Izindaba - Kuyini ukupompa kwe-Optical ku-Laser?

Bhalisela i-Social Media yethu ukuze uthole okuthunyelwe okusheshayo

Empeleni, ukupompa nge-laser kuyinqubo yokunika amandla i-medium ukuze ifinyelele isimo lapho ingakhipha khona ukukhanya nge-laser. Lokhu kuvame ukwenziwa ngokufaka ukukhanya noma ugesi ku-medium, okuvusa ama-athomu ayo futhi kuholele ekukhishweni kokukhanya okuhlangene. Le nqubo eyisisekelo ishintshe kakhulu kusukela ekufikeni kwama-laser okuqala maphakathi nekhulu lama-20.

Nakuba kuvame ukwenziwa imodeli ngezilinganiso zesilinganiso, ukupompa nge-laser kuyinqubo ye-quantum mechanical ngokuyisisekelo. Kuhilela ukusebenzisana okuyinkimbinkimbi phakathi kwama-photon kanye nesakhiwo se-athomu noma sama-molecular se-gain medium. Amamodeli athuthukile abheka izimo ezifana ne-Rabi oscillations, ezinikeza ukuqonda okuningiliziwe kwalokhu kusebenzisana.

Ukupompa nge-laser kuyinqubo lapho amandla, ngokuvamile ngesimo sokukhanya noma ugesi, enikezwa endaweni yokuzuza kwe-laser ukuze kuphakanyiswe ama-athomu noma ama-molecule ayo ezimweni zamandla aphezulu. Lokhu kudluliswa kwamandla kubalulekile ekufinyeleleni ukuguqulwa kwabantu, isimo lapho izinhlayiya eziningi zivuselelwa khona kunasesimweni samandla aphansi, okuvumela indawo yokukhulisa ukukhanya ngokukhishwa okushukunyisiwe. Le nqubo ihilela ukusebenzisana okuyinkimbinkimbi kwe-quantum, okuvame ukwenziwa ngamamodeli ngezilinganiso zesilinganiso noma uhlaka lwe-quantum mechanical oluthuthukisiwe kakhulu. Izici ezibalulekile zifaka phakathi ukukhetha umthombo wephampu (njenge-laser diodes noma izibani zokukhipha), i-geometry yephampu (ukupompa eceleni noma ekugcineni), kanye nokwenza ngcono izici zokukhanya kwephampu (i-spectrum, ukuqina, ikhwalithi ye-beam, i-polarization) ukuze kuhambisane nezidingo ezithile ze-gain medium. Ukupompa nge-laser kubalulekile ezinhlotsheni ezahlukene ze-laser, kufaka phakathi i-solid-state, i-semiconductor, kanye ne-gas laser, futhi kubalulekile ekusebenzeni kahle nangokuphumelelayo kwe-laser.

Izinhlobo Zama-Laser Ampompiwe Ngokubona

1. Ama-Laser Esimo Esiqinile Ane-Insulators Ene-Doped

· Ukubuka konke:Lawa ma-laser asebenzisa i-host medium evikela ugesi futhi athembele ekumpompeni okubonakalayo ukuze anike amandla ama-ion asebenza nge-laser. Isibonelo esivamile yi-neodymium kuma-laser e-YAG.

·Ucwaningo Lwakamuva:Ucwaningo luka-A. Antipov nabanye luxoxa nge-laser ye-solid-state near-IR yokupompa kwe-spin-exchange optical. Lolu cwaningo luqokomisa intuthuko kubuchwepheshe be-solid-state laser, ikakhulukazi ku-spectrum ye-near-infrared, ebaluleke kakhulu ezinhlelweni zokusebenza ezifana nokuthwebula izithombe zezokwelapha kanye nokuxhumana ngocingo.

Ukufunda Okwengeziwe:I-Solid-State Near-IR Laser Yokupompa Okubonakalayo Kwe-Spin-Exchange

2. Ama-Laser e-Semiconductor

·Ulwazi Olujwayelekile: Ngokuvamile ama-laser e-semiconductor adonswa ngogesi, angazuza ekupompeni okubonakalayo, ikakhulukazi ezinhlelweni ezidinga ukukhanya okuphezulu, njenge-Vertical External Cavity Surface Emitting Lasers (VECSELs).

