VCSEL, yomwe imatchedwa kuti Vertical Cavity Surface Emitting Laser kwathunthu, ndi mtundu wa laser semiconductor. Pakalipano, ma VCSEL ambiri amachokera ku ma semiconductors a GaAs, ndipo kutalika kwa mafunde kumakhala mu bandi ya infrared wave.
Mu 1977, Pulofesa Ika Kenichi wa ku Tokyo University of Technology anayamba kupereka lingaliro la laser of the vertical-cavity surface-emitting laser. M'masiku oyambirira, iye makamaka ankafuna kupeza limodzi longitudinal mode semiconductor laser ndi khola linanena bungwe mwa kufupikitsa patsekeke kutalika. Komabe, chifukwa cha kutalika kwa njira imodzi yokha ya kapangidwe kameneka, zinali zovuta kupeza laser lasing, motero kafukufuku woyambirira wa VCSEL adatalikitsidwa. Zaka ziwiri pambuyo pake, Pulofesa Yihe Jianyi adazindikira bwino kutulutsa kwa ma lasers a GaInAsP pa 77 K pogwiritsa ntchito ukadaulo wamadzimadzi epitaxy (njira yamadzi-gawo epitaxy kutsitsa zinthu zolimba kuchokera ku yankho ndikuziyika pagawo lapansi kuti apange zigawo zoonda zamtundu umodzi. ). Mu 1988, ma GaAs angapo a VCSEL adakula ndi ukadaulo wa organic chemical vapor deposition (OCVD) kuti akwaniritse ntchito yopitilira kutentha. Ndi chitukuko chokhazikika chaukadaulo wa epitaxial, zida za semiconductor DBR zowoneka bwino zitha kupangidwa, zomwe zimafulumizitsa kwambiri kafukufuku wa VCSEL. Kumapeto kwa zaka za m'ma 1900, mabungwe ofufuza atayesa njira zosiyanasiyana, chikhalidwe cha VCSEL chochepa cha okosijeni chinali chokhazikika. Kenako idalowa m'gawo la kukhwima, pomwe magwiridwe antchito adakonzedwa ndikuwongolera.
Chithunzi cha gawo la oxidation limited top emitting laser
Dera logwira ntchito ndilofunika kwambiri pa chipangizocho. Chifukwa chitseko cha VCSEL ndi chachifupi kwambiri, sing'anga yogwira ntchito m'kati mwake imayenera kupereka chipukuta misozi chochulukirapo.
Choyamba, zinthu zitatu ziyenera kukwaniritsidwa nthawi imodzi kuti apange laser:
1) chonyamulira inversion kugawa m'dera yogwira wakhazikitsidwa;
2) pabowo yoyenera resonant amalola cheza analimbikitsa kudyetsedwa mmbuyo nthawi zambiri kupanga laser oscillation; ndi
3) jakisoni wamakono ndi wamphamvu mokwanira kuti apindule kwambiri kuposa kapena wofanana ndi kuchuluka kwa zotayika zosiyanasiyana ndikukwaniritsa zomwe zikuchitika pano.
Zinthu zitatu zazikuluzikulu zimagwirizana ndi lingaliro la mapangidwe a chipangizo cha VCSEL. Chigawo chogwira ntchito cha VCSEL chimagwiritsa ntchito kachipangizo kakang'ono kachulukidwe kachitsime kuti chikhazikitse maziko ozindikira kugawa kwapakati kwa chonyamulira. Pa nthawi yomweyi, phokoso la resonant lomwe limakhala ndi kuwunikira koyenera limapangidwa kuti lipangitse ma photons opangidwa kuti apange oscillation yogwirizana. Pomaliza, jakisoni wokwanira amaperekedwa kuti athandize ma photon kuthana ndi zotayika zosiyanasiyana za chipangizocho kuti chikhale chokhalitsa
Umu ndi momwe Shenzhen HDV Optoelectronic Technology Co., Ltd., kampani yolumikizirana ndi kuwala, idafotokozera VCSEL.