Reference posankha single-mode fiber laser

Reference posankhasingle-mode fiber laser
Mu ntchito zothandiza, kusankha yoyenera single-modelaser fiberimafuna kuyeza mwadongosolo magawo osiyanasiyana kuti zitsimikizire kuti magwiridwe ake akugwirizana ndi zofunikira za ntchito, malo ogwirira ntchito ndi zovuta za bajeti. Gawoli lipereka njira yosankha yoyenera malinga ndi zofunikira.
Kusankha njira kutengera zochitika zogwiritsira ntchito
Zofunikira pakugwirira ntchitolaserszimasiyanasiyana kwambiri pazochitika zosiyanasiyana zogwiritsira ntchito. Gawo loyamba pakusankha ndikumveketsa zofunikira pakugwiritsa ntchito.
Kukonza zinthu mwatsatanetsatane ndi kupanga ma nano ang'onoang'ono: Ntchito zotere zimaphatikizapo kudula bwino, kubowola, dicing ya semiconductor wafer, chizindikiro cha micron-level ndi kusindikiza kwa 3D, ndi zina zotero. Laser yokhala ndi M² factor pafupi ndi 1 (monga <1.1) iyenera kusankhidwa. Mphamvu yotulutsa iyenera kutsimikizika potengera makulidwe azinthu ndi liwiro la kukonza. Nthawi zambiri, mphamvu yoyambira makumi khumi mpaka mazana a Watts imatha kukwaniritsa zofunikira pakukonza yaying'ono. Pankhani ya kutalika kwa mafunde, 1064nm ndiye chisankho chomwe chimakondedwa pakukonza zinthu zambiri zachitsulo chifukwa cha kuchuluka kwake komanso kutsika mtengo pa watt iliyonse yamagetsi a laser.
Kafukufuku wasayansi ndi kuyeza komaliza: Zochitika zogwiritsira ntchito zikuphatikiza zowonera, fiziki ya atomu yozizira, mawonekedwe apamwamba kwambiri ndi interferometry. Magawowa nthawi zambiri amakhala ndi kufunafuna kwambiri monochromaticity, kukhazikika pafupipafupi komanso phokoso la ma lasers. Zitsanzo zokhala ndi mizere yopapatiza (ngakhale mafupipafupi amodzi) ndi phokoso lochepa kwambiri ayenera kupatsidwa patsogolo. Kutalika kwa mafunde kuyenera kusankhidwa potengera mzere wa resonance wa atomu kapena molekyulu inayake (mwachitsanzo, 780nm imagwiritsidwa ntchito kwambiri poziziritsa maatomu a rubidium). Kukonzekera kwa tsankho nthawi zambiri kumakhala kofunikira pakuyesa zosokoneza. Mphamvu yamagetsi nthawi zambiri sikhala yokwera, ndipo ma milliwatts mazana angapo mpaka ma watt angapo amakhala okwanira.
Medical and biotechnology: Ntchito zikuphatikizapo opaleshoni ya maso, chithandizo cha khungu ndi kujambula kwa microscopy ya fluorescence. Chitetezo chamaso ndicho chofunikira kwambiri, kotero ma laser okhala ndi mafunde a 1550nm kapena 2μm, omwe ali mugulu lachitetezo chamaso, nthawi zambiri amasankhidwa. Kwa ntchito zowunikira, chidwi chiyenera kuperekedwa ku kukhazikika kwa mphamvu; Kwa mankhwala ochiritsira, mphamvu yoyenera iyenera kusankhidwa malinga ndi kuya kwa mankhwala ndi zofunikira za mphamvu. Kusinthasintha kwa kufalikira kwa kuwala ndi mwayi waukulu muzogwiritsira ntchito zoterezi.
Kulankhulana ndi Kuzindikira: Fiber optic sensing, liDAR ndi kulumikizana kwamlengalenga ndizomwe zimagwiritsidwa ntchito. Zochitika izi zimafunalaserkukhala ndi kudalirika kwakukulu, kusinthasintha kwa chilengedwe komanso kukhazikika kwa nthawi yaitali. Gulu la 1550nm lakhala chisankho chomwe chimakondedwa chifukwa chakutayika kwapang'onopang'ono mu ulusi wa kuwala. Kwa machitidwe ozindikirika (monga coherent lidar), laser polarized polarized linewidth yopapatiza kwambiri imafunika ngati oscillator yakomweko.
2. Kusanja patsogolo kwa magawo ofunikira
Poyang'anizana ndi magawo ambiri, zisankho zitha kupangidwa potengera zofunika izi:
Zosankha zoyenera: Choyamba, dziwani kutalika kwa mafunde ndi mtundu wa mtengo. Kutalika kwa mafunde kumatsimikiziridwa ndi zofunikira pakugwiritsa ntchito (mayamwidwe azinthu, miyezo yachitetezo, mizere ya ma atomiki), ndipo nthawi zambiri palibe malo onyengerera. Mtengo wamtengowo umatsimikizira kutheka kofunikira kwa pulogalamuyo. Mwachitsanzo, makina olondola sangavomereze ma laser okhala ndi M² wokwera kwambiri.
Magawo a magwiridwe antchito: Kachiwiri, tcherani khutu ku mphamvu yotulutsa ndi m'lifupi mwake / polarization. Mphamvuyi iyenera kukwaniritsa mphamvu yamagetsi kapena zofunikira pakugwiritsa ntchito. Makhalidwe a mzere ndi polarization amatsimikiziridwa kutengera njira yaukadaulo yogwiritsira ntchito (monga ngati kusokoneza kapena kuwirikiza kawiri kumakhudzidwa). Zofunikira zothandiza: Pomaliza, ganizirani kukhazikika (monga kukhazikika kwamphamvu kwa nthawi yayitali), kudalirika (nthawi yogwira ntchito yopanda cholakwika), kugwiritsa ntchito mphamvu ya voliyumu, kugwirizanitsa mawonekedwe ndi mtengo. Magawo awa amakhudza zovuta zophatikizana komanso mtengo wathunthu wa umwini wa laser pamalo omwe amagwira ntchito.

3. Kusankha ndi chiweruzo pakati pa single-mode ndi multi-mode
Ngakhale nkhaniyi ikukamba za single-modefiber lasers, ndikofunikira kumvetsetsa bwino kufunikira kosankha mtundu umodzi pakusankha kwenikweni. Pamene zofunikira za pulogalamuyo ndizolondola kwambiri, malo ang'onoang'ono omwe amakhudzidwa ndi kutentha, kuthekera kopitilira muyeso kapena mtunda wautali kwambiri wotumizira, laser-mode fiber laser ndiye chisankho cholondola chokha. Mosiyana ndi zimenezi, ngati kugwiritsa ntchito kumakhudza kuwotcherera mbale zakuda, chithandizo chapamwamba cha malo akuluakulu kapena kufalitsa mphamvu zazifupi mtunda wautali, ndipo kufunikira kolondola kwambiri sikuli kokwera, ndiye kuti ma lasers a multimode fiber akhoza kukhala ogula komanso othandiza chifukwa cha mphamvu zawo zonse zapamwamba komanso mtengo wotsika.