Ultrahigh bit-rate all-optical multibit correlator based on quantum dot semiconductor optical amplifiers

作者：Zhang Limei^*; Wang Zhi; Liu Lanlan

来源：Optical Engineering, 2013, 52(11): 116104.

DOI：10.1117/1.OE.52.11.116104

• all-optical signal processing
• all-optical multibit correlator
• quantum dot semiconductor optical amplifier

An all-optical multibit correlator using the multistage cascaded quantum dots semiconductor optical amplifiers Mach-Zehnder interferometer (QD-SOA MZI) is presented with the example of an 8-bits correlator. The simulations demonstrate the correlator pulse with ultrahigh quality at the bit rate of 500 Gbps. For the ultrahigh bit-rate applications, the ultrafast dynamics of the QD-SOA are investigated with the pulse/spectra distortion, gain dynamics, phase dynamics, and the frequency chirp of the optical pulse. All-optical logical gates XOR and AND based on the QD-SOA MZI are simulated with the consideration of many nonlinear dynamics, such as the carrier injection, carrier depletion, carrier density fluctuation, carrier heating, and the spectra hole-burning in the rate equations scheme.

• 出版日期2013-11
• 单位北京交通大学