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Optical character of Er3+/Yb3+ co-doped P2O5–CaO–Na2O–Al2O3–AgO phosphate glass

✍ Scribed by Chengguo Ming; Feng Song; Yin Yu; Gong Zhang; Qingru Wang; Hua Yu; Tongqing Sun; Jianguo Tian

Publisher
Elsevier Science
Year
2011
Tongue
English
Weight
490 KB
Volume
284
Category
Article
ISSN
0030-4018

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✦ Synopsis

The up-conversion (UC) and near infrared (NIR) luminescence of Er 3+ /Yb 3+ co-doped phosphate glass are investigated. In the UC emission range, the 523 nm, 546 nm green emissions and the 659 nm red emission are observed. With the increasing pump power, the intensity ratios of I 523 /I 659 , I 546 /I 659 and I 523 /I 546 increase gradually. The phenomenon is reasonably interpreted by theoretical analysis based on steady state rate equations. The emission cross section of the infrared emission at 1546 nm is larger (about 6.7 × 10 -21 cm 2 ), which is suitable for making fiber amplifier.

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