Okwu mmalite nke oghere kwụ ọtọ na-emitting semiconductor laser (VCSEL)

Okwu mmalite nke oghere kwụ ọtọ n'elu emittingsemiconductor laser(VCSEL)
E mepụtara lasers dị n'èzí na-emitting n'etiti 1990s iji merie isi nsogbu nke kparịrị mmepe nke lasers semiconductor omenala: otu esi emepụta mmepụta laser dị elu nke nwere nnukwu ọkụ ọkụ na ọnọdụ ntụgharị isi.
Ventikal mpụga oghere elu-emitting lasers (Vecsels), makwaara dị kasemiconductor diski lasers(SDL), bụ onye ọhụrụ na ezinụlọ laser. Ọ nwere ike chepụta ikuku ikuku site n'ịgbanwe ihe mejupụtara na ọkpụrụkpụ nke quantum nke ọma na semiconductor nweta ọkara, yana jikọtara ya na ugboro abụọ intracavity nwere ike kpuchie ogologo ogologo ogologo ogologo site na ultraviolet ruo infrared dị anya, na-enweta mmepụta ike dị elu ma na-ejigide obere ọdịiche. Nkuku okirikiri symmetric laser doo. The laser resonator mebere nke ala DBR Ọdịdị nke uru mgbawa na mpụga mmepụta njikọ enyo. Nhazi resonator dịpụrụ adịpụ a pụrụ iche na-enye ohere itinye ihe anya n'ime oghere maka ịrụ ọrụ dị ka ugboro ugboro ugboro abụọ, ọdịiche ugboro, na mkpọchi ọnọdụ, na-eme VECSEL dị mma.isi iyi lasermaka ngwa sitere na biophotonics, spectroscopy,ọgwụ laser, na ntule laser.
The resonator nke VC-elu emitting semiconductor laser bụ perpendicular ụgbọ elu ebe nọ n'ọrụ mpaghara dị, na ya pụta ìhè perpendicular ka ụgbọelu nke nọ n'ọrụ mpaghara, dị ka e gosiri na Figure.VCSEL nwere pụrụ iche uru, dị ka obere obere. size, elu ugboro, ezi doo àgwà, nnukwu oghere elu ala mmebi, na dịtụ mfe mmepụta usoro. Ọ na-egosi ọmarịcha arụmọrụ na ngwa nke ihe ngosi laser, nkwurịta okwu anya na elekere anya. Agbanyeghị, VCsel enweghị ike nweta lasers dị elu karịa ọkwa watt, yabụ enweghị ike iji ha n'ọhịa nwere oke ike chọrọ.

The laser resonator nke VCSEL bụ nke a na-ekesa Bragg reflector (DBR) nke mejupụtara multi-layer epitaxial Ọdịdị nke semiconductor ihe na ma elu na ala n'akụkụ nke na-arụ ọrụ na mpaghara, nke dị nnọọ iche nalaserresonator nke mejupụtara ụgbọ elu cleavage na EEL. Ntuziaka nke VCSEL optical resonator bụ perpendicular na mgbawa elu, laser mmepụta bụkwa perpendicular na mgbawa elu, na reflectivity nke n'akụkụ abụọ nke DBR dị nnọọ elu karịa nke EEL ngwọta ụgbọ elu.
Ogologo laser resonator nke VCSEL bụ n'ozuzu microns ole na ole, nke dị ntakịrị karịa nke milimita resonator nke EEL, na uru otu ụzọ enwetara site na oscillation ngwa anya na oghere dị ala. Ọ bụ ezie na enwere ike nweta nsonaazụ ntụgharị nke isi, ike nrụpụta nwere ike iru naanị ọtụtụ milliwatts. Profaịlụ n'ofe nke VCSEL laser beam bụ okirikiri, na akụkụ dị iche iche pere mpe karịa nke ọkụ laser na-ekupụta ihu. Iji nweta ike dị elu nke VCSEL, ọ dị mkpa ịbawanye mpaghara ọkụ iji nyekwuo uru, na mmụba nke mpaghara ìhè ga-eme ka laser mmepụta ghọọ mmepụta multi-mode. N'otu oge ahụ, ọ na-esi ike nweta edo ugbu injection na a nnukwu luminous mpaghara, na uneven ugbu injection ga-akawanye n'efu okpomọkụ mkpokọta.Na nkenke, na VCSEL nwere ike mmepụta isi mode okirikiri symmetric ntụpọ site ezi uche structural imewe, ma na. ike mmepụta dị ala mgbe mmepụta bụ otu ọnọdụ. Ya mere, ọtụtụ VCsel na-ejikọta ya na ọnọdụ mmepụta.