Ma laser a fiber m'munda wa kulumikizana kwa ulusi wa kuwala

Ma laser a fiber m'munda wa kulumikizana kwa ulusi wa kuwala

TheLaser ya Ulusiamatanthauza laser yomwe imagwiritsa ntchito ulusi wagalasi wosowa wa nthaka ngati njira yopezera mphamvu. Ma laser a fiber amatha kupangidwa kutengera ma fiber amplifier, ndipo mfundo yawo yogwirira ntchito ndi iyi: tengerani laser ya fiber yopompedwa motalikirapo ngati chitsanzo. Gawo la ulusi wopompedwa ndi ma ayoni achitsulo chosowa cha dziko lapansi limayikidwa pakati pa magalasi awiri okhala ndi reflectivity yosankhidwa. Kuwala kwa pampu kumalumikizana ndi ulusi kuchokera pagalasi lakumanzere. Galasi lakumanzere limatumiza kuwala konse kwa pampu ndikuwunikira laser kwathunthu, kuti ligwiritse ntchito bwino kuwala kwa pampu ndikuletsa kuwala kwa pampu kuti kusawonekere ndikuyambitsa kuwala kosasunthika kotulutsa. Endoscope yakumanja imalola gawo la laser kudutsa kuti lipange mayankho a kuwala kwa laser ndikupeza kutulutsa kwa laser. Ma photon pa kutalika kwa nthawi ya pampu amatengedwa ndi medium, ndikupanga inversion ya nambala ya ion, ndipo pamapeto pake amapanga kutulutsa kolimbikitsidwa mu medium ya fiber yosowa wa doped kupita ku laser yotulutsa.

Makhalidwe a ma laser a ulusi: Kugwira ntchito bwino kwambiri chifukwa chipangizo cha laser chokha ndicho chowongolera mafunde. Kugwira ntchito bwino kwambiri, malire otsika komanso kutentha bwino; Chili ndi mgwirizano wosiyanasiyana, kufalikira bwino komanso kukhazikika. Ma laser a ulusi amathanso kumvedwa ngati chosinthira mafunde chogwira ntchito bwino, kutanthauza kuti, kusintha mafunde a kuwala kwa pampu kukhala mafunde ocheperako a ma ayoni a dziko lapansi opangidwa ndi doped rare earth. Mafunde ocheperako awa ndi mafunde otulutsa kuwala kwa fiber laser. Sichimayang'aniridwa ndi mafunde a pampu ndipo chimangodziwika ndi zinthu zongopeka za dziko lapansi zomwe zili muzinthuzo. Chifukwa chake, ma laser a semiconductor a mafunde afupiafupi osiyanasiyana ndi mphamvu yayikulu yogwirizana ndi ma spectra a ma ayoni a dziko lapansi opangidwa ndi rare earth angagwiritsidwe ntchito ngati magwero a pampu kuti apeze mafunde osiyanasiyana a laser.

Kugawa kwa fiber laser: Pali mitundu yambiri ya ma fiber laser. Malinga ndi njira yopezera phindu, amatha kugawidwa m'magulu monga: ma fiber laser opangidwa ndi rare earth doped, ma fiber laser osakhala ndi mzere, ma fiber laser a single crystal, ndi ma fiber laser a pulasitiki. Malinga ndi kapangidwe ka fiber, amatha kugawidwa m'magulu monga: ma fiber laser opangidwa ndi single-clad ndi ma fiber laser opangidwa ndi double-clad. Malinga ndi zinthu zopangidwa ndi dope, amatha kugawidwa m'magulu opitilira khumi monga erbium, neodymium, praseodymium, ndi zina zotero. Malinga ndi njira yopopera, imatha kugawidwa m'magulu monga: optical fiber end face pumping, micro prism side optical coupling pumping, ring pumping, ndi zina zotero. Malinga ndi kapangidwe ka resonant cavity, amatha kugawidwa m'magulu monga: FP cavity fiber lasers, annular cavity fiber lasers, "8″ shaped cavity lasers, ndi zina zotero. Malinga ndi momwe ntchito ikuyendera, amatha kugawidwa m'magulu monga: pulsed optical fiber ndi continuous laser, ndi zina zotero. Kukula kwa ma fiber lasers kukuchulukirachulukira. Pakadali pano, mitundu yosiyanasiyanama laser amphamvu kwambiri, ma laser afupiafupi kwambirindima laser osinthika okhala ndi mzere wopapatizaakutuluka limodzi pambuyo pa lina. Kenako, ma laser a fiber adzapitiriza kukula m'njira zomwe mphamvu yotulutsa imakwera kwambiri, kuwala kwabwino, komanso kugunda kwa mtima kumakwera kwambiri.