Mu 1843, a Mossander a ku Sweden adapeza element erbium. Mawonekedwe a erbium amawonekera kwambiri, ndipo kuwala kwa 1550mm kwa EP +, komwe kwakhala kukudetsa nkhawa nthawi zonse, kumakhala ndi tanthauzo lapadera chifukwa kutalika kwa mafundewa kumakhala bwino kwambiri pakusokoneza kotsika kwambiri kwa fiber optical mu fiber communication.Erbiumma ion (Er *) amasangalatsidwa ndi kuwala kwa mafunde a 880nm ndi 1480mm, ndi kusintha kuchokera ku boma loyikidwa 415/2 kupita ku boma lamalonda 213/2. Er * ikakhala m'malo opatsa mphamvu kwambiri ibwerera pansi, imatulutsa kuwala kwa 1550mm, ulusi wa Quartz umatha kutumiza mafunde osiyanasiyana a kuwala, koma kutsika kwa kuwala kumasiyanasiyana. Optical fiber yokhala ndi 1550mm frequency network imakhala ndi nthawi yotsika kwambiri yotumizira ma quartz optical fibers (o. 15a1 / krm), pafupifupi kufika kumunsi kwa chithunzicho.
(1) Choncho, pamene kuyankhulana kwa fiber optic kumagwiritsidwa ntchito ngati kuwala kwa chizindikiro pa 1550mm, kuwonongeka kwa kuwala kumachepetsedwa. Mwanjira imeneyi, ngati njira yolumikizirana yopanda doping imagwiritsidwa ntchito, amplifier imatha kuchita mogwirizana ndi mfundo ya laser. Chifukwa chake, mumanetiweki ochezera omwe amafunikira kukulitsa siginecha ya 1550mm/optical, nyambo za doped fiber amplifiers ndizofunikira kwambiri zowonera. Pakadali pano, ma doped silica fiber amplifiers akhala akugulitsidwa. Malinga ndi malipoti, pofuna kupewa kuyamwa kopanda ntchito, mtundu wa doping wa erbium mu fiber ndi makumi mpaka mazana a PPm (LpPm-10-.). Kukula mwachangu kwa kulumikizana kwa fiber optic kudzatsegula magawo atsopano ogwiritsira ntchito erbium.
(2) Kuphatikiza apo, nyambo ya laser crystal ndi kutulutsa kwake, laser 1730nm ndi 1550nm laser ndi yotetezeka kwa maso ndi ubongo wa anthu, imakhala ndi ntchito yabwino yopatsirana mumlengalenga, imakhala ndi mphamvu zolowera utsi mubwalo lankhondo, kukhala ndi chinsinsi chabwino, ndi osati zophweka kuti adani adziwike, ndikukhala ndi kusiyana kwakukulu pamene mukuwunikira zolinga zankhondo. Apangidwa kukhala chonyamula laser rangefinder kuti agwiritse ntchito pankhondo, chomwe chili chotetezeka kwa anthu.
(3) BP + ikhoza kuwonjezeredwa pagalasi kuti ipange zida za laser zapadziko lapansi, zomwe pakali pano ndi zida za laser zolimba kwambiri zomwe zimakhala ndi mphamvu zambiri zotulutsa mphamvu komanso mphamvu zotulutsa.
(4) Ep + itha kugwiritsidwanso ntchito ngati ion yotsegulira posinthira zida za laser.
(5) Komanso, erbium angagwiritsidwenso ntchito decolorization ndi mitundu magalasi maso ndi galasi crystalline.
Nthawi yotumiza: May-09-2023