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All-optical logic or gate using two cascaded semiconductor optical amplifiers

✍ Scribed by Ali Hamié; Ammar Sharaiha; Mikael Guégan; Jean Le Bihan; Adnan Hamzé

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
167 KB
Volume
49
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

A novel all‐optical logic OR gate based on cross‐gain modulation (XGM) using a two‐cascaded semiconductor optical amplifiers (SOAs) in a counterpropagating topology is presented. The attractive issue of the proposed method is that the logic OR gate can be obtained at a probe wavelength by taking advantage of the positive gain variation of one of the two used SOAs in the counterpropagating configuration. This reported feasibility study shows the all‐optical logic OR gate can be easily achieved with an extinction ratio higher than 7 dB.© 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 1568–1570, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22560

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Demonstration of all-optical logic OR ga
Demonstration of all-optical logic OR gate using semiconductor optical amplifier-delayed interferometer
✍ H. Dong; Q. Wang; G. Zhu; J. Jaques; A.B. Piccirilli; N.K. Dutta 📂 Article 📅 2004 🏛 Elsevier Science 🌐 English ⚖ 347 KB

All-optical OR operation has been demonstrated using a semiconductor optical amplifier (SOA) and delayed interferometer (DI) at 20 and 40 Gb/s. The DI is based on a polarization maintaining loop mirror. Q-factor of the operation is discussed through the numerical simulations. The results show the OR