Inzira nziza yuburyo bwa polarize fibre ifatanye-umurongo wa laser

Inzira nziza yuburyo bwa fibre fibreUmuyoboro muto

1. Incamake

1018 nm polarize fibre ifatanye-umurongo wa laser. Uburebure bwumurongo ni 1018 nm, ingufu za laser zisohoka ni 104 W, ubugari bwikigereranyo cya 3 dB na 20 dB ni ~ 21 GHz na ~ 72 GHz, igipimo cyo kuzimangana ni> 17.5 dB, kandi ubwiza bwibiti buri hejuru (2 x M - 1.62 na 2 y M) ASisitemuhamwe nuburinganire bwa 79% (∼1.63).

2. Ibisobanuro byiza byinzira

Muri apolarize fibre ifatanye-umurongo wa laser, umurongo wa polarize fibre laser oscillator igizwe na jambo ya polarisiyasi ikomeza fibre hamwe na metero 1.5 z'uburebure bwa metero 10/125 μm ytterbium-ikubye kabiri yambaye polarisiyasi ikomeza fibre nkinyungu zunguka. Coefficient yo kwinjiza iyi fibre optique kuri 976 nm ni 5 dB / m. Laser oscillator ivomwa na 976 nm yumurambararo ufunzesemiconductor laserhamwe nimbaraga ntarengwa za 27 W binyuze muri polarite-kubungabunga (1 + 1) × 1 ikomatanya. Igikoresho kinini cyo kumurika gifite icyerekezo kirenga 99%, naho umurongo wa 3 dB ugereranya ni 0.22 nm. Ubushobozi buke bwo gusya ni 40%, naho umurongo wa 3 dB ugaragaza ni 0.216 nm. Uburebure bwo hagati bwerekana uburebure bwombi buri kuri 1018 nm. Kuringaniza imbaraga zisohoka za laser resonator hamwe nigipimo cyo guhagarika ASE, kugaragariza hasi kwa grating byashyizwe kuri 40%. Umurizo wumurizo wa gritingi-yerekana cyane uhujwe na fibre yunguka, mugihe fibre umurizo wa gritingi nkeya yerekana izunguruka 90 ° hanyuma igahuzwa na fibre umurizo wa filteri yuzuye. Rero, umwanya wimpanuka wihuta-axis yerekana umurongo wuburebure bwikigereranyo cyo hejuru cyo gufatana guhuza nubwa buhoro buhoro umurongo wo kugaragariza uburebure bwumurambararo muto. Muri ubu buryo, lazeri imwe yonyine irashobora guhindagurika mu cyuho cya resonant. Itara risigaye rya pompe muri fibre optique yungururwa nayungurujwe yakozwe na filteri yonyine yometse mu kavuyo ka resonant, hanyuma ingurube isohoka irashishwa na 8 ° kugirango birinde ibitekerezo byanyuma no guhindagurika kwa parasitike.

3. Ubumenyi bwibanze

Uburyo bwibisekuruza byumurongo wa fibre fibre: Bitewe no guhangayika birefringence, fibre imeze nk'isaro-fibre ikomeza fibre ifite imihoro ibiri ya orthogonal polarisation, izwi nka axis yihuta na axe gahoro. Mubisanzwe, kubera ko indangantego yo kwangirika ya axe itinze iruta iy'umuvuduko wihuse, urusyo rwanditse kuri fibre-kubungabunga fibre ifite uburebure bubiri bwo hagati. Umuyoboro wa resonant ya fibre laser ya polarize isanzwe igizwe nibice bibiri bikomeza polarisiyasi. Uburebure bwumurambararo wo hasi-kugaragariza hamwe no kwerekana-hejuru-gufatira kumurongo wihuse hamwe na buhoro buhoro. Iyo umurongo wo kwerekana umurongo wa polarisiyasi-ukomeza gusya ni muto bihagije, ihererekanyabubasha mu muvuduko wihuse hamwe n’icyerekezo cyihuta gishobora gutandukana, kandi uburebure bwumuraba bwombi bushobora kunyeganyega mu cyuho cya resonant. Ukurikije ihame rya kabiri-ihindagurika ry’amahame ya polarisiyasi-kubungabunga urusyo, mu bushakashatsi, uburyo bwo gusudira bubangikanye bushobora gukoreshwa kugira ngo bugerweho. Mugihe cyo gusudira, polarisiyasi-ikomeza amashoka ya bibiri byishimishije. Muri ubu buryo, impinga ebyiri zoherejwe zo hejuru-zifata ibyuma bihuza cyane n’ibisya bike, bityo rero ibyuka-by-uburebure bwa lazeri bishobora kugerwaho.

Muburyo bwa laser polarisiyasi-kubungabunga sisitemu, umurongo wa skew ni ikimenyetso cyingenzi cyo gusuzuma ibisohoka biranga umurongo wa polarize. Mubisanzwe, igihe cyo gufatira hejuru-gusya ni kinini kuruta icyuma gike. Kugirango ugere kumurongo wa lazeri ifite umurongo muremure wa PER, impinga imwe yonyine ikeneye kunyeganyega. Iyo umuvuduko wihuse wo gufatira hasi-kugaragariza ni buhoro buhoro umurongo wo hejuru wo kugaragariza hejuru, Umuhengeri wo hagati mu cyerekezo cyihuta cyerekezo cyerekezo cyo hasi ugereranya uhuza nu murongo ugenda werekeza buhoro buhoro icyerekezo cyo hejuru, mugihe ihererekanyabubasha ryerekezo ryihuta ryerekanwa ryerekanwa rito. Muri ubu buryo, impinga imwe yo kwanduza irashobora kunyeganyega. Mu buryo busa nabwo, iyo buhoro buhoro umurongo wo kugabanura urumuri ruri hafi yihuta yihuta yo gufatana hejuru, uburebure bwumurambararo wo hagati wa buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro buhoro. Muri ubu buryo, impinga imwe yohereza nayo irashobora kunyeganyega. Inzira zombi zavuzwe haruguru zirashobora kugera kumurongo wa polarize. Ukurikije umurongo umwe-wumurongo wa polarisiyonike ya lazeri ihindagurika ihame rya polarisiyasi-kubungabunga urusyo, mubigeragezo, uburyo bwo guteranya orthogonal burashobora gukoreshwa kugirango ubigereho. Iyo Inguni ihindagurika ya axe ya polarisiyasi ikomeza ishoka yo hejuru yo gufatana hejuru hamwe no gusya hasi ni 90 °, impinga yohereza mu cyerekezo cyihuta cyerekezo cyerekanwe hejuru ihuye nimpinga yohereza mu cyerekezo cyihuta cyerekezo cyo hasi cyerekana, bityo rero umusaruro w’umurongo umwe w’umurongo wa fibre lazeri urashobora kugerwaho.