·Intuthuko Yamuva: Umsebenzi ka-U. Keller kuma-optical frequency combs avela kuma-ultrafast solid-state kanye nama-semiconductor lasers unikeza ukuqonda ngokukhiqizwa kwama-stable frequency combs avela kuma-diode-pumped solid-state kanye nama-semiconductor lasers. Lokhu kuthuthuka kubalulekile ekusetshenzisweni kwe-optical frequency metrology.

Ukufunda Okwengeziwe:Ama-combs e-Optical frequency avela kuma-laser e-ultrafast solid-state kanye ne-semiconductor

3. Ama-Laser egesi

·Ukupompa Okubonakalayo Kuma-Laser Egesi: Izinhlobo ezithile zama-laser egesi, njenge-alkali vapor lasers, zisebenzisa ukupompa okubonakalayo. Lawa ma-laser avame ukusetshenziswa ezinhlelweni ezidinga imithombo yokukhanya ehambisanayo enezakhiwo ezithile.

Imithombo Yokupompa Okubonakalayo

Izibani Zokukhipha Igesi: Okuvamile kuma-laser ampompiwe ngezibani, izibani zokukhipha zisetshenziselwa amandla azo aphezulu kanye ne-spectrum ebanzi. U-YA Mandryko nabanye bathuthukise imodeli yamandla yokukhiqizwa kokukhishwa kwe-impulse arc kuma-active media optical pumping xenon lamps ama-solid-state lasers. Le modeli isiza ukuthuthukisa ukusebenza kwezibani zokukhipha i-impulse, ezibalulekile ekusebenzeni kahle kwe-laser.

Ama-Diode e-Laser:Ama-laser diode asetshenziswa kuma-laser adonswa yi-diode, anikeza izinzuzo ezifana nokusebenza kahle okuphezulu, usayizi omncane, kanye nekhono lokulungiswa kahle.

Ukufunda okwengeziwe:iyini i-laser diode?

Izibani Ezikhanyayo: Izibani ze-Flash ziyimithombo yokukhanya enamandla, ene-spectrum ebanzi evame ukusetshenziswa ekupompeni ama-laser aqinile, njenge-ruby noma ama-laser e-Nd:YAG. Anikeza ukukhanya okukhulu okuvusa i-laser medium.

Izibani ze-Arc: Njengezibani ezikhanyayo kodwa ezenzelwe ukusebenza okuqhubekayo, izibani ze-arc zinikeza umthombo ozinzile wokukhanya okukhulu. Zisetshenziswa ezinhlotsheni lapho kudingeka khona ukusebenza kwe-laser yamagagasi aqhubekayo (CW).

Ama-LED (Ama-Diode Akhipha Ukukhanya): Nakuba engavamile njenge-laser diodes, ama-LED angasetshenziswa ekupompeni okubonakalayo kwezinye izinhlelo zokusebenza zamandla aphansi. Anenzuzo ngenxa yokuphila kwawo isikhathi eside, izindleko eziphansi, kanye nokutholakala kwawo kuma-wavelength ahlukahlukene.

Ukukhanya kwelanga: Kwezinye izinhlelo zokuhlola, ukukhanya kwelanga okugxilile kuye kwasetshenziswa njengomthombo wokupompa wama-laser adonswa yilanga. Le ndlela isebenzisa amandla elanga, okwenza kube umthombo ovuselelekayo futhi ongabizi kakhulu, yize ingalawuleki futhi ingabi namandla kakhulu uma iqhathaniswa nemithombo yokukhanya yokwenziwa.

Ama-Diode e-Laser Ahlanganiswe Nge-Fiber: Lawa ama-laser diode ahlanganiswe nemicu ye-optical, eletha ukukhanya kwephampu ngendlela ephumelela kakhudlwana endaweni ye-laser. Le ndlela iwusizo kakhulu kuma-fiber laser nasezimweni lapho ukulethwa okunembile kokukhanya kwephampu kubalulekile.

