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

(Er,Yb: phosphate glass) ka whakakotahi i te roa o te oranga (~8 ms) o te taumata laser i runga i te 4 I 13/2 Er 3+ me te iti (2-3 ms) o te taumata 4 I 11/2 Er 3+ Te Ora, ka taea te whakaputa i te resonance F 5/2 te ahua hikaka me te Yb 3+ 2 . Tere whakangā nonradiative multiphonon mai i te 4 I 11/2 ki te 4 I 13/2 na te tauwhitinga i waenga i te Yb 3+ me te Er 3+ katote hihiko i te 2 F 5/2 me te 4 I 11/2, ka tino whakaitihia e tenei taumata kaha te whakawhiti hiko o muri me te ngaronga o te hurihanga.
Er 3+ , Yb 3+ co-doped yttrium aluminum aluminate borate (Er,Yb:YAB) crystals are commonly used Er, Yb:phosphate glass alternatives and can be used as “kanohi-haumaru” active medias (1,5 -1,6 μm) lasers with high average output power in CW and pulsed modes. Ko te ahua o te kawe werawera teitei o te 7,7 Wm-1 K-1 me te 6 Wm-1 K-1 i te taha o te tuaka-a me te tuaka-c. He kaha nui hoki te Yb 3+→Er 3+ te whakawhiti pūngao (~ 94%) me te ngoikoretanga o te huringa whakahuritanga e tohuhia ana ki te wa poto rawa (~ 80 ns) o te 4 I 11/2 te ahua hihiko na te kaihautu Ko te kaha o te phonon teitei he teitei (vmax ~1500 cm-1). I kitea he roopu whakauru kaha me te whanui (tata ki te 17 nm) i te 976 nm, e rite ana ki te awhi tukunga o te ngohe laser InGaAs.