Ngo-2021, i-China iya kuba kuphela koqoqosho olukhulu emhlabeni oluya kubuyela ngokukhawuleza kubhubhani ka-2020.Ixabiso elongeziweyo lemizi-mveliso elingaphezu kobukhulu obumiselweyo kunyaka wonke liza kunyuka nge-9.6% kulo nyaka uphelileyo, apho ixabiso elongezelelweyo lemveliso yobugcisa obuphezulu kunye nokuveliswa kwezixhobo liya kunyuka ngokulandelelanayo.18.2%, 12.9%.Ngokukodwa, imboni ye-laser yaseTshayina iphuhliswe ngokukhawuleza kwiminyaka yakutshanje, kwaye isikali se-laser industry chain sanda ngokukhawuleza.Ngo-2020, ingeniso yokuthengisa iyonke izixhobo laser (kubandakanywa nokungenisa) kwiinkalo zoshishino, ulwazi, urhwebo, amayeza kunye nophando lwenzululwazi iya kuba yuan 69,2 billion, ukunyuka konyaka-on-nyaka phezu 2019. up 5,2 ekhulwini amanqaku.Ngokuchuma okuqhubekayo kwe-photovoltaic, ibhetri yamandla, iimoto kunye namanye amashishini, ingeniso yokuthengisa iyonke yemarike yezixhobo ze-laser yaseTshayina iya kunyuka nge-15.6% unyaka nonyaka ngo-2021, ifikelele kwi-80 yezigidigidi.
▲2010-2021 imarike izixhobo laser China
Kwangaxeshanye, itekhnoloji yelaser iphinda iphindaphindeke ngokukhawuleza.Okokuqala, iteknoloji yempompo iguqulwa ukusuka kwisisombululo se-915nm kunye nommandla obanzi wokulawula ukushisa kwisisombululo se-976nm kunye nokusebenza kakuhle okuphezulu.Okwangoku, kwindlela yetekhnoloji yempompo ye-laser ye-fiber eqhubekayo yamandla, iteknoloji ye-976nm yepompo yePu iye yaba sisisombululo sobugcisa esiqhelekileyo.Ukongeza, kwitekhnoloji ye-10,000-watt lasers, bekusoloko kukho imfazwe phakathi "kwe-fiber amplification ye-channel enye" kunye "ne-multi-channel beam synthesis".Imakethi iyaqhubeka nokuphuhlisa, kunye nezinto ezibanzi ezifana netekhnoloji, iindleko kunye nokusebenza kakuhle Kuye kwaba yinto ephambili yokukhetha imakethi ye-fiber laser yeshishini.Masicazulule iindlela ezimbini zobugcisa.
I-10,000-watt ye-laser yendlela yendlela yeteknoloji
1. Iskimu sokudityaniswa kwemiqadi emininzi
Ngokweendlela ezahlukeneyo zenkqubo, iilaser zefiber zinokwahlulwa zibe: i-oscillator structure fibre lasers kunye ne-master oscillator power amplifier (MOPA) i-fiber lasers.I-fiber laser ene-oscillator structure ilula kwisakhiwo kwaye iqulethe i-laser oscillator kuphela, kwaye i-grating ikhetha kwaye ikhuphe i-wavelength ethile ekhethiweyo.
Kwi-laser ye-fiber ene-oscillator configuration, eyona nto iqulethe i-pair of gratings (i-low reflection + high reflection), i-fiber yokufumana, kunye neepompo ezininzi.Imiqadi emininzi yokukhanya kwempompo kudityaniswa ibe yifayibha yokuzuza ngokudibanisa umqadi, ukuze ifayibha yokufumana ikwimo yokuhanjiswa kwenani lamasuntswana, ukuze kuqondwe ukunyuswa kwemitha yokukhulisa ukukhanya, kwaye ekugqibeleni ukhethe i ubude obuthile bokukhanya kwelaser ngokusebenzisa igrayiti ebonakalisayo ephantsi ukudlula kwifiber ephumayo.igqithiselwe kwi-header yemveliso.
▲ I-Fiber laser esekelwe kwisakhiwo se-oscillator ngqo
Ngokweendlela ezahlukeneyo zokumpompa, inokwahlulwa ibe: ukupompa phambili, ukupompa umva kunye nokupompa kabini.Isalathiso sesitofu sokukhanya kwempompo siyafana nesalathiso sokuphuma kwelaser sibizwa ngokuba kukupompa phambili;isalathiso sempompo yokukhanya kwempompo siyafana nesalathiso se-laser esichasene nokumpompa kwangaphambili kunye nokubuyela umva;ukukhanya kwempompo kujojowe ukusuka phambili kunye nezikhombisi-ndlela ngaxeshanye.ebizwa ngokuba yi-bidirectional pumping.Okwangoku, zombini i-GW kunye ne-IPG zisebenzisa i-bidirectional pumping scheme eboniswe kumzobo ongentla.
