Measurement of the Internal Loss Coefficient of Semiconductor Optical Amplifiers

被引：2

作者：

Liu Guo-Dong

Wu Chong-Qing ^{[1
]}

Wang Fu

Mao Ya-Ya

机构：

[1] Beijing Jiaotong Univ, Inst Opt Informat, Beijing 100044, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2013年 / 30卷 / 05期

基金：

中国国家自然科学基金;

关键词：

BUFFER;

D O I：

10.1088/0256-307X/30/5/058501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The internal optical loss in semiconductor optical amplifiers (SOAs) is investigated experimentally and theoretically over a wide injection current range. A new measurement method is proposed without noise figure spectra. Theoretically, considering the internal loss in an SOA, a modified formula of the input-output characteristics is deduced. Based on the practically measured input-output characteristic curves, the internal loss coefficient of an SOA is measured at different injection currents. The results demonstrate that the internal loss coefficient of SOAs decreases with increasing injection current.

引用

页数：4

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