Amanye Ama-LaserNgezinye izikhathi, i-laser eyodwa isetshenziselwa ukupompa enye. Isibonelo, i-laser ye-Nd: YAG ephindwe kabili ingasetshenziswa ukupompa i-laser yedayi. Le ndlela ivame ukusetshenziswa lapho kudingeka ubude be-wavelength ethile yenqubo yokupompa engatholakali kalula ngemithombo yokukhanya evamile.

I-laser yesimo esiqinile epompiwe yi-diode

Umthombo Wamandla Wokuqala: Inqubo iqala nge-laser ye-diode, esebenza njengomthombo wephampu. Ama-laser e-diode akhethwa ngenxa yokusebenza kwawo kahle, ubukhulu obuncane, kanye nekhono lokukhipha ukukhanya kuma-wavelength athile.

Isibani Sephampu:I-laser ye-diode ikhipha ukukhanya okumuncwa yi-solid-state gain medium. Ububanzi be-wavelength ye-laser ye-diode buklanyelwe ukuhambisana nezici zokumuncwa kwe-gain medium.

Isimo EsiqinileInzuzo Ephakathi

Izinto:I-gain medium kuma-laser e-DPSS ngokuvamile iyinto eqinile njenge-Nd:YAG (Neodymium-doped Yttrium Aluminium Garnet), Nd:YVO4 (Neodymium-doped Yttrium Orthovanadate), noma i-Yb:YAG (Ytterbium-doped Yttrium Aluminium Garnet).

Ukuphuza izidakamizwa:Lezi zinto zifakwe ama-ion e-rare-earth (njenge-Nd noma i-Yb), okuyi-ion ye-laser esebenzayo.

Ukumuncwa Kwamandla Nokuvusa Inkanuko:Uma ukukhanya kwephampu okuvela ku-laser ye-diode kungena ku-gain medium, ama-ion e-rare-earth amunca la mandla futhi ajabule ngezimo zamandla aphezulu.

Ukuguqulwa Kwenani Labantu

Ukufinyelela Ukuguqulwa Kwabantu:Isihluthulelo sesenzo se-laser ukufeza ukuguqulwa kwenani labantu endaweni yokuzuza. Lokhu kusho ukuthi ama-ion amaningi asesimweni sokuzijabulisa kunasesimweni somhlaba.

Ukukhishwa Okushukunyiswayo:Uma ukuguqulwa kwenani labantu sekufinyelelwe, ukwethulwa kwe-photon ehambisana nomehluko wamandla phakathi kwezimo ezivukile kanye nezisemhlabeni kungakhuthaza ama-ion avukile ukuthi abuyele esimweni somhlaba, kukhiphe i-photon enkambisweni.

I-Optical Resonator

Izibuko: I-gain medium ifakwa ngaphakathi kwe-optical resonator, evame ukwakheka yizibuko ezimbili ekugcineni ngakunye kwe-medium.

Impendulo Nokukhulisa: Esinye sezibuko sikhanya kakhulu, kanti esinye sikhanya kancane. Ama-photon agxumagxuma phakathi kwalezi zibuko, evuselela ukukhishwa okwengeziwe futhi akhulise ukukhanya.

Ukukhishwa Kwe-Laser

Ukukhanya Okuvumelanayo: Ama-photon akhishwayo ayahambisana, okusho ukuthi asesigabeni futhi anobude obufanayo.

Okukhiphayo: Isibuko esibonakalisa kancane sivumela okunye kwalokhu kukhanya ukuthi kudlule, kwakha umsebe we-laser ophuma ku-laser ye-DPSS.

Amajiyometri Okupompa: Ukupompa Ohlangothini vs. Ukuphela

Indlela Yokupompa	Incazelo	Izicelo	Izinzuzo	Izinselele
Ukupompa Eceleni	Ukukhanya kwephampu kwethulwe ngokuqondile endaweni ye-laser	I-Rod noma i-fiber lasers	Ukusatshalaliswa okufanayo kokukhanya kwephampu, okufanele ukusetshenziswa kwamandla aphezulu	Ukusatshalaliswa kwenzuzo okungalingani, ikhwalithi ye-beam ephansi
Ukuqeda Ukupompa	Ukukhanya kwephampu okuqondiswe ku-axis efanayo nomsebe we-laser	Ama-laser e-Solid-state afana ne-Nd:YAG	Ukusatshalaliswa kwenzuzo efanayo, ikhwalithi ephezulu yemisebe	Ukuqondanisa okuyinkimbinkimbi, ukushabalalisa ukushisa okungekuhle kuma-laser anamandla amakhulu

