Laser ifite imbaraga nyinshi ikoresha imirasire ya MOPA yose

Laser ifite imbaraga nyinshiifite imiterere ya MOPA ifite fibre zose

Ubwoko bw'ingenzi bw'imiterere ya fiber lasers burimo resonator imwe, combination y'imirasire n'imiterere ya master oscillating power amplifier (MOPA). Muri byo, imiterere ya MOPA yabaye imwe mu nzego zigezweho z'ubushakashatsi kubera ubushobozi bwayo bwo kugera ku musaruro mwiza.laser ikoresha pulseumusaruro ufite ubugari bw'amajwi bushobora guhindurwa n'umuvuduko wo gusubiramo (byitwa ubugari bw'amajwi n'umuvuduko wo gusubiramo).

Ihame ry'imikorere ya laser ya MOPA ni iri rikurikira: Oscillator nyamukuru (MO) ni isoko y'imbuto nziza cyanelaser ya semiconductorikora urumuri rw'ikimenyetso cy'imbuto rufite ibipimo bihinduka binyuze mu guhindura imiterere y'ingufu. Igenzura rikuru rya Field Programmable gate Array (FPGA) risohora ibimenyetso by'amashanyarazi bifite ibipimo bihinduka, bigenzurwa na circuit ya drive kugira ngo bikoreshe isoko y'imbuto kandi bisohoze modulation y'ibanze y'urumuri rw'imbuto. Nyuma yo kwakira amabwiriza yo kugenzura avuye ku kibaho cy'ubuyobozi cya FPGA, circuit ya pompe source drive itangira isoko y'ipompo kugira ngo itange urumuri rw'ipompo. Nyuma y'uko urumuri rw'imbuto n'urumuri rw'ipompo bihujwe na beam splitter, bishyirwa muri Yb3+ -doped double-clad optical fiber (YDDCF) muri module y'ingufu z'ingufu z'ingufu z'ingufu z'ingufu z'impombo (YDDCF) muri module y'ingufu z'ingufu z'ingufu z'impombo z'impombo. Muri iki gikorwa, iyoni za Yb3+ zifata ingufu z'urumuri rw'impombo kugira ngo zikore ikwirakwizwa ry'abaturage. Nyuma yaho, hashingiwe ku mahame yo kuzamura umuraba no gukurura imyuka, urumuri rw'ikimenyetso cy'imbuto rugera ku ngufu nyinshi muri module y'ingufu z'ingufu z'ingufu z'ingufu z'impombo z'impande ebyiri, amaherezo bigatanga imbaraga nyinshi.laser ya nanosecond pulsedBitewe n'ubwiyongere bw'imbaraga zo hejuru, ikimenyetso cy'ingufu zo hejuru gishobora kugira ubukana bw'ubugari bw'ingufu zo hejuru bitewe n'ingaruka zo gufunga. Mu bikorwa bifatika, imiterere y'ingufu zo hejuru mu byiciro byinshi ikunze gukoreshwa kugira ngo yongere imbaraga zo gutanga no kunoza imikorere.

Sisitemu ya MOPA ya laser circuit igizwe n'ikibaho cy'ingenzi cya FPGA, isoko y'ipompo, isoko y'imbuto, ikibaho cy'umushoferi, amplifier, nibindi. Ikibaho cy'ingenzi cya FPGA gitwara isoko y'imbuto kugeza ku mashanyarazi y'imbuto mbisi yo ku rwego rwa MW hamwe n'ibipimo bishobora guhinduka binyuze mu gukora ibimenyetso by'amashanyarazi bya pulse bifite imiraba ishobora guhinduka, ubugari bwa pulse (5 kugeza 200ns), n'igipimo cyo gusubiramo (30 kugeza 900kHz). Iki kimenyetso cyinjizwa binyuze muri isolator muri module y'izamuka ry'amashanyarazi y'ibice bibiri igizwe na preamplifier na amplifier nyamukuru, hanyuma igasohora laser y'ingufu nyinshi ikoresha imashini igabanya umuvuduko muke ikoresheje isolator ifite imikorere ya collimation. Isoko y'imbuto ifite icyuma gipima imbere kugira ngo gikurikirane ingufu zisohoka mu gihe nyacyo kandi kiyisubize ku ikibaho cy'ingenzi cya FPGA. Ikibaho cy'ingenzi cya control circuit cya 1 na 2 kugira ngo kigere ku bikorwa byo gufungura no gufunga amasoko ya pompe 1, 2 na 3. Iyoicyuma gipima fotoIyo inaniwe kubona urumuri rw'ikimenyetso rusohoka, ikibaho cy'ingenzi cyo kugenzura kizafunga isoko y'ipompo kugira ngo hirindwe kwangirika kwa YDDCF n'ibikoresho by'urumuri bitewe n'uko nta rumuri rw'imbuto rwinjizwamo

Sisitemu ya MOPA y’inzira y’urumuri ikoresha imiterere ya fibre yose kandi igizwe na module nyamukuru yo guhindagurika n’uburyo bwo kongera imbaraga bw’ibice bibiri. Module nyamukuru yo guhindagurika ifata diode ya laser ya semiconductor (LD) ifite ubugari bw’uburebure bwa 1064nm, ubugari bw’umurongo wa 3nm, n’imbaraga ntarengwa zo gutanga umusaruro wa 400mW nk’isoko y’imbuto, kandi ikayihuza na fibre Bragg grating (FBG) ifite reflectivity ya 99%@1063.94nm n’ubugari bw’umurongo wa 3.5nm kugira ngo habeho sisitemu yo guhitamo ubugari bw’umuraba. Module y’ubugari bw’ibice bibiri ikoresha igishushanyo cya pompe isubira inyuma, naho YDDCF ifite diameter y’ibanze ya 8 na 30μm ishyirwaho nk’uburyo bwo gukuraho. Ibipimo byo gushyiramo pompe ikoresheje coating ni 1.0 na 2.1dB/m@915nm, uko bikurikirana.