Zaɓin madaidaicin tushen Laser: gefen watsi semiconductor Laser Sashe na ɗaya

Zaɓin manufatushen laser: gefen watsi semiconductor Laser
1. Gabatarwa
Semiconductor Laserkwakwalwan kwamfuta sun kasu kashi-gefen emitting Laser kwakwalwan kwamfuta (EEL) da kuma a tsaye cavity surface emitting Laser kwakwalwan kwamfuta (VCSEL) bisa ga daban-daban masana'antu tafiyar matakai na resonators, kuma su takamaiman tsarin bambance-bambancen da aka nuna a cikin Hoto 1. Idan aka kwatanta da a tsaye rami surface emitting Laser, gefen gefe. emitting semiconductor Laser fasahar ci gaban ne mafi balagagge, tare da fadi da kewayon kalanda, highelectro-Opticalingantaccen juzu'i, babban iko da sauran fa'idodi, dacewa sosai don sarrafa laser, sadarwa na gani da sauran fannoni. A halin yanzu, laser semiconductor lasers wani muhimmin bangare ne na masana'antar optoelectronics, kuma aikace-aikacen su sun shafi masana'antu, sadarwa, kimiyya, mabukaci, soja da sararin samaniya. Tare da haɓakawa da ci gaban fasaha, ƙarfin, amintacce da ingantaccen canjin makamashi na lasers semiconductor lasers an inganta sosai, kuma buƙatun aikace-aikacen su sun fi yawa.
Na gaba, zan jagorance ku don ƙara godiya da fara'a na musamman na fitar da gefesemiconductor lasers.

Hoto 1 (hagu) gefen emitting semiconductor Laser da (dama) a tsaye kogon saman saman fidda tsarin tsarin Laser

2. Ƙa'idar aiki na semiconductor mai fitar da iskaLaser
Tsarin laser semiconductor Laser za a iya raba shi zuwa sassa uku masu zuwa: yanki mai aiki na semiconductor, tushen famfo da resonator na gani. Daban-daban daga resonators na a tsaye rami surface-emitting Laser (wanda aka hada da sama da kasa Bragg madubi), resonators a gefen-emitting semiconductor Laser na'urorin sun yafi hada da Tantancewar fina-finai a bangarorin biyu. Tsarin na'urar EEL na yau da kullun da tsarin resonator ana nuna su a cikin Hoto 2. Ana haɓaka photon a cikin na'urar laser semiconductor laser ta hanyar zaɓin yanayi a cikin resonator, kuma an kafa Laser a cikin shugabanci daidai da saman ƙasa. Edge-emitting semiconductor Laser na'urorin suna da fadi da kewayon aiki wavelengths kuma sun dace da yawa m aikace-aikace, don haka sun zama daya daga cikin manufa Laser kafofin.

Ma'auni na kimanta aikin na laser semiconductor lasers kuma sun yi daidai da sauran na'urori na semiconductor, ciki har da: (1) Lasing lasing wavelength; (2) Ƙaddamarwa na yanzu Ith, wato, halin yanzu wanda diode laser ya fara haifar da oscillation na laser; (3) Aiki na yanzu Iop, wato, tuƙi halin yanzu lokacin da Laser diode kai rated fitarwa ikon, wannan siga da ake amfani da zane da modulation na Laser drive kewaye; (4) Ingantaccen gangara; (5) Matsakaicin bambance-bambance a tsaye θ⊥; (6) Hannun rarrabuwar kai tsaye θ∥; (7) Saka idanu Im na yanzu, wato, girman na yanzu na guntu laser semiconductor a ƙimar fitarwa.

3. Ci gaban bincike na GaAs da GaN tushen gefuna masu fitar da laser semiconductor
Laser semiconductor bisa ga GaAs semiconductor abu shine ɗayan mafi balagagge fasahar Laser semiconductor. A halin yanzu, GAAS na tushen kusa-infrared band (760-1060 nm) gefen-emitting semiconductor lasers an yi amfani da ko'ina a kasuwanci. A matsayin kayan aikin semiconductor na ƙarni na uku bayan Si da GaAs, GaN ya damu sosai a cikin binciken kimiyya da masana'antu saboda kyawawan halayensa na zahiri da sinadarai. Tare da haɓaka na'urorin optoelectronic na tushen GAN da ƙoƙarin masu bincike, GAN-tushen haske mai fitar da diodes da Laser-etting sun kasance masana'antu.