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Optical Engineering

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

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.

Paper Details

Date Published: 6 November 2013
PDF: 11 pages
Opt. Eng. 52(11) 116104 doi: 10.1117/1.OE.52.11.116104
Published in: Optical Engineering Volume 52, Issue 11
Show Author Affiliations
Limei Zhang, Beijing Jiaotong Univ. (China)
Zhi Wang, Beijing Jiaotong Univ. (China)
Lanlan Liu, Beijing Jiaotong Univ. (China)


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