Izidingo Zokukhanya Kwephampu Okusebenzayo

Isidingo	Ukubaluleka	Umthelela/Ibhalansi	Amanothi Engeziwe
Ukufaneleka kwe-Spectrum	Ubude bamagagasi kumele buhambisane ne-spectrum yokumuncwa kwe-laser medium	Iqinisekisa ukumuncwa okuphumelelayo kanye nokuguqulwa okuphumelelayo kwenani labantu	-
Ukuqina	Kumelwe kube phezulu ngokwanele ukuze kube nezinga lokuvusa elifiswayo	Ukuqina okuphezulu kakhulu kungabangela umonakalo wokushisa; ukwehla kakhulu ngeke kufeze ukuguqulwa kwabantu	-
Ikhwalithi Yomsebe	Okubaluleke kakhulu kuma-laser aphethwe ekugcineni	Iqinisekisa ukuhlanganiswa okusebenzayo futhi inegalelo ekhwalithini ye-laser beam ekhishwayo	Ikhwalithi ephezulu yemisebe ibalulekile ekuhlanganiseni okunembile kokukhanya kwephampu kanye nomthamo wemodi ye-laser
Ukwehlukaniswa	Kuyadingeka kwimidiya enezakhiwo ze-anisotropic	Kuthuthukisa ukusebenza kahle kokumunca futhi kungathinta ukuhlukaniswa kokukhanya kwe-laser okukhishwe	Isimo esithile sokuhlukanisa singadingeka
Umsindo Wokuqina	Amazinga omsindo aphansi abalulekile	Ukuguquguquka kwamandla okukhanya kwephampu kungathinta ikhwalithi kanye nokuqina kokukhishwa kwe-laser	Kubalulekile kuzinhlelo zokusebenza ezidinga ukuzinza okuphezulu nokunemba

Isicelo Se-Laser Esihlobene

Imikhiqizo Ehlobene

I-Diode Pumped Solid State Laser

Phakamisa ucwaningo lwakho kanye nezinhlelo zokusebenza ngochungechunge lwethu lwe-Diode Pumped Solid State Lasers (DPSS). Lawa ma-laser, ahlonyiswe ngamakhono okupompa amandla aphezulu, ikhwalithi yokukhanya eyingqayizivele, kanye nokuqina okungenakuqhathaniswa, anikeza izixazululo ezihlukahlukene zezinhlelo zokusebenza.

I-Laser Diode Array

Uchungechunge lwe-Laser Diode Stacks lutholakala ngama-array avundlile, aqondile, ane-polygon, anendandatho, kanye nama-mini-stacked, ahlanganiswe ndawonye kusetshenziswa ubuchwepheshe be-AuSn hard soldering. I-cooling stack ingasetshenziswa ekukhanyiseni, ocwaningweni, ekutholeni kanye nasemithomboni yephampu.

I-Diode ye-Laser Ehlanganisiwe Yefayibha

Ama-laser e-diode ahlanganiswe nge-fibre, akhipha ukukhanya okubushelelezi nokuyindilinga ngekhwalithi yokukhanya okulinganayo, achazwa njengamadivayisi e-laser e-diode ahlanganisa ukukhanya okuvelayo kube yi-optical fibre.

I-Laser Yengilazi Ene-Doped Erbium

I-Erbium-Doped Glass Laser yethu, eyaziwa ngokuthi i-1535nm Eye-Safe Er Glass Laser, iphumelela kakhulu ekutholeni i-rangefinders ephephile emehlweni. Inikeza ukusebenza okuthembekile nokungabizi kakhulu, ikhipha ukukhanya okumuncwa yi-cornea kanye nezakhiwo zamehlo ezikristalu, iqinisekisa ukuphepha kwe-retina.

Isikhathi sokuthunyelwe: Disemba-01-2023