BWT e hlahisitse khopolo ea tlhophiso ea sebaka se teteaneng (DSBC) mme e netefalitse ho nepahala ha DSBC ka teko ea mohloli oa pompo ea boemo ba kilowatt.Hajoale, matla a tube e le 'ngoe a ekelitsoe ho 15W-30W@BPP≈5-12mm*mrad mme katleho ea electro-optical ke> 60%, e nolofalletsang mohloli oa pompo ea matla a phahameng a kopantsoeng le fiber ho boloka boemo bo phahameng. tlhahiso e khanyang ha e ntse e fokotsa molumo, Hoa khoneha ho fokotsa boima ba 'mele le ho ntlafatsa katleho ea phetoho ea electro-optical.
E sebelisa chip ea hona joale, BWT ka ho latellana e hlokometse mohloli oa pompo o nang le bophara ba mantlha ba 135μm NA0.22 fiber-coupled output 420W wavelength-e notletsoe ho 976nm, boleng ≈ 500g;le bophara ba mantlha ba 220μm NA0.22 faeba e kopantsoeng tlhahiso 1000W single wavelength 976nm (kapa 915nm), boleng ≈ 400g mohloli oa pompo.
Nakong e tlang, ka ntlafatso ea khanya ea semiconductor chip le katleho ea electro-optical, mehloli ea pompo e bobebe le e phahameng e tla bapala karolo e ke keng ea nkeloa sebaka ho etsoa ha mehloli e nyenyane ea matla a phahameng a fiber laser, 'me e tla khothalletsa tsoelo-pele ka mafolofolo. ea lisebelisoa tsa indasteri.
Selelekela
Li-laser tsa fiber li holile ka potlako ka lebaka la boleng ba tsona bo botle ba sepakapaka le bokhoni bo bonolo ba katoloso ea matla (li-fiber combinations).Lilemong tsa morao tjena, single-mode single-fiber fiber lasers e lekanyelitsoe ke TMI (transverse mode instability) le liphello tsa SRS, 'me matla a semiconductor direct pumping fiber laser oscillators a lekanyelitsoe ho 5kW.
[1].Laser amplifier le eona e emisitsoe ho 10kW
[2].Le ha matla a tlhahiso a ka eketsoa ka ho eketsa bophara ba mantlha ka nepo, boleng ba lebone la phallo le bona bo fokotseha -1.Leha ho le joalo, tlhoko ea ho ntlafatsa khanya ea mehloli ea pompo ea semiconductor e ntse e potlakile.
Litlhokahalo tsa boleng ba mabone lits'ebetsong tsa ts'ebetso ea indasteri ha se hakaalo hore li na le mokhoa o le mong.E le ho eketsa matla a single-fiber, mekhoa e seng mekae e tlaase e lumelloa.Ho tla fihlela joale, mehloli e fokolang ea mefuta e mengata ea fiber e kopantsoeng le beam-mode multi-mode e thehiloeng ho 976nm pumping e fetang 5kW Ka lisebelisoa tsa batch (haholo-holo ho seha le ho tjheseletsa lisebelisoa tsa tšepe), tlhahiso ea mehloli ea pompo ea matla a phahameng e tsamaisanang le eona. e boetse e batch-scaled.
E nyane, e bobebe ebile e tsitsitse
Kamano pakeng tsa semiconductor chip BPP le khanya ea mohloli oa pompo
Lilemong tse tharo tse fetileng, khanya ea 9xxnm chips e ne e le boholo ba 3W/mm*mrad@12W-100μm strip wide & 2W/mm*mrad@18W-200μm strip wide.E ipapisitse le lichifi tse joalo, BWT e fihlela 600W le 1000W 200μm NA0.22 fiber-coupled output-1.
Hajoale, ho khanya ha lichifi tsa 9xxnm ho fihletse bophara ba 3.75W/mm*mrad@15W-100μm & 3W/mm*mrad@30W-230μm bophara ba strip, mme katleho ea electro-optical ha e le hantle e bolokiloe hoo e ka bang 60%.
Ho ea ka khopolo ea tlhophiso ea sebaka se teteaneng [6], e baloa ho ea ka karolelano ea katleho ea fiber coupling ea 78% (laser emission ho tloha chip ho ea fiber coupling output: single-wavelength spatial beam e kopanyang le polarization beam e kopanyang ntle le VBG), 'me ho nahanoa hore chip e sebetsa ka matla a phahameng ka ho fetisisa ( Chip BPP e fapane le maqhubu a fapaneng), re hlophisitse 'mapa oa data ka tsela e latelang:
* Chip Brightness VS Different Core Diameter Fiber Coupling Output Power
E ka fumanoa ho tloha setšoantšong se ka holimo hore ha fiber e itseng (bophahamo ba mantlha le NA e tsitsitse) e finyella tlhahiso e itseng ea ho kopanya matla, bakeng sa li-chips tse nang le khanya e fapaneng, palo ea li-chips e fapane, le boima le boima ba mohloli oa pompo. le tsona li fapane.Bakeng sa litlhoko tsa ho pompa tsa laser fiber, haeba mohloli oa pompo o entsoeng ka litsupa tse ka holimo tse nang le khanya e fapaneng o khethiloe, boima le bophahamo ba fiber laser ea matla a tšoanang li fapane ka ho feletseng, 'me ho hlophisoa ha tsamaiso ea ho futhumatsa metsi ho boetse ho fapane. e fapaneng haholo.
Bokhoni bo phahameng, boholo bo nyane le boima bo bobebe ke litloaelo tse ke keng tsa qojoa nts'etsopele ea mehloli ea leseli ea kamoso ea laser (ebang ke diode lasers, solid-state lasers kapa fiber lasers), 'me ho khanya, katleho le matla a semiconductor chips li phetha karolo ea bohlokoa ho eona. .
