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

(Er,Yb: aniani phosphate) hoʻohui i ke ola lōʻihi (~8 ms) o ka pae laser ma 4 I 13/2 Er 3+ me ka haʻahaʻa (2-3 ms) o ka pae 4 I 11/2 Er 3+. ʻO ke ola, hiki ke hoʻohua i ka resonance F 5/2 kūlana hauʻoli me Yb 3+ 2 . ʻO ka hoʻomaha hoʻomaha multiphonon nonradiative wikiwiki mai 4 I 11/2 a i 4 I 13/2 ma muli o nā pilina ma waena o Yb 3+ a me Er 3+ iona i hoʻohauʻoli ʻia ma 2 F 5/2 a me 4 I 11/2, kēlā me kēia, ua hoʻemi nui kēia pae ikehu i ka hoʻihoʻi ikehu hoʻoili a me ka up-hoololi poho.
Er 3+ , Yb 3+ co-doped yttrium aluminum aluminate borate (Er,Yb:YAB) crystals ua hoʻohana mau ʻia ʻo Er, Yb: phosphate glass alternatives a hiki ke hoʻohana ʻia ma ke ʻano he "eye-safe" active media (1,5 -1). ,6 μm) nā lasers me ka mana puka kiʻekiʻe ma CW a me nā mode pulsed. Hōʻike ʻia ʻo ia e ka conductivity thermal kiʻekiʻe o 7,7 Wm-1 K-1 a me 6 Wm-1 K-1 ma ke ʻano a-axis a me c-axis, kēlā me kēia. Loaʻa iā Yb 3+→Er 3+ ka hoʻoili ikehu kiʻekiʻe (~ 94%) a me ka nawaliwali o ka upconversion nalowale i pili i ke ola pōkole loa (~ 80 ns) o ka 4 I 11/2 hauʻoli ma muli o ka mea hoʻokipa ʻO ka ikehu phonon kiʻekiʻe. kiʻekiʻe (vmax ~1500 cm-1). Ua ʻike ʻia kahi pūnaʻi absorption ikaika a ākea (e pili ana i 17 nm) ma 976 nm, kūlike me ka spectrum emission o kahi diode laser InGaAs.