Investigation of Er3+-Doped Phosphate Glass for L+ Band Optical Amplification

IEEE Photonics Journal

Sheng Chen¹  Wei Wei¹  Xiao Shen¹  Xin Wang²  Lili Hu²  Yan Sun² 

[1]College of Electronic and Optical Engineering & College of Microelectronics, Nanjing University of Posts and Telecommunications, Nanjing, China

[2]Shanghai Institute of Optics and Fine Mechanics, Key Laboratory of Materials for High Power Laser, Chinese Academy of Sciences, Shanghai, China

关键词: Optical amplifier;    Er3+-doped phosphate glass;    L+ band;    Raman spectrum;   

DOI  :  10.1109/JPHOT.2021.3124132

来源: DOAJ

【 摘 要 】

In this work, Er³⁺-doped phosphate glass with good flatness of the emission spectrum of the L+ band was prepared by optimizing the content of BaO. The absorption and emission spectra were measured. Increase of BaO content is conducive to the broadening of the emission spectrum in the L+ band. The dependence of flatness with Raman intensity has been shown by linear fitting. The results show that B31 sample has best flatness of the emission spectrum in the L+ band. It is showed that the largest emission cross-section at 1630 nm is 0.0529 × 10^-20 cm² and higher than other Er³⁺-doped phosphate glass. Decay curves of the ⁴I_13/2 level were measured and the longest fluorescent lifetime is 10.18 ms and longer than other glass except germinate glass. The broadening of the Er³⁺-doped phosphate glass spectrum of the L+ band has been achieved successfully, which provides a reference for the material of optical amplifiers.

【 授权许可】

Unknown