Bhalisela kwiMidiya yethu yeNtlalo ukuze ufumane iPosi ekhawulezileyo

Iilaser, isiseko sobuchwepheshe bale mihla, zinomdla kwaye ziyinkimbinkimbi. Entliziyweni yazo kukho i-symphony yezinto ezisebenza ngaxeshanye ukuvelisa ukukhanya okucacileyo nokukhulisiweyo. Le bhlog ijonga kwiingxaki zezi zinto, ixhaswa yimigaqo yesayensi kunye nezibalo, ukuze inike ukuqonda okunzulu kwetekhnoloji yelaser.

Ulwazi Oluphambili Ngezixhobo Zenkqubo Yelaser: Imbono Yobuchwephesha Yeengcali

Icandelo	Umsebenzi	Imizekelo
Fumana iPhakathi	I-gain medium yinto ekwi-laser esetyenziselwa ukwandisa ukukhanya. Inceda ukwandisa ukukhanya ngenkqubo yokuguqulwa kobuninzi kunye nokukhupha okukhuthazwayo. Ukukhethwa kwe-gain medium kumisela iimpawu zemitha ye-laser.	IiLaser zeLizwe eliQinileyo: umz., i-Nd:YAG (i-Neodymium-doped Yttrium Aluminium Garnet), esetyenziswa kwiindlela zonyango nakwimizi-mveliso.Iilaser zegesiumz., iilaser zeCO2, ezisetyenziselwa ukusika nokuwelda.Iileza zeSemiconductor:umz., ii-laser diodes, ezisetyenziswa kunxibelelwano lwe-fiber optics kunye nee-laser pointers.
Umthombo wokupompa	Umthombo wokupompa unika amandla kwi-gain medium ukuze kufezekiswe ukuguqulwa kwenani labantu (umthombo wamandla wokuguqulwa kwenani labantu), okuvumela ukusebenza nge-laser.	Ukupompa okubonakalayo: Ukusebenzisa imithombo yokukhanya enamandla njengezibane ezikhanyayo ukupompa ii-laser eziqinileyo.Ukupompa kombane: Ukuvusa igesi kwi-laser zegesi ngombane.Ukupompa kwe-semiconductor: Ukusebenzisa ii-laser diodes ukupompa i-solid-state laser medium.
Umgodi wokukhanya	I-optical cavity, equlathe izibuko ezibini, ibonisa ukukhanya ukuze kwandiswe ubude bokukhanya kwindlela yokukhanya kwindawo yokuzuza, ngaloo ndlela kuphucula ukwandiswa kokukhanya. Ibonelela ngendlela yokuphendula yokwandiswa kwelaser, ikhetha iimpawu ze-spectral kunye nendawo yokukhanya.	Umgodi wePlane-Plane: Isetyenziswa kuphando lwelabhoratri, isakhiwo esilula.Umgodi wePlanar-Concave: Ixhaphakile kwiilaser zoshishino, inika imiqadi esemgangathweni ophezulu. Umgodi weRing: Isetyenziswa kwiindlela ezithile zoyilo lweelaser zeringi, njengeelaser zegesi yeringi.

I-Gain Medium: I-Nexus ye-Quantum Mechanics kunye ne-Optical Engineering

IiQuantum Dynamics kwiGain Medium

I-gain medium kulapho inkqubo esisiseko yokukhulisa ukukhanya yenzeka khona, into egxile kakhulu kwi-quantum mechanics. Unxibelelwano phakathi kweemeko zamandla kunye namasuntswana ngaphakathi kwe-medium lulawulwa yimigaqo yokukhupha okukhuthazwayo kunye nokuguqulwa kwabantu. Ubudlelwane obubalulekileyo phakathi kokuqina kokukhanya (I), ukuqina kokuqala (I0), i-transition cross-section (σ21), kunye namanani amasuntswana kumanqanaba amabini amandla (N2 kunye no-N1) luchazwa yi-equation I = I0e^(σ21(N2-N1)L). Ukufezekisa ukuguqulwa kwabantu, apho i-N2 > N1, ibalulekile ekukhuliseni kwaye lilitye lesiseko le-laser physics[1].

Iinkqubo zeNqanaba eliThathu vs. ezine

Kwimizobo yelaser esebenzayo, iinkqubo zamanqanaba amathathu kunye namanqanaba amane zihlala zisetyenziswa. Iinkqubo zamanqanaba amathathu, nangona zilula, zifuna amandla angakumbi ukufezekisa ukuguqulwa kwabantu njengoko inqanaba lelaser elisezantsi liyimeko yomhlaba. Iinkqubo zamanqanaba amane, kwelinye icala, zibonelela ngendlela esebenzayo yokuguqulwa kwabantu ngenxa yokubola okukhawulezileyo okungenamisebe kwinqanaba eliphezulu lamandla, okwenza ukuba zixhaphake kakhulu kwizicelo zanamhlanje zelaser[2].

