Ukwakheka kwesistimu ye-laser ye-fiber enamandla aphezulu

Ukwakheka kwesistimu ye-laser ye-fiber enamandla aphezulu
1, Ukwakheka kwesistimu
I-laser yefayibha enamandla amakhulu inezingxenye ezine: umthombo wephampu, i-pump combiner, i-gain fiber, kanye ne-laser output head
1.1 Umthombo wephampu: Amandla okukhipha edayisi elilodwa le-laser angama-10W ~ 50W kuphela, kanti ama-dies angu-6 ~ 50 azohlanganiswa futhi apakishwe ngokwesidingo; Uma kunenqwaba yama-chips, ukuhlanganiswa kwe-spatial beam kanye nokuhlanganiswa kwe-polarisation beam kuzohlanganiswa ukuze kwandiswe amandla. Amandla omthombo wephampu owodwa asukela kumashumi kuya kumakhulu ama-watts, futhi ukuze kufezwe umphumela wezinga le-kilowatt, kudingeka kuxhunywe imithombo yephampu engaphezu kwe-10 ngokulandelana (njenge-laser ye-Ruike kusetshenziswa inhlanganisela yemithombo yephampu engu-11).
1.2 Isihlanganisi sephampu: Esikhiqizwa ngobuchwepheshe bokuhlanganisa i-fiber fusion, amamojula amaningi ephampu ahlanganiswa ngokubonakalayo abe yifayibha efanayo.
1.3 I-Gain fiber: enobude obuvame ukudlula amamitha angu-30, izohlanganiswa futhi ibekwe epuletini lokusabalalisa ukushisa, ngokuvamile kusetshenziswa isakhiwo se-ytterbium doped double cladding: ububanzi obuyinhloko obungu-10-20 μ m, i-single mode/few mode waveguide, efakwe ama-ion e-ytterbium; Ububanzi be-cladding yangaphakathi bufinyelela ku-400 μ m futhi busetshenziselwa ukudlulisa ukukhanya kwephampu yemodi eminingi.
1.4 Inhloko Yokukhipha I-Laser: Inesibopho sokukhishwa kokugcina kwe-laser futhi ingaxhunywa kumishini yokucubungula nge-interface ejwayelekile.
2, isimiso sokusebenza esiyinhloko
2.1 I-Resonator yokukhulisa ukukhanya: yakhiwe yi-fiber Bragg gratings (FBGs): i-grating yokubonakalisa ephezulu (reflectivity>99%) ibonisa ukukhanya kwe-wavelength eqondiwe (njenge-1080nm) emuva ku-fiber yokuzuza; I-grating ehlanganisiwe yokukhipha (reflectivity 10% ~ 50%) ibonisa kancane ukuze kulondolozwe i-oscillation, futhi idlulisela kancane ukuze yakhe umphumela. Ukukhanya kwephampu kuvusa ama-ion e-ytterbium ukuze kukhiqizwe ukukhishwa okuzenzakalelayo, futhi ama-photon ahlangabezana nezidingo ze-wavelength akhuliswa ngokuphindaphindiwe phakathi kwe-gratings, ekugcineni akha umkhiqizo we-laser ozinzile.
2.2 Ukukhethwa kwemodi kuqinisekisa ikhwalithi yokukhanya: Ngakolunye uhlangothi, kuncike ekulinganiselweni kwe-waveguide kwengqimba encane yobubanzi, kuphela ukudluliselwa kokulahlekelwa okuphansi kwemodi eyisisekelo okuvunyelwe; Ngakolunye uhlangothi, ngokusebenzisa ukugqagqana okuphezulu phakathi kwemodi eyisisekelo kanye ne-gain medium (ama-ion e-ytterbium), kanye nezici zokulahlekelwa okuphezulu kwemodi ye-higher-order, kuhlanganiswe nomklamo wokugoba i-fiber ukuze kuhlungwe izindlela ze-higher-order, umphumela wemodi eyisisekelo esezingeni eliphezulu ene-M² esondela ku-1 ekugcineni uyatholakala.