Zaɓin tushen laser mai kyau: laser semiconductor emission laser Kashi na Ɗaya

Zaɓin manufatushen laserBayani: Laser semiconductor emission laser
1. Gabatarwa
Laser na SemiconductorAn raba kwakwalwan kwamfuta zuwa kwakwalwan laser masu fitar da gefen (EEL) da kwakwalwan laser masu fitar da saman ramin tsaye (VCSEL) bisa ga tsarin masana'antu daban-daban na masu amsawa, kuma an nuna takamaiman bambance-bambancen tsarin su a Hoto na 1. Idan aka kwatanta da laser mai fitar da saman ramin tsaye, ci gaban fasahar laser mai fitar da gefen semiconductor ya fi girma, tare da kewayon tsayi mai faɗi, mai girma.na'urar lantarkiIngancin juyawa, babban iko da sauran fa'idodi, sun dace sosai da sarrafa laser, sadarwa ta gani da sauran fannoni. A halin yanzu, lasers na semiconductor masu fitar da gefuna muhimmin bangare ne na masana'antar optoelectronics, kuma aikace-aikacensu sun shafi masana'antu, sadarwa, kimiyya, mabukaci, soja da sararin samaniya. Tare da ci gaban fasaha da ci gabanta, an inganta wutar lantarki, aminci da ingancin canza makamashi na lasers na semiconductor masu fitar da gefuna, kuma damar amfani da su ta karu sosai.
Na gaba, zan jagorance ku don ƙara godiya ga kyawun musamman na fitar da kayan gefeLasers na semiconductor.

Hoto na 1 (hagu) na laser mai fitar da semiconductor da kuma (dama) na saman rami mai fitar da laser mai fitar da rami a tsaye

2. Ka'idar aiki na semiconductor mai fitar da iskar gaslaser
Tsarin laser mai fitar da gefen za a iya raba shi zuwa sassa uku masu zuwa: yankin aiki na semiconductor, tushen famfo da kuma resonator na gani. Ba kamar resonators na lasers na saman rami a tsaye ba (wanda ya ƙunshi madubai na Bragg na sama da na ƙasa), resonators a cikin na'urorin laser na semiconductor masu fitar da gefen an haɗa su ne da fina-finai na gani a ɓangarorin biyu. Tsarin na'urar EEL da tsarin resonator na yau da kullun an nuna su a Hoto na 2. Ana ƙara photon a cikin na'urar laser na semiconductor mai fitar da gefen ta hanyar zaɓin yanayi a cikin resonator, kuma ana samar da laser a cikin alkiblar da ke daidai da saman substrate. Na'urorin laser na semiconductor masu fitar da gefen suna da kewayon tsawon aiki mai yawa kuma sun dace da aikace-aikace da yawa na aiki, don haka suna zama ɗaya daga cikin tushen laser mafi kyau.

Ma'aunin kimanta aiki na lasers masu fitar da gefen gefe suma sun yi daidai da sauran lasers na semiconductor, waɗanda suka haɗa da: (1) tsawon laser na laser; (2) Matsakaicin halin yanzu Ith, wato, halin yanzu wanda diode na laser ya fara samar da juyawar laser; (3) Iop na aiki, wato, yanayin tuƙi lokacin da diode na laser ya kai ga ƙimar ƙarfin fitarwa, ana amfani da wannan siga ga ƙira da daidaitawa na da'irar tuƙi na laser; (4) Ingancin gangara; (5) Bambancin tsaye Kusurwoyi θ⊥; (6) Bambancin kwance Kusurwoyi θ∥; (7) Kula da Im na yanzu, wato, girman halin yanzu na guntu na semiconductor na laser a ƙarfin fitarwa mai ƙima.

3. Ci gaban bincike na GaAs da lasers masu fitar da semiconductor bisa tushen GaN
Laser ɗin semiconductor wanda aka gina bisa kayan semiconductor na GaAs yana ɗaya daga cikin fasahar laser mafi tsufa na semiconductor. A halin yanzu, ana amfani da lasers na semiconductor masu fitar da gefuna na GAAS (760-1060 nm) a fannin kasuwanci sosai. A matsayin kayan semiconductor na ƙarni na uku bayan Si da GaAs, GaN ta damu sosai a binciken kimiyya da masana'antu saboda kyawawan halayenta na zahiri da na sinadarai. Tare da haɓaka na'urorin optoelectronic na GAN da ƙoƙarin masu bincike, diodes masu fitar da haske da lasers masu fitar da gefuna sun zama masana'antu.