Hordhac ku saabsan laser-ka semiconductor-ka ee dusha sare ee daloolka toosan (VCSEL)

Hordhac ku saabsan dusha sare ee daloolka toosan ee soo baxayalaysarka semiconductor-ka(VCSEL)
Liisarro dusha sare ka soo saaraya godka bannaanka ee toosan ayaa la sameeyay bartamihii 1990-meeyadii si looga gudbo dhibaato muhiim ah oo hareysay horumarinta laysarka semiconductor-ka dhaqameed: sida loo soo saaro wax soo saarka laysarka awoodda sare leh oo leh tayo sare oo ku jirta qaabka isdhaafsiga aasaasiga ah.
Laysarka dusha sare ee daloolka taagan (Vecsels), oo sidoo kale loo yaqaanlaser-ka saxanka semiconductor-ka(SDL), waa xubin cusub oo ka tirsan qoyska laser-ka. Waxay naqshadeyn kartaa hirarka qiiqa iyadoo beddesha halabuurka walxaha iyo dhumucda ceelka quantum ee ku jira dhexdhexaadka helitaanka semiconductor-ka, oo lagu daro labanlaabidda soo noqnoqoshada gudaha godka waxay dabooli kartaa masaafada ballaaran laga bilaabo ultraviolet ilaa infrared fog, iyadoo la gaarayo wax soo saar awood sare leh iyadoo la ilaalinayo kala duwanaansho hoose. Laydhka wareegsan ee wareegsan ee siman ee laysarka. Laydhka dib-u-soo-celinta wuxuu ka kooban yahay qaab-dhismeedka DBR ee hoose ee jajabka faa'iidada iyo muraayadda isku-xidhka wax soo saarka dibadda. Qaab-dhismeedkan gaarka ah ee dib-u-soo-celinta dibadda wuxuu u oggolaanayaa walxaha indhaha in lagu geliyo godka si loogu hawlgalo sida labanlaabidda soo noqnoqoshada, farqiga soo noqnoqoshada, iyo qufulka qaabka, taasoo ka dhigaysa VECSEL mid ku habboon.Isha laysarkaloogu talagalay codsiyada laga bilaabo biophotonics, spectroscopy,daawada laysarka, iyo saadaasha laysarka.
Resonator-ka laysarka semiconductor-ka ee dusha sare ka soo saaraya VC-ga ayaa si toosan ugu toosan diyaaradda halkaas oo gobolka firfircoon uu ku yaal, iftiinkiisuna wuxuu ku toosan yahay diyaaradda gobolka firfircoon, sida ku cad jaantuska. VCSEL waxay leedahay faa'iidooyin gaar ah, sida cabbir yar, soo noqnoqosho sare, tayo wanaagsan oo iftiin ah, heerka burburka dusha sare ee godka weyn, iyo habka wax soo saarka oo fudud. Waxay muujinaysaa waxqabad aad u wanaagsan oo ku saabsan codsiyada bandhigga laysarka, isgaarsiinta indhaha iyo saacadda indhaha. Si kastaba ha ahaatee, VCsels ma heli karaan laysarka awoodda sare leh oo ka sarreeya heerka watt, sidaa darteed looma isticmaali karo goobaha leh shuruudaha awoodda sare.

Resonator-ka laysarka ee VCSEL wuxuu ka kooban yahay reflector Bragg oo qaybsan (DBR) oo ka kooban qaab-dhismeedka epitaxial-ka lakabka badan leh ee walxaha semiconductor-ka ee labada dhinac ee sare iyo hoose ee gobolka firfircoon, kaas oo aad uga duwan kan kale.laysarResonator-ka oo ka kooban diyaarad kala-goyn ah oo ku jirta EEL. Jihada resonator-ka indhaha ee VCSEL waa mid toosan oo ku taal dusha sare ee jajabka, wax soo saarka laysarka ayaa sidoo kale ku toosan dusha sare ee jajabka, iyo milicsiga labada dhinac ee DBR aad ayuu uga sarreeyaa kan diyaaradda xalka EEL.
Dhererka resonator-ka laysarka ee VCSEL guud ahaan waa dhowr microns, kaas oo aad uga yar kan resonator-ka millimeter-ka ee EEL, faa'iidada hal-dhinac ah ee laga helo gariirka goobta indhaha ee godka waa mid hooseeya. Inkasta oo wax soo saarka habka isdhaafka ah ee aasaasiga ah la gaari karo, awoodda wax soo saarku waxay gaari kartaa oo keliya dhowr milliwatts. Astaamaha qaybta isgoyska ee iftiinka laysarka wax soo saarka VCSEL waa wareegsan, kala duwanaanshaha xagashana aad ayay uga yar tahay tan iftiinka laysarka ee cidhifka soo saaraya. Si loo gaaro wax soo saar awood sare leh oo VCSEL ah, waxaa lagama maarmaan ah in la kordhiyo gobolka iftiinka leh si loo bixiyo faa'iido badan, kororka gobolka iftiinka lehna wuxuu sababi doonaa in laysarka wax soo saarka uu noqdo wax soo saar badan. Isla mar ahaantaana, way adag tahay in la gaaro duritaan isku mid ah oo hadda ah oo ku yaal gobol iftiin badan leh, duritaanka hadda aan sinnaynna wuxuu sii xumeyn doonaa ururinta kulaylka qashinka. Marka la soo koobo, VCSEL waxay soo saari kartaa booska wareegga ee qaabka aasaasiga ah iyada oo loo marayo naqshad dhisme oo macquul ah, laakiin awoodda wax soo saarku way hooseysaa marka wax soo saarku yahay hal hab. Sidaa darteed, VCsels badan ayaa badanaa lagu daraa qaabka wax soo saarka.