Uphuhliso kunye nobume bemarike yelaser enokutshibilika (Icandelo lesibini)
Umgaqo wokusebenza wei-laser enokuqhutywa
Kukho malunga nemigaqo emithathu yokufezekisa ukulungiswa kwe-laser wavelength.Uninziiilaser ezinokusebenzisekasebenzisa izinto ezisebenzayo ezinemigca ebanzi yefluorescent.Iiresonators ezenza i-laser zinelahleko ephantsi kakhulu kuphela kuluhlu olumxinwa kakhulu lwamaza.Ke ngoko, eyokuqala kukutshintsha i-wavelength ye-laser ngokuguqula i-wavelength ehambelana nommandla welahleko ephantsi ye-resonator ngezinto ezithile (ezifana ne-grating).Okwesibini kukutshintsha inqanaba lamandla enguqu ye-laser ngokuguqula ezinye iiparamitha zangaphandle (ezifana nemagnethi, ubushushu, njl.njl.).Okwesithathu kukusetyenziswa kweempembelelo ezingabonakaliyo ukuphumeza ukuguqulwa kwe-wavelength kunye nokulungiswa (jonga i-optical optics engabonakaliyo, i-Raman evuselelwe ukusasazeka, i-optical frequency double, i-optical parametric oscillation).Iilaser eziqhelekileyo zendlela yokuqala yokulungisa ziilaser zedayi, iilaser zechrysoberyl, iilaser zeziko lombala, iilaser zerhasi ezinoxinzelelo oluphezulu kunye neelaser eziphumayo ezinokutya.
I-laser ye-tunable ngokwembono yetekhnoloji yokuqonda yahlulwe kakhulu: iteknoloji yolawulo lwangoku, iteknoloji yokulawula ubushushu kunye nobuchwepheshe bokulawula oomatshini.
Phakathi kwabo, itekhnoloji yolawulo lwe-elektroniki kukufikelela kubude be-wavelength ngokuguqula inaliti yangoku, kunye nesantya sokulungisa inqanaba le-NS, i-bandwidth yokutshintsha okubanzi, kodwa amandla amancinci aphumayo, esekwe kwitekhnoloji yolawulo lwe-elektroniki ikakhulu iSG-DBR (isampula yegrating DBR) kunye I-GCSR laser (i-axiliary grating directional coupling back-sampling reflection) .Itekhnoloji yokulawula ubushushu itshintsha i-wavelength ye-laser ngokuguqula i-refractive index yengingqi esebenzayo ye-laser.Itekhnoloji ilula, kodwa iyacotha, kwaye inokulungiswa kunye nobubanzi bebhendi encinci ye-nm ezimbalwa kuphela.Ezona ziphambili zisekelwe kwi-teknoloji yokulawula ukushisaDFB laser(ingxelo esasazwayo) kunye ne-DBR laser (i-Distributed Bragg reflection).Ulawulo lomatshini lusekelwe ikakhulu kwi-MEMS (i-micro-electro-mechanical system) iteknoloji yokugqiba ukhetho lwe-wavelength, kunye ne-bandwidth enkulu eguquguqukayo, amandla aphezulu aphumayo.Izakhiwo eziphambili ezisekelwe kwi-teknoloji yokulawula iteknoloji yi-DFB (ingxelo esasazwayo), i-ECL (i-laser ye-cavity yangaphandle) kunye ne-VCSEL (i-laser ye-cavity emitting laser).Oku kulandelayo kucaciswe kule miba yomgaqo-siseko weelaser ezitshintshwayo.
Isicelo sonxibelelwano olubonakalayo
I-laser ye-Tunable sisixhobo esiphambili se-optoelectronic kwisizukulwana esitsha se-dense wavelength division multiplexing system kunye notshintshiselwano lwefoton kwinethiwekhi yonke ye-optical network.Ukusetyenziswa kwayo kwandisa kakhulu umthamo, ukuguquguquka kunye nokunyuka kwenkqubo yokuhanjiswa kwe-fiber optical, kwaye uye waqonda ukulungelelaniswa okuqhubekayo okanye okulinganayo kuluhlu olubanzi lwamaza.
Iinkampani kunye namaziko ophando kwihlabathi jikelele akhuthaza uphando kunye nophuhliso lweelaser ezitshintshwayo, kwaye inkqubela phambili entsha ihlala isenziwa kweli candelo.Ukusebenza kweelaser ezitshintshwayo zihlala ziphuculwa kwaye iindleko zihlala zincitshiswa.Okwangoku, iilaser ezitshintshwayo zohlulwe ikakhulu zibe ziindidi ezimbini: i-semiconductor tunable lasers kunye ne-laser fiber lasers.
