NIR EMISSION SPECTRA OF (Er: Yb) DOPED SiO2-TiO2-Al2O3 SOL-GEL GLASSES
نویسنده
چکیده
The present paper reports the near infrared (NIR) emission spectra of Er: Yb co-doped SiO2-Al2O3-TiO2 sol-gel glasses. Upon optical pumping either with 980nm(Diode Laser) or 488nm (Ar ion laser), the NIR emission transition (I13/2→I15/2) at 1550nm of (Er:Yb) glasses have revealed an improved intensity by many times compared with the Er singly doped sol-gel glass. The dependence of the emission intensity and lifetimes on the Yb/Er values and also the Er concentration change has been investigated.
منابع مشابه
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