguquguquka kobushushu kwi-gain medium, okubangelwa kukuguquguquka kwamandla epompo.
Ukuze kubekho ingxolo engcono, kufuneka kusetyenziswe ezinye izixhobo zokuzinzisa ezisebenzayo, kodwa kungcono ukuqala usebenzise iindlela ezisebenzayo ezingashukumiyo. Ububanzi bomgca we-single-frequency solid-state laser kunyei-laser yefayibhayi-kilohertz eliqela, kwaye ngamanye amaxesha ingaphantsi kwe-1KHz. Ngokusebenzisa indlela yokuzinzisa esebenzayo, ububanzi bomgca obungaphantsi kwe-1KHz bungafunyanwa. Ububanzi bomgca wee-diode ze-laser buhlala bukwi-MHZ kwaye bunokwehliswa bube yi-KHz, njengakwi-laser ze-diode ze-cavity yangaphandle, ngakumbi kwii-diode ze-optical feedback ezine-cavity yereferensi echanekileyo.
Kubalulekile ukuqaphela ukuba kwezinye iimeko,umthombo wokukhanya nge-laserayifuneki ukuvelisa ububanzi bokukhanya obuncinci kakhulu:
1. Xa ubude bokuhambelana bubude, isiphumo sokuhambelana (ngenxa yokubonakaliswa okubuthathaka kwe-parasitic) siya kuphazamisa imo yokukhanya. Kwimiboniso ye-laser projection, isiphumo se-speckle sinokuphazamisa umgangatho womphezulu wokubuya.
2. Xa ukukhanya kudluliselwa kwiifayibha ze-optical ezisebenzayo okanye ezingasebenziyo, ububanzi bemigca emincinci bubangela iingxaki ezithile ngenxa yokusasazeka kweBrillouin okukhuthazwayo. Kule ndawo, ububanzi bomgca kufuneka bunyuswe, umzekelo, ngokuguqula i-laser diode nge-current okanye ukusebenzisa i-optical modulator ukuze ijike ngokukhawuleza i-instantaneous frequency. Ububanzi bomgca busetyenziswa kwezinye iimeko. Ububanzi bomgca bukwasetyenziswa ukuchaza ububanzi bokubola kwe-optical.
Ixesha leposi: Disemba-09-2025