Bobebe, khanya e phahameng, mohloli oa pompo ea matla a phahameng
E le ho ikamahanya le motsoako oa fiber, re khethile lintlha tse tloaelehileng tsa fiber: 135μm NA0.22 le 220μm NA0.22.Moralo oa optical oa mehloli e 'meli ea pompo o amohela tlhophiso e teteaneng ea sebaka le ho kopanya maballo a polarization.
Har'a tsona, 420WLD e amohela 3.75W/mm*mrad@15W chip le 135μm NA0.22 fiber,' me e na le VBG wavelength locking, e finyellang litlhoko tsa 30-100% ea ho koala maqhubu a matla, 'me katleho ea electro-optical ke 41%. .'Mele oa LD o entsoe ka thepa ea alloy ea aluminium le sebopeho sa sandwich [5].Li-chips tse ka holimo le tse tlase li arolelana mocha oa ho pholisa metsi, o ntlafatsang tšebeliso ea sebaka.Tlhophiso ea sebaka se bobebe, sebono le tlhahiso ea matla (matla a fiber) li bonts'itsoe setšoantšong:
*420W@135μm NA0.22 LD
Re khethile li-LD tsa 6 bakeng sa liteko tse phahameng le tse tlase tsa mocheso le ho sisinyeha.Lintlha tsa tlhahlobo ke tse latelang:
*Teko ea tšusumetso ea mocheso o phahameng le o tlase
* Teko ea vibration
1000WLD e amohela chip ea 3W/mm*mrad@30W le fiber ea 220μm NA0.22, e fihlelang tlhahiso ea 915nm le 976nm fiber-coupled ea 1000W ka ho latellana, le katleho ea electro-optical ke> 44%.'Mele oa LD o boetse o entsoe ka lisebelisoa tsa aluminium alloy.E le ho phehella tekanyo e phahameng ea matla-to-mass, khetla ea LD e nolofalitsoe tlas'a boemo ba ho netefatsa matla a sebopeho.Boleng ba LD, tlhophiso ea matheba le matla a tlhahiso (matla a fiber) ke tse latelang:
*1000W@220μm NA0.22 LD
E le ho ntlafatsa ts'epahalo ea mohloli oa pompo, fiber ea coupling end e amohela fusion ea quartz end cap fusion le theknoloji ea ho hloekisa leseli, e etsang hore mocheso oa fiber ka ntle ho mohloli oa pompo o haufi le mocheso oa kamore.Li-976nmLD tse tšeletseng li ile tsa khethoa bakeng sa liteko tse phahameng le tse tlase tsa mocheso le liteko tsa ho sisinyeha.Liphetho tsa liteko ke tse latelang:
*Teko ea tšusumetso ea mocheso o phahameng le o tlase
*Teko ea tšusumetso ea mocheso o phahameng le o tlase
* Teko ea vibration
Qetello
Ho fihlella khanya e phahameng ho tla ka litšenyehelo tsa katleho ea electro-optical, ke hore, matla a phahameng ka ho fetisisa a hlahisoang le katleho e phahameng ka ho fetisisa ea electro-optical e ke ke ea fumanoa ka nako e le 'ngoe, e khethiloeng ke khanya ea chip le maqhubu a tloaelehileng a ho kopanya. fiber.Ka har'a marang-rang a mangata a sepakapaka a kopanyang thekenoloji, khanya le katleho ke kamehla lipakane tse ke keng tsa finyelloa ka nako e le 'ngoe.Tekanyo ea katleho ea electro-optical le matla e lokela ho khethoa ho latela ts'ebeliso e khethehileng.
Litšupiso
[1] Mller Friedrich, Krmer Ria G., Matzdorf Christian, et al, "Tlhahlobo ea ts'ebetso ea Multi-kW ea Yb-doped monolithic single-mode amplifier le oscillator setup," Fiber Lasers XVI: Technology le Systems (2019).
[2] Gapontsev V, Fomin V, Ferin A, et al, "Diffraction Limited Ultra-High-Power Fiber Lasers," Advanced Solid-state Photonics (2010).
[3] Haoxing Lin, Li Ni, Kun Peng, et al, "YDF doped fiber laser ea China e fihletse tlhahiso ea 20kW ho tsoa ho fiber e le 'ngoe," Chinese Journal of Lasers, 48(09), (2021).
[4] Cong Gao, Jiangyun Dai, Fengyun Li, et al, "10-kW Ytterbium-Doped Aluminophosphosilicate Fiber ea Hae bakeng sa Tandem Pumping," Chinese Journal of Lasers, 47(3), (2020).
[5] Dan Xu, Zhijie Guo, Tujia Zhang, et al, "600 W high lightness diode laser pumping source," Spie Laser,1008603,(2017).
[6] Dan Xu, Zhijie Guo, Di Ma, et al, "High brightness KW-class direct diode laser," High-power Diode Laser Technology XVI, High-Power Diode Laser Technology XVI, (2018).
E thehiloe ka 2003, BWT ke mofani oa litšebeletso tsa tharollo ea laser lefatšeng ka bophara.Ka morero oa "Let the Dream Drive the Light" le boleng ba "Outstanding Innovation", khamphani e ikemiselitse ho theha lihlahisoa tse betere tsa laser le ho fana ka li-laser tsa diode, fiber lasers, lihlahisoa tsa laser tse potlakileng le tharollo bakeng sa bareki ba lefats'e.Ho tla fihlela joale, li-lasers tsa BWT tse fetang limilione tse 10 li sebetsa ka mokhoa o tsitsitseng linaheng le libakeng tse fetang 70 lefatšeng ka bophara.
Nako ea poso: May-11-2022