Summary
the 2014 International Symposium on Nonlinear Theory and its Applications
2014
Session Number:B2L-A
Session:
Number:B2L-A4
Multiple Connected Optical Hard Limiter and Optical Power Equalizer Using Quantum-Dot Semiconductor
Keiichi Iwamoto, Fumiya Sato, Yuma Furuya, Takanori Irie, Gou Hosoya, Hiroyuki Yashima,
pp.304-307
Publication Date:2014/9/14
Online ISSN:2188-5079
Summary:
We propose an optical hard limiter (OHL) and optical power equalizer (OPE) consisting of multiple serially connected OHLs and OPEs. OHL and OPE use quantum-dot semiconductor optical amplifiers (QD-SOAs) based on the nonlinear effect of a self-phase modulation (SPM). By using QD-SOAs to adjust the phase between both arms of a Mach-Zehnder interferometer (MZI), performance of OHL and OPE can be implemented. We numerically analyze the proposed OHL and OPE models, and show that, with respect to previous implementations, the operating range is expanded and the input-output characteristics are improved.