A Proposal and Analytical Investigation of an All-Optical T-type Flip-Flop Using Semiconductor Optical Amplifier Mach–Zehnder Interferometer Configuration for Differential Phase-Shift