Er,YB:YAB-Er, Yb Co – Doped Phosphate Glass

(Er,Yb: galasi la phosphate) limaphatikiza nthawi yayitali ya moyo (~8 ms) ya mulingo wa laser pa 4 I 13/2 Er 3+ ndi otsika (2-3 ms) a 4 I 11/2 Er 3+ level Lifetime, imatha kupanga resonance F 5/2 dziko losangalala ndi Yb 3+ 2 . Fast nonradiative multiphonon relaxation kuchokera ku 4 I 11/2 mpaka 4 I 13/2 chifukwa cha kuyanjana pakati pa Yb 3+ ndi Er 3+ ions okondwa pa 2 F 5/2 ndi 4 I 11/2, motero, mlingo wa mphamvu uwu umachepetsa kwambiri kusuntha kwa mphamvu kumbuyo ndi kutayika kwa kutembenuka.
Er 3+ , Yb 3+ co-doped yttrium aluminium aluminate borate (Er,Yb:YAB) makhiristo amagwiritsidwa ntchito kwambiri Er,Yb:phosphate glass alternatives ndipo angagwiritsidwe ntchito ngati ma laser "otetezedwa ndi maso" (1,5 -1,6 μm) okhala ndi mphamvu zambiri zotulutsa mu CW ndi ma pulsed modes. Imadziwika ndi matenthedwe apamwamba a 7,7 Wm-1 K-1 ndi 6 Wm-1 K-1 motsatana ndi axis ndi c-axis, motsatana. Komanso ili ndi mphamvu zambiri za Yb 3+→Er 3+ kutumiza mphamvu (~ 94%) ndi kutayika kofooka kwa kutembenuka komwe kumachitika chifukwa cha moyo waufupi kwambiri (~ 80 ns) wa 4 I 11/2 dziko lokondwa chifukwa cha wolandirayo Mphamvu yaikulu ya phonon ndiyokwera (vmax ~ 1500 cm-1). Bandi yamphamvu komanso yotakata (pafupifupi 17 nm) idawonedwa pa 976 nm, yogwirizana ndi kutulutsa kwa inGaAs laser diode.