Nhanganyaya kune Edge Emitting Laser (EEL)

Nhanganyaya kune Edge Emitting Laser (EEL)
Kuti uwane yakakwira-simba semiconductor laser kubuda, tekinoroji iripo ndeye kushandisa edge emission chimiro. Iyo resonator ye edge-emitting semiconductor laser inoumbwa neakasikwa dissociation pamusoro peiyo semiconductor crystal, uye danda rekubuda rinoburitswa kubva kumberi kwekupedzisira kwelaser. inobuda nzvimbo ndeye elliptical, mhando yedanda haina kunaka, uye chimiro chedanda chinoda kugadziridzwa nehurongwa hwekuumba danda.
Dhiagiramu inotevera inoratidza chimiro che edge-emitting semiconductor laser. Iyo optical cavity yeEEL inofanana nepamusoro pe semiconductor chip uye inoburitsa laser kumucheto kweiyo semiconductor chip, iyo inogona kuona iyo laser kubuda nesimba rakakura, kumhanya kwakanyanya uye kuderera ruzha. Nekudaro, iyo laser beam inobuda neEEL kazhinji ine asymmetric beam muchinjiko chikamu uye yakakura angular divergence, uye kubatanidza kushanda zvakanaka nefiber kana zvimwe zvinhu zvemaziso zvakaderera.

Kuwedzera kweEEL kubuda simba kunogumira nemarara kupisa kuunganidza munzvimbo inoshanda uye kukuvadzwa kwemaziso pane semiconductor pamusoro. Nekuwedzera iyo waveguide nzvimbo yekudzikisa kupisa kupisa kuunganidzwa munharaunda inoshanda kuvandudza kupisa kwekupisa, kuwedzera nzvimbo yemwenje yekubuda kudzikisa iyo optical simba density yedanda kudzivirira kukuvadzwa kwemaziso, simba rekubuda rinosvika mazana akati wandei milliwatts anogona. kuwanikwa mune imwechete transverse mode waveguide chimiro.
Kune iyo 100mm waveguide, imwe chete kumucheto-emitting laser inogona kuwana makumi emawatts emagetsi ekubuda, asi panguva ino waveguide yakanyanya kuwanda-modhi mundege yechip, uye inobuda danda reshiyo rinosvikawo 100: 1, zvinoda danda rakaoma kugadzira system.
Pafungidziro yekuti hapana hutsva hutsva muhunyanzvi hwekuita uye epitaxial kukura tekinoroji, nzira huru yekuvandudza simba rekubuda reimwe semiconductor laser chip ndeyekuwedzera hupamhi hwetambo yenzvimbo inopenya yechip. Nekudaro, kuwedzera hupamhi hwekureba zvakanyanya kuri nyore kugadzira transverse yakakwira-odha modhi oscillation uye filamentlike oscillation, iyo inoderedza zvakanyanya kufanana kwekubuda kwechiedza, uye simba rekubuda hariwedzere zvakaenzana nehupamhi hwetambo, saka simba rekubuda re chip chimwechete chakaganhurwa zvakanyanya. Kuti uvandudze zvakanyanya simba rekubuda, array tekinoroji inovapo. Iyo tekinoroji inosanganisa akawanda laser mayunitsi pane imwechete substrate, kuitira kuti mwenje wega wega unoburitsa mwenje unomisikidzwa seimwe-dimensional array muanonokera axis gwara, chero bedzi tekinoroji yekuzviparadzanisa nevamwe ichishandiswa kupatsanura chimwe nechimwe chinoburitsa mwenje muhurongwa. , kuitira kuti zvirege kupindirana, zvichiita kuti pave ne-multi-aperture lasing, unogona kuwedzera simba rekubuda kwechiputi rose nekuwedzera nhamba yekubatanidza magetsi ekubudisa mayuniti. Iyi semiconductor laser chip is semiconductor laser array (LDA) chip, inozivikanwawo semiconductor laser bar.