Optical Flip-Flop Operation in Orthogonal Polarization States with a Single Semiconductor Optical Amplifier and Two Feedback Loops
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- TAKASE Kenta
- The University of Tokushima
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- GOTO Nobuo
- The University of Tokushima
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- YANAGIYA Shin-ichiro
- The University of Tokushima
Abstract
An optical flip-flop circuit with a single semiconductor optical amplifier (SOA) using two orthogonal polarization states is proposed. The optical set / reset input and output signals are at a single wavelength. The flip-flop circuit consists of an SOA, a polarization combiner, a polarization splitter, two directional couplers, and two phase shifters. No continuous light source is required to operate the circuit. In this paper, we theoretically analyze the operation performance. Polarization dependence in SOA is considered in the analysis at a single wavelength operation, and numerically simulated results are presented. We confirm that the flip-flop circuit with a feedback-loop length of 15 mm can be operated at switching time of around 3 ns by 1 ns set / reset pulses. The flip-flop performance is discussed from viewpoints of transient overshoot and contrast at the steady on-off states.
Journal
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- IEICE Transactions on Electronics
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IEICE Transactions on Electronics E97.C (7), 767-772, 2014
The Institute of Electronics, Information and Communication Engineers
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Details 詳細情報について
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- CRID
- 1390001204378505856
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- NII Article ID
- 130004519139
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- ISSN
- 17451353
- 09168524
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- Text Lang
- en
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed