Static and dynamic characteristics analysis of all-optical wavelength conversion using directionally coupled semiconductor optical amplifiers
Static and dynamic characteristics analysis of all-optical wavelength conversion using directionally coupled semiconductor optical amplifiers
复制标题
定向耦合半导体光放大器全光波长转换的静态和动态特性分析
DOI：
10.1109/3.853560
复制
发表时间：
2000
影响因子：
2.5
通讯作者：
Y. Nakano
中科院分区：
文献类型：
--
作者：
Masumi Saitoh;B. Ma;Y. Nakano
我们分析了定向耦合半导体光放大器 (DCSOA) 的波长转换操作的静态和动态特性。开发了基于改进的瞬态传递矩阵方法的完整动态 DCSOA 模型。该模型准确地考虑了载流子和光子密度、增益、折射率、耦合系数和横向光场的纵向变化。研究了基于 DCSOA 的波长转换器的消光比、调制带宽和频率啁啾。对于大多数特性，DCSOA 方案比交叉增益调制具有优势。此外，通过优化 DCSOA 的注入电流，可以获得更好的性能。
We analyze the wavelength-converting operation of directionally coupled semiconductor optical amplifiers (DCSOA's) with respect to their static and dynamic characteristics. A complete dynamic DCSOA model based on the modified time-dependent transfer-matrix method is developed. This model accurately considers longitudinal variations of carrier and photon densities, gain, refractive index, coupling coefficients, and lateral optical fields. The extinction ratio, modulation bandwidth, and frequency chirping of DCSOA-based wavelength converters are investigated. For most characteristics, the DCSOA scheme has advantages over cross-gain modulation. Furthermore, by optimizing the injection current into the DCSOA, even better performance can be attained.