Okwangoku, i-laser ye-fiber okanye imodyuli ene-oscillator ye-oscillator engundoqo inamandla malunga ne-3KW, kwaye i-laser ephezulu yamandla idityaniswe ukusuka kwimodyuli enye ukuya kwenye, oko kukuthi, ukuphuma kokukhanya kwiimodyuli ezininzi kudityaniswa ngokudibanisa umqadi. .kwifiber kwaye emva koko imveliso.Umzekelo, i-12KW ifunyenwe ngokudibanisa iimodyuli ezine ze-3KW.
▲ I-laser ye-fiber ye-high-power ene-multi-channel beam synthesis scheme
2. Iskim sokukhulisa ifayibha yetshaneli enye
I-fiber laser enesakhiwo se-MOPA ibandakanya i-laser oscillator kunye nenqanaba elinye okanye ngaphezulu kwe-fiber amplifiers.Ubude obude obukhethwe yi-grating kwi-oscillator isetyenziswe njengokukhanya kwembewu, kwaye ukukhanya kwembewu kwandiswa phantsi kwesenzo se-amplifier ye-multistage, ukwenzela ukuba amandla aphumayo afumaneke kwinqanaba elithile.ukuphuculwa.
Kwii-lasers ezinamandla ezinjalo, ukunyuka kwamandla akufezeki ngokunyusa inani leemodyuli, kodwa ngokukodwa ngama-amplifiers amanqanaba amaninzi.Umzekelo, i-12KW ifumaneka nge-3-stage amplification.
▲ Iskimu sokukhulisa ifayibha yetshaneli enye esekwe kuqwalaselo lwe-MOPA Ilaser yamandla aphezulu
Izinto eziluncedo zokuphindaphinda i-10,000-watt lasers
I-1.Isakhiwo somatshini wonke silula kwaye kulula ukuwugcina
Ekubeni i-laser-channel-amplified high-power laser inemodyuli enye kuphela, ukulungiswa kwangaphakathi kokukhanya, umbane kunye namanzi kunzima ngakumbi.Inkqubo yolawulo lwayo inzima ngakumbi, kwaye i-oscillator kunye neamplifier kufuneka ilandele ubudlelwane obuthile bexesha xa ivula kwaye icima: xa uvula i-laser, i-oscillator kufuneka ivulwe kuqala, kwaye emva koko i-amplifier kufuneka ivulwe iamplifier yenqanaba lokuqala;I-amplifier yeqonga iqala, kwaye i-amplifier icinyiwe inyathelo ngenyathelo ukuya phambili.Nje ukuba ixesha liphumile kucwangco, kunokwenzeka ukuba kubangele umonakalo omkhulu kwilaser.
I-multi-beam synthesis scheme eyamkelwe yi-GW laser, ulawulo lwe-laser lulula, akukho ngxaki yexesha, iingxaki zokulawula inkqubo, kwaye ayiyi kubangela umonakalo kumatshini.Kwimeko yokungaphumeleli kwe-laser, ukulungiswa kunokufezekiswa ngokulula ngokususa imodyuli eyonakalisiweyo kwaye ithathelwe indawo entsha.Kubathengi, igcina ixesha elininzi lolondolozo.
2. Ukwazi ukukhanya okuchasene nokubuyiswa okunamandla
Ngokwahlukileyo kwi-oscillators, akukho grating kuzo zombini iziphelo zefiber yenzuzo yeamplifier.Ukukhanya okubuyiswayo xa kulungiswa izinto eziphezulu zokubonisa okanye ukukhanya kwe-post-amplifier kulula ukubuyela kwi-pre-amplifier, ephazamisa umsebenzi we-pre-amplifier kwaye ibangele umonakalo.Ngoko ke, kuyimfuneko ukuba kufakwe imilinganiselo eyongezelelweyo yokuhlukanisa i-optical.
I-GW laser's multi-beam synthesis scheme, imodyuli nganye ine-oscillator enye kuphela, kwaye akukho kukhanya okubuyela umva;kwangaxeshanye, imfihlo eyodwa yeGW laser – ABR anti-high-reflection technology: imodyuli enye ixhotyiswe ngesixhobo sokubona ukukhanya okubuyiswayo kwamanqanaba amahlanu kunye nesixhobo sokuhluba; imodyuli enye, imodyuli nganye ixhotyiswe ngesixhobo sokukhanya esichasene ne-return-level yokuqala, enokukhusela ngokufanelekileyo amacandelo angaphakathi kumonakalo, ukuqinisekisa ukusebenza okuzinzileyo kwe-laser, kunye nokusika ngokulula igolide, isilivere, izinto ezibonisa kakhulu ezifana nobhedu kunye i-aluminium ifanelekile kwizicelo ezahlukeneyo ze-welding.
