Nhanganyaya kuEdge Emitting Laser (EEL)

Nhanganyaya kuEdge Emitting Laser (EEL)
Kuti tiwane simba guru rekushandisa laser ye semiconductor, tekinoroji iripo ndeyekushandisa chimiro che edge emission. Resonator ye edge-emitting semiconductor laser inoumbwa ne natural dissociation surface ye semiconductor crystal, uye output beam inoburitswa kubva kumberi kwe laser. Edge-emission type semiconductor laser inogona kuwana high power output, asi output spot yayo yakatenderera, beam quality haina kunaka, uye beam shape shape inoda kugadziriswa ne beam shaping system.
Dhayagiramu inotevera inoratidza chimiro chelaser ye semiconductor inoburitsa maedge. Mhara ye optical yeEEL yakafanana nepamusoro pe semiconductor chip uye inoburitsa laser pamucheto we semiconductor chip, iyo inogona kuburitsa laser nesimba guru, kumhanya kwakanyanya uye ruzha rwakaderera. Zvisinei, kubuda kwe laser beam neEEL kunowanzova ne asymmetric beam cross section uye large angular divergence, uye coupling efficiency ne fiber kana zvimwe zvikamu zve optical yakaderera.

Kuwedzera kwesimba rinobuda muEEL kunogumira pakuunganidzwa kwekupisa kwemarara munzvimbo inoshanda uye kukuvara kwemaziso pamusoro pe semiconductor. Nekuwedzera nzvimbo ye waveguide kuderedza kuunganidzwa kwekupisa kwemarara munzvimbo inoshanda kuti kunatsiridze kupisa, kuwedzera nzvimbo inobuda chiedza kuti kuderedze huwandu hwesimba re optical remwaranzi kudzivirira kukuvara kwemaziso, simba rinobuda rinosvika mazana akati wandei e milliwatts rinogona kuwanikwa mu single transverse mode waveguide structure.
Kune 100mm waveguide, laser imwe chete inoburitsa maedge inogona kuwana makumi ema watts esimba rekuburitsa, asi panguva ino waveguide ine maitiro akawanda kwazvo padanho rechip, uye chiyero chebeam rekuburitsa chinosvikawo pa100:1, zvichida sisitimu yakaoma yekugadzira beam.
Panyaya yekuti hapana kufambira mberi kutsva muhunyanzvi hwezvinhu uye tekinoroji yekukura kwe epitaxial, nzira huru yekuvandudza simba rekubuda kwe single semiconductor laser chip ndeyekuwedzera upamhi hwestrip yenzvimbo inopenya ye chip. Zvisinei, kuwedzera upamhi hwestrip hwakanyanya kuri nyore kugadzira transverse high-order mode oscillation uye filamentlike oscillation, izvo zvinoderedza zvakanyanya kufanana kwekubuda kwechiedza, uye simba rekubuda hariwedzere zvakaenzana nehupamhi hwestrip, saka simba rekubuda re single chip rakaganhurirwa zvakanyanya. Kuti uvandudze zvakanyanya simba rekubuda, tekinoroji yearray inotanga kuvepo. Iyi tekinoroji inobatanidza mayuniti elaser akawanda pane substrate imwe chete, kuitira kuti unit yega yega inoburitsa chiedza irongedzwe se one-dimensional array munzira inononoka ye axis, chero bedzi tekinoroji ye optical isolation ichishandiswa kuparadzanisa unit yega yega inoburitsa chiedza mu array, kuitira kuti isapindirane, ichigadzira multi-aperture lasing, unogona kuwedzera simba rekubuda kwe chip yese nekuwedzera huwandu hwemayuniti emagetsi akabatanidzwa. Chipu iyi ye semiconductor laser ipu ye semiconductor laser array (LDA), inozivikanwawo se semiconductor laser bar.