Acta Optica Sinica, Volume. 42, Issue 2, 0206001(2022)
Wavelength Conversion Characteristics of Quantum-Dot Semiconductor Optical Amplifier Based on Photonic Crystal
A quantum-dot semiconductor optical amplifier (QD-SOA) has the characteristics of picosecond gain recovery time and ultrafast carrier concentration recovery. The combination of photonic crystal (PC) and QD-SOA has the advantages of strong nonlinear effect, less absorption loss, high power transmission, and low power consumption. The wavelength conversion characteristics of photonic crystal-quantum dot semiconductor optical amplifiers (PC-QDSOAs) are studied, the influences of maximum mode gain, pumping power, detecting power, and active region length on the Q-factor of PC-QDSOA wavelength conversion are analyzed, and the relationships among the injection current, pumping power, detecting power, active region length, and extinction ratio of PC-QDSOA wavelength conversion are analyzed in detail. The simulation results of QD-SOA and PC-QDSOA are compared. The results show that the values of Q-factor and extinction ratio of PC-QDSOA are greater that that of QD-SOA, which indicates that the output signal quality, signal transmission efficiency, and conversion performance of PC-QDSOA are better than that of QD-SOA. The research results have guiding significance for the application of PC-QDSOA.
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Xiaobo Li, Hailong Wang, Linan Ma, Qian Gong. Wavelength Conversion Characteristics of Quantum-Dot Semiconductor Optical Amplifier Based on Photonic Crystal[J]. Acta Optica Sinica, 2022, 42(2): 0206001
Category: Fiber Optics and Optical Communications
Received: May. 11, 2021
Accepted: Aug. 9, 2021
Published Online: Dec. 29, 2021
The Author Email: Wang Hailong (hlwang@qfnu.edu.cn)