3. I-Bidirectional pumping iphucula ukuzinza kwenkqubo
➢Nxinzelela ingxolo yelaser
Ukumpompa phambili kunye nokubuyisela umva, ukukhanya kwempompo kufakwe kwifayibha ye-ytterbium-doped ukusuka kwelinye icala, kwaye ukukhanya kwepompo kunamandla ekupheleni kwegalelo le-ytterbium-doped fiber, ngoko ke i-particle inversion excitation inamandla, kodwa ngenxa into yokufunxa, ukukhanya okumpompa kunamandla.Ukukhanya kuya kucuthwa ngobude bosinga ukuze i-saturation yenzuzo ifikelelwe kubude obuthile bosinga kwaye ingxolo inyuke.Ukupompa kwe-Bidirectional kungenza ukukhanya kwempompo kuhanjiswe ngokulinganayo kwifiber, ukwenzela ukuba inzuzo nayo isasazwe ngokulinganayo kwifiber, ukwenzela ukuba ingxolo iyancipha.
➢Nceda uxinzelelo olungapheliyo
Amandla okukhanya okumpompa okugqithisileyo adityaniswa kwifayibha yokufumana, kwaye icandelo lokuqala lokufumana ifayibha lifunxa ukukhanya kwempompo kakhulu, ke ngoko iqondo lobushushu lefayibha lelona liphezulu kwicandelo lokuqala, kwaye indawo yokunyibilika kwefayibha inoxinzelelo olukhulu.Ukumpompa kabini ekupheleni kunokukwenza ukuba iindawo ezimbini zokunyibilika kumacala omabini efayibha yokuzuza ukwabelana ngoxinzelelo, okwenza inkqubo iqhube ngokuzinzileyo.
➢Yandisa umda wokungazinzi kwemo
Ukungazinzi kwemodi kuhambelana nokulayishwa kwe-thermal ye-fiber yokufumana.Emva kokuba indlela yokupompa ephindwe kabini yamkelwe, ukuhanjiswa kweqondo lokushisa kwefayibha yokuzuza kunokwenziwa ngokufana ngakumbi, umphumo we-thermal uyancipha, kwaye ixabiso lomda wokungazinzi kwemowudi liyenyuka.4
.Iskimu sokumpompa se-976nm sineenzuzo ezicacileyo
▶ Izinga eliphezulu loguqulo
I-Ytterbium-doped fiber ineencopho ezimbini zokufunxa ezomeleleyo kwi-915nm kunye ne-976nm, ngoko ke ibhendi yokukhanya yempompo edla ngokukhethelwa i-ytterbium-doped fiber laser yi-915nm okanye i-975nm.Phakathi kwazo, i-absorption peak kwi-975nm iphezulu, malunga namaxesha e-3 e-915nm, ngoko i-laser ye-1070nm enamandla afanayo idla isinye kwisithathu se-915nm impompo yokukhanya.Isibane sempompo siguqulwa sisuka kumandla ombane, okuthetha ukuba ukusebenzisa umthombo wempompo ye-976nm kudla amandla ombane amancinci kwaye kusebenza ngakumbi kwaye ukonga amandla.
▶Iziphumo ezisezantsi ezingahambelaniyo
Kwi-fiber laser eqhubekayo, kukho iziphumo ezingahambelaniyo, ezinje ngokusasazwa kweBrillouin, ukusasazwa kweRaman, kunye nesiphumo seKerr esibonakalayo, esiya kuthoba umgangatho we-beam.Ukuzuza kwincopho ephezulu yokufunxa kwi-976nm, ifayibha yokufumana inokwenziwa ibe mfutshane phantsi kwesiseko sokusebenza kakuhle kokufunxa, kwaye ukunciphisa ubude befiber kunceda ukunqanda ukucinezela iziphumo ezingezizo.
Epilogue
I-GW Laser (GW) isekelwe kwi-976nm iteknoloji yepompo kunye neskimu se-multi-channel beam synthesis njengomgca oyintloko, kwaye uzibophelele ekuphuculeni umgangatho wamandla kunye nomgangatho we-beam ye-10,000-watt lasers;kwangaxeshanye, ikwanika ingqwalasela ekuphuculeni umgangatho kunye nokuzinza kweemveliso, ukunciphisa izinga lokungaphumeleli kwemveliso kunye nobunzima bokuphatha ukusilela.Kwixesha elizayo, siya kuqhubeka nokubonelela abathengi nge-laser fibers ezikumgangatho ophezulu kunye nenkxaso eyomeleleyo yobugcisa.
Ixesha lokuposa: Mar-21-2022