Is Iglasi exutywe ne-Erbiumindlela yokufumana inzuzo?

Ewe, iglasi exutywe ne-erbium ngokwenene luhlobo lwendlela yokufumana i-gain medium esetyenziswa kwiinkqubo ze-laser. Kule meko, "i-doping" ibhekisa kwinkqubo yokongeza inani elithile lee-erbium ions (Er³⁺) kwiglasi. I-Erbium yinto engaqhelekanga yomhlaba, xa ifakwe kwi-host yeglasi, inokukhulisa ukukhanya ngempumelelo ngokukhupha okukhuthazwayo, inkqubo esisiseko ekusebenzeni kwe-laser.

Iglasi exutywe ne-erbium iphawuleka kakhulu ngokusetyenziswa kwayo kwi-fiber lasers kunye ne-fiber amplifiers, ingakumbi kushishino lonxibelelwano. Ifanelekile kakhulu kwezi zicelo kuba ikhulisa ukukhanya ngokufanelekileyo kwii-wavelengths ezimalunga ne-1550 nm, eli li-wavelength ephambili yonxibelelwano lwe-optical fiber ngenxa yokulahleka kwayo okuphantsi kwii-silica fibers eziqhelekileyo.

Ii-erbiumii-ion zifunxa ukukhanya kwepompo (ngokuqhelekileyo ukusuka kwi-ai-diode yelaser) kwaye bayavuya kwiimeko eziphezulu zamandla. Xa bebuyela kwimeko ephantsi yamandla, bakhupha ii-photons kwi-lasing wavelength, nto leyo enegalelo kwinkqubo ye-laser. Oku kwenza iglasi efakwe i-erbium ibe yindlela esebenzayo nesetyenziswa kakhulu yokwandisa amandla kwiindlela ezahlukeneyo zoyilo lwe-laser kunye ne-amplifier.

IiBlogs Ezinxulumeneyo: Iindaba - Iglasi e-Erbium-Doped: Isayensi kunye nezicelo

Iindlela Zokupompa: Amandla Aqhubayo Asebenzisa I-Laser

Iindlela ezahlukeneyo zokufezekisa ukuguquka kwabantu

Ukukhetha indlela yokupompa kubaluleke kakhulu kuyilo lwelaser, nto leyo echaphazela yonke into ukusuka ekusebenzeni kakuhle ukuya kwi-output wavelength. Ukupompa okubonakalayo, kusetyenziswa imithombo yokukhanya yangaphandle efana nezibane zeflash okanye ezinye iilaser, kuqhelekile kwi-solid-state kunye ne-dye lasers. Iindlela zokukhupha umbane zihlala zisetyenziswa kwi-gas lasers, ngelixa ii-semiconductor lasers zihlala zisebenzisa i-electron injection. Ukusebenza kakuhle kwezi ndlela zokupompa, ngakumbi kwi-diode-pumped solid-state lasers, kube yinto ebalulekileyo kuphando lwakutshanje, olubonelela ngokusebenza kakuhle kunye nokuxinana okuphezulu [3].

Izinto Eziqwalaselwa Ngobuchwephesha Ekusebenzeni Kakuhle Kokupompa

Ukusebenza kakuhle kwenkqubo yokupompa yinto ebalulekileyo kuyilo lwelaser, nto leyo echaphazela ukusebenza ngokubanzi kunye nokufaneleka kwesicelo. Kwi-laser eziqinileyo, ukukhetha phakathi kwezibane ze-flash kunye nee-laser diodes njengomthombo wepompo kunokuchaphazela kakhulu ukusebenza kakuhle kwenkqubo, umthwalo wobushushu, kunye nomgangatho we-beam. Uphuhliso lwee-laser diodes ezinamandla aphezulu, ezisebenza kakuhle kakhulu luye lwaguqula iinkqubo ze-laser ze-DPSS, nto leyo evumela uyilo oluncinci nolusebenzayo ngakumbi[4].

