Q Factor Characteristics of Wavelength Conversion Based on Quantum Dot Semiconductor Optical Amplifiers

LI Wen; WANG Hai-long; CUI Le-le; ZHANG Guo; GONG Qian

doi:10.3788/fgxb20163703.0346

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Q Factor Characteristics of Wavelength Conversion Based on Quantum Dot Semiconductor Optical Amplifiers

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- Q Factor Characteristics of Wavelength Conversion Based on Quantum Dot Semiconductor Optical Amplifiers
- Chinese Journal of Luminescence Vol. 37, Issue 3, Pages: 346-352(2016)
- 作者机构：
  
  1. 山东省激光偏光与信息技术重点实验室, 曲阜师范大学物理系, 山东曲阜,273165
  2. 中国科学院上海微系统与信息技术研究所信息功能材料国家重点实验室上海,200050
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20163703.0346
  CLC： TN929.11
- Received：28 October 2015，
  
  Revised：16 December 2015，
  
  Published：05 March 2016
- 稿件说明：
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李雯, 王海龙, 崔乐乐等. 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

LI Wen, WANG Hai-long, CUI Le-le etc. Q Factor Characteristics of Wavelength Conversion Based on Quantum Dot Semiconductor Optical Amplifiers[J]. Chinese Journal of Luminescence, 2016,37(3): 346-352
李雯, 王海龙, 崔乐乐等. 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 DOI： 10.3788/fgxb20163703.0346.

LI Wen, WANG Hai-long, CUI Le-le etc. Q Factor Characteristics of Wavelength Conversion Based on Quantum Dot Semiconductor Optical Amplifiers[J]. Chinese Journal of Luminescence, 2016,37(3): 346-352 DOI： 10.3788/fgxb20163703.0346.

摘要

为了改善全光波长转换器的转换性能进而提高输出信号质量

研究了波长转换器的

因子特性。采用牛顿迭代法和四阶龙格库塔法解光场传输方程和跃迁速率方程

分析了输入信号光功率、脉冲宽度、最大模式增益和有源区长度4个因素对全光波长转换器的

因子特性的影响

并将得到的结果与相同条件下的输出消光比比较。结果表明:增大输入信号光功率

因子先增大后减小

并且在-12 dBm时取得最大值8.819 dB;

因子随着脉冲宽度的增加而不断下降;增大最大模式增益和有源区长度

因子增大。在实现波长转换的基础上

优化各参数数值

得到的

因子达到16.680 dB

输出信号质量较好。要同时获得高的消光比和

因子

提高输出信号的质量

必须选取适当的输入信号光功率、脉冲宽度、最大模式增益和有源区长度。

Abstract

In order to optimize the conversion performance of all-optical wavelength converter and improve the quality of output signal

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

factor of the all-optical wavelength converter were also studied

and they were compared with the output extinction ratio under the same conditions. With the increasing of the input signal power

factor increases up to the maxima 8.819 dB which appears at -12 dBm of the input signal power

and then begin to decrease.

factor decreases with the increasing 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 optimizing the best parameter value

the value of

factor reaching 16.680 dB is obtained

and the output signal quality is high. In order to obtain the high extinction ratio and

factor at the same time to improve the quality of the output converted optical signal

the appropriate input signal must be selected for the optical power

pulse width

maximum mode gain

and length of the active layer.

关键词

Keywords

references

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