I-laser ye-semiconductorngumthombo wokukhanya obalulekileyo kwinkqubo yonxibelelwano lwe-optical, eneempawu zobukhulu obuncinci, ubunzima bokukhanya, ukusebenza kakuhle kokuguqulwa, ukugcinwa kwamandla, njl., kwaye kulula ukufezekisa ukuhlanganiswa kwe-chip optoelectronic kunye nezinye izixhobo.Inokwahlulwa ibe yi-laser yempendulo ehanjiswayo, isasazwe i-Bragg mirror laser, inkqubo ye-micromotor ethe nkqo kumphezulu okhupha i-laser kunye ne-laser ye-semiconductor yangaphandle.
Ukuphuhliswa kwe-laser yefiber etyhutyhulwayo njengendlela yokuzuza kunye nophuhliso lwe-semiconductor laser diode njengomthombo wempompo lukhuthaze kakhulu ukuphuhliswa kwe-fiber lasers.I-laser e-tunable isekwe kwi-80nm yokufumana i-bandwidth ye-doped fiber, kwaye into yokucoca yongezwa kwi-loop ukulawula ubude be-wavelength kunye nokuqonda ukulungiswa kwe-wavelength.
Uphuhliso lwe-laser ye-semiconductor enokutyibilika lusebenza kakhulu kwihlabathi, kwaye inkqubela nayo ikhawuleza kakhulu.Njengoko ii-laser ezitshintshwayo zisondela ngokuthe ngcembe kwi-laser ye-wavelength esisigxina ngokweendleko kunye nokusebenza, ngokuqinisekileyo ziya kusetyenziswa ngakumbi nangakumbi kwiinkqubo zonxibelelwano kwaye zidlale indima ebalulekileyo kwiinethiwekhi ze-optical zexesha elizayo.
Ithemba lophuhliso
Zininzi iindidi zeelaser ezinokutyibilika, ezithi ziphuhliswe ngokuqhubekayo ngokuzisa iindlela zokulungisa amaza ngokwesiseko seelaser zobude obunye, kwaye ezinye izinto ezithengiswayo zinikezelwe kwintengiso kumazwe ngamazwe.Ukongeza kuphuhliso lweelaser eziqhubekayo zokutyhuna, iilaser ezityibilikayo ezineminye imisebenzi edityanisiweyo nazo ziye zaxelwa, ezifana nelaser etyibilikayo edityaniswe nechip enye yeVCSEL kunye nemodyuli yokufunxa yombane, kunye nelaser edityaniswe nesampulu yegrating Bragg reflector. kunye ne-semiconductor optical amplifier kunye nemodyuli yokufunxa umbane.
Ngenxa yokuba i-laser ye-tunable ye-wavelength isetyenziswa ngokubanzi, i-laser etyhunwayo yezakhiwo ezahlukeneyo inokufakwa kwiinkqubo ezahlukeneyo, kwaye nganye ineengenelo kunye nokungalunganga.I-laser ye-semiconductor ye-cavity yangaphandle ingasetyenziselwa njengomthombo wokukhanya othungelwayo obanzi kwizixhobo zovavanyo oluchanekileyo ngenxa yamandla ayo aphezulu aphumayo kunye ne-wavelength eqhubekayo.Ukusuka kwimbono yokudityaniswa kweefoton kunye nokudibana nenethiwekhi ye-optical yekamva, isampula yegrayiti ye-DBR, i-superstructured grating DBR kunye ne-laser ezitshintshwayo ezidityaniswe neemodyuli kunye ne-amplifiers zinokuthembisa ngemithombo yokukhanya etyhutyhukayo ye-Z.
I-Fiber grating ilaser etyhunwayo enecango yangaphandle ikwaluhlobo oluthembisayo lomthombo wokukhanya, onesakhiwo esilula, ububanzi bomgca omxinwa kunye nokudibanisa ifayibha lula.Ukuba i-modulator ye-EA inokudityaniswa kwi-cavity, inokusetyenziswa njengomthombo we-soliton optical optical speed.Ukongeza, iilaser zefayibha ezityiwayo ezisekwe kwifiber lasers zenze inkqubela ebonakalayo kwiminyaka yakutshanje.Kunokulindelwa ukuba ukusebenza kweelaser ezinokutya kwimithombo yokukhanya yonxibelelwano lwe-optical kuya kuphuculwa ngakumbi, kwaye isabelo semakethi siya kunyuka ngokuthe ngcembe, kunye nethemba eliqaqambileyo lokufaka isicelo.
Ixesha lokuposa: Oct-31-2023