Umgodi Wokubona: Ubunjineli Bomqadi Welaser

Uyilo lweCavity: Umthetho Wokulinganisela weFiziksi noBunjineli

Umngxuma wokukhanya, okanye i-resonator, ayisiyonto nje engasebenziyo kodwa ngumthathi-nxaxheba okhutheleyo ekubumbeni umqadi welaser. Uyilo lomngxuma, kuquka ukugoba kunye nokulungelelaniswa kwezipili, ludlala indima ebalulekileyo ekumiseleni uzinzo, ulwakhiwo lwemo, kunye nemveliso yelaser. Umngxuma kufuneka wenzelwe ukuphucula inzuzo ye-optical ngelixa kunciphisa ilahleko, umngeni odibanisa ubunjineli be-optical kunye ne-wave optics.5.

Iimeko zokujika kunye nokukhethwa kwendlela

Ukuze kwenzeke i-laser oscillation, i-gain enikezelwa yi-medium kufuneka idlule ilahleko ezingaphakathi kwi-cavity. Le meko, kunye nemfuneko ye-coherent wave superposition, iyalela ukuba kuphela iindlela ezithile ze-longitudinal ezixhaswayo. Isithuba se-mode kunye nesakhiwo se-mode iyonke zichatshazelwa bubude bomzimba be-cavity kunye ne-refractive index ye-gain medium[6].

Isiphelo

Uyilo kunye nokusebenza kweenkqubo ze-laser kuquka uluhlu olubanzi lwemigaqo yefiziksi kunye nobunjineli. Ukususela kwi-quantum mechanics elawula i-gain medium ukuya kubunjineli obuntsonkothileyo be-optical cavity, icandelo ngalinye lenkqubo ye-laser lidlala indima ebalulekileyo ekusebenzeni kwayo ngokubanzi. Eli nqaku linike umbono wehlabathi elintsonkothileyo letekhnoloji ye-laser, linika ulwazi oluhambelana nokuqonda okuphambili koonjingalwazi kunye neenjineli ze-optical kwicandelo.

Isicelo seLaser esiNxulumeneyo

Iimveliso eziNxulumeneyo

I-Diode Pumped Solid State Laser

Phakamisa uphando lwakho kunye nezicelo zakho ngothotho lwethu lweeDiode Pumped Solid State Lasers (DPSS). Ezi lasers, zixhotyiswe ngamandla aphezulu okupompa, umgangatho ogqwesileyo wemitha, kunye nozinzo olungenakuthelekiswa nanto, zibonelela ngezisombululo ezahlukeneyo kwizicelo.

I-Laser Diode Array

Uthotho lweeLaser Diode Stacks lufumaneka kwii-arrays ezithe tye, ezithe nkqo, ezi-polygon, ezi-ring, kunye nezi-mini-stacked arrays, ezidityaniswe kunye kusetyenziswa itekhnoloji ye-AuSn hard soldering. I-cooling stack ingasetyenziswa ekukhanyiseni, kuphando, ekufumaneni kunye nemithombo yepompo.

I-Diode yeLaser eDibeneyo yeFiber

Iilaser zediode ezidityaniswe nefayibha, ezikhupha ukukhanya okugudileyo nokujikelezayo okunomgangatho wemitha elinganayo, zichazwa njengezixhobo zelaser zediode ezidibanisa ukukhanya okuphumayo kwifayibha ye-optical.

I-diode ye-laser edityanisiweyo yefayibha

I-Laser yeglasi exutywe ne-Erbium

I-Erbium-Doped Glass Laser yethu, eyaziwa ngokuba yi-1535nm Eye-Safe Er Glass Laser, igqwesile kwii-rangefinders ezikhuselekileyo emehlweni. Inika ukusebenza okuthembekileyo nokungabizi kakhulu, ikhupha ukukhanya okufunxwa yi-cornea kunye nezakhiwo ze-crystalline zamehlo, iqinisekisa ukhuseleko lwe-retina.

Iireferensi

1. Siegman, AE (1986). IiLaser. Iincwadi zeNzululwazi zeYunivesithi.
2. Svelto, O. (2010). Imigaqo yeLaser. ISpringer.
3. Koechner, W. (2006). Ubunjineli beLaser obusebenza kwiSolid-State. ISpringer.
4. Piper, JA, kunye noMildren, RP (2014). IiLaser zeDiode Pumped Solid State. KwiNcwadi yeTekhnoloji yeLaser kunye neZicelo (uMqulu III). I-CRC Press.
5. Milonni, PW, kunye no-Eberly, JH (2010). Ifiziksi yeLaser. Wiley.
6. Silfvast, WT (2004). Iziseko zeLaser. Cambridge University Press.

Ixesha lokuthumela: Novemba-27-2023

Izinto eziphambili ze-laser: I-Gain Medium, i-Pump Source, kunye ne-Optical Cavity.