发光学报2016，Vol.37Issue(3)：346-352,7.DOI:10.3788/fgxb20163703.0346
量子点半导体光放大器波长转换的Q因子特性
Q Factor Characteristics of Wavelength Conversion Based on Quantum Dot Semiconductor Optical Amplifiers
摘要
Abstract
In order to optimize the conversion performance of all-optical wavelength converter and improve the quality of output signal, Q factor of wavelength converter was studied. Newton iteration method and four order Runge Kutta method were used to solve the transition rate equation and light propagation equations. The effects of the input signal power, optical pulse width, maximum mode gain , and length of the active layer on Q factor of the all-optical wavelength converter were also stud-ied, and they were compared with the output extinction ratio under the same conditions. With the increasing of the input signal power, Q factor increases up to the maxima 8. 819 dB which appears at-12 dBm of the input signal power, and then begin to decrease. Q factor decreases with the in-creasing of the optical pulse width, and increases with the increasing of the maximum mode gain and the length of the active layer. On the basis of the realization of the wavelength conversion, by opti-mizing the best parameter value, the value of Q factor reaching 16. 680 dB is obtained, and the out-put signal quality is high. In order to obtain the high extinction ratio and Q factor at the same time to improve the quality of the output converted optical signal, the appropriate input signal must be se-lected for the optical power, pulse width, maximum mode gain, and length of the active layer.关键词
量子点半导体光放大器/全光波长转换/交叉相位调制/Q因子Key words
quantum-dot semiconductor optical amplifier/all-optical wavelength converter/cross phase modulation/Q factor分类
信息技术与安全科学引用本文复制引用
李雯,王海龙,崔乐乐,张国,龚谦..量子点半导体光放大器波长转换的Q因子特性[J].发光学报,2016,37(3):346-352,7.基金项目
山东省自然科学基金 （）
信息功能材料国家重点实验开放课题（SKL201307）资助项目 （）
