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

(Er, Yb: phosphate iav) sib txuas lub neej ntev (~ 8 ms) ntawm qib laser ntawm 4 I 13/2 Er 3+ nrog qis (2-3 ms) ntawm 4 I 11/2 Er 3+ theem Lub Neej, tuaj yeem tsim resonance F 5/2 zoo siab lub xeev nrog Yb 3+ 2 . Fast nonradiative multiphonon so los ntawm 4 I 11/2 mus rau 4 I 13/2 vim muaj kev cuam tshuam ntawm Yb 3+ thiab Er 3+ ions txaus siab ntawm 2 F 5/2 thiab 4 I 11/2, raws li, qib zog no txo qis rov qab lub zog hloov pauv thiab nce kev hloov pauv.
Er 3+, Yb 3+ co-doped yttrium aluminium aluminate borate (Er, Yb: YAB) crystals feem ntau siv Er, Yb: phosphate iav lwm txoj kev thiab tuaj yeem siv ua "qhov muag-kev nyab xeeb" active media (1,5 -1,6 μm) lasers nrog siab nruab nrab tso zis hwj chim hauv CW thiab pulsed hom. Nws yog tus cwj pwm los ntawm cov thermal conductivity ntawm 7,7 Wm-1 K-1 thiab 6 Wm-1 K-1 raws lub a-axis thiab c-axis, feem. Kuj tseem muaj kev ua haujlwm siab Yb 3+ → Er 3+ lub zog hloov pauv (~ 94%) thiab tsis muaj zog upconversion poob vim tias lub neej luv luv (~ 80 ns) ntawm 4 I 11/2 zoo siab lub xeev vim tus tswv tsev Qhov siab tshaj plaws phonon zog yog siab (vmax ~ 1500 cm-1). Lub zog nqus thiab dav dav (txog 17 nm) tau pom ntawm 976 nm, zoo ib yam nrog cov emission spectrum ntawm InGaAs laser diode.