I-Laser Dynamics isho ukuvela kwenani elithile lama-lasers ngokuhamba kwesikhathi, njengamandla okubona kanye nokuzuza.
Ukuziphatha okuguquguqukayo kwelaser kunqunywa ukusebenzisana phakathi kwenkambu ye-optical ku-cavity kanye nendawo yokuzuza. Ngokuvamile, amandla e-laser azohluka ngomehluko phakathi kwenzuzo kanye ne-resonant cavity, futhi izinga lokushintsha kwenzuzo linqunywa inqubo yokukhishwa okukhuthazwayo kanye nokukhishwa okuzenzakalelayo (kungase futhi kunqunywe umphumela wokucisha kanye inqubo yokudlulisa amandla).
Ezinye izilinganiso ezithile ziyasetshenziswa. Isibonelo, inzuzo ye-laser ayiphezulu kakhulu. Kulaser ekhanyayo eqhubekayo, ubudlelwane phakathi kwamandla e-laser P kanye ne-coefficient yenzuzo g ku-cavity yanelisa i-equation ehlanganisayo ehlanganisayo elandelayo:
Kuphi TR isikhathi esidingekayo sohambo olulodwa lokuya nokubuya emgodini, l ukulahleka komgodi, gss ukuzuza kwesignali encane (ngesilinganiso sepompo esinikeziwe), τg isikhathi sokuphumula senzuzo (imvamisa eduze nesikhathi sokuphila sesimo samandla esiphezulu), futhi Esat kuyinto twagcwalisa amandla okumunca we-revenue medium.
Kuma-laser wamagagasi aqhubekayo, amandla aguquguqukayo athinteka kakhulu wukuziphatha kokushintsha kwe-laser (ngokuvamile okuhlanganisa ukwakheka kwama-spikes amandla okukhiphayo) kanye nesimo sokusebenza lapho kukhona ukuphazamiseka ohlelweni lokusebenza (imvamisa i-oscillation yokuphumula). Kulezi zici, izinhlobo ezahlukene zamalaser zinendlela yokuziphatha ehluke kakhulu.
Isibonelo, ama-laser e-doped insulator athambekele ekubeni nezipikili kanye nama-oscillation okuphumula, kodwa ama-laser diode awanjalo. Ku-laser eshintshwayo ye-Q, ukuziphatha okuguquguqukayo kubaluleke kakhulu, lapho amandla agcinwe endaweni yokuzuza azoshintsha kakhulu lapho i-pulse ikhishwa. Ama-laser e-fiber ashintshiwe nge-Q ngokuvamile anezinzuzo eziphezulu kakhulu, futhi kukhona ezinye izenzakalo eziguqukayo. Ngokuvamile kubangela ukushaya kwenhliziyo ukuthi kube nezigatshana ezithile esizindeni sesikhathi, ezingaba ingachazwa yile zibalo ezingenhla.
I-equation efanayo ingasetshenziswa futhi kuma-lasers akhiyiwe wemodi yokwenziwa; bese isibalo sokuqala sidinga ukwengeza ithemu eyengeziwe ukuchaza ukulahlekelwa kwesibambisi esigcwalayo. Umphumela walo mphumela wukuthi ukuncishiswa kwe-oscillation yokuphumula kuncishisiwe. Inqubo ye-relaxation oscillation ayinciphisi nakancane, ngakho-ke isisombululo sesimo esiqinile asisakwazi ukuzinza, futhi i-laserabanye ukungazinzi kwe Ukukhiya imodi yokushintsha u-Q noma ezinye izinhlobo ze-Q-switching.
Isikhathi sokuthumela: Aug-10-2021