摘要
在全光网和全光信号处理中,半导体光放大器(SOA)因其优良的非线性特性和快速响应特性而得到了广泛应用。增益恢复时间是表征SOA响应速度的关键参数。研究了增益恢复时间与SOA工作参数的关系,理论上得到动态增益特性、增益恢复时间与各参数之间的关系,并参考实际参数,进行了数值模拟。模拟结果表明,增加腔长、减小横截面积、增大注入电流、增大CW辅助光功率、增大探测光功率,均可提高SOA的响应速度。
The semiconductor optical amplifiers （SOAs） are employed in all optical networking and all optical signal processing due to the excellent nonlinearity and high speed. The gain recovery time is the key parameter to describe the response speed of the SOA. The relationship between the gain dynamics and a few operation parameters is obtained in this article. A few simple formula and some simulations are demonstrated, from which a few methods to improve the response speed of the SOA can be concluded as following, lengthening the active area, lessening the cross area, increasing the injection current, increasing the probe power, and operating with a CW holding beam.
出处
《光学与光电技术》
2008年第3期4-7,共4页
Optics & Optoelectronic Technology
基金
国家863计划(2007AA01Z270)
国家自然科学基金(60402006
60577020)资助项目
关键词
半导体光放大器
动态增益
增益恢复时间
全光信号处理
semiconductor optical amplifier
gain dynamics
gain recovery time
all optical signal processing
