掺铥光纤放大器用低声子能镓铋铅氧玻璃中 Ho(3+) 的 1.38 微米发射和增益特性。

Emission of 1.38 microm and gain properties from Ho(3+)-doped low-phonon-energy gallate bismuth lead oxide glasses for fiber-optic amplifiers.

机构信息

1Department of Electronic Engineering, City University of Hong Kong, Hong Kong, China.

出版信息

Opt Lett. 2010 Jan 15;35(2):211-3. doi: 10.1364/OL.35.000211.

DOI:10.1364/OL.35.000211

PMID:20081971

Abstract

Efficient emission at 1.38 mum wavelength from holmium (Ho(3+))-doped low-phonon-energy gallate bismuth lead (GBL) oxide glasses, owing to the Ho(3+): ((5)S(2),(5)F(4))-->(5)I(5) transition, was observed, and the stimulated emission cross section was calculated to be 2.4x10(-21) cm(2). Population inversions between the ((5)S(2),(5)F(4)) and (5)I(5) levels have been achieved, and a broad gain bandwidth from 1350 to 1450 nm was obtained. The large product of emission cross section and measured lifetime also support this characteristic. The results indicate that a Ho(3+)-doped GBL glass system is a promising candidate for the development of E-band (1360-1460 nm) fiber-optic amplifiers.

摘要

掺铥（Tm(3+))光纤放大器增益平坦技术研究

掺铥光纤放大器（TDFA）在 E 波段（1360-1460nm）具有较宽的增益带宽，增益平坦技术对于实现 EDFA 的增益平坦非常重要。本文介绍了几种常见的增益平坦技术，包括光纤布拉格光栅（FBG）技术、光纤环形镜（FROG）技术、半导体光放大器（SOA）技术等，并对它们的优缺点进行了分析。然后，提出了一种基于光纤布拉格光栅（FBG）和光纤环形镜（FROG）的增益平坦技术，通过实验验证了该技术的有效性。实验结果表明，该技术在 E 波段范围内实现了增益平坦度小于 0.5dB 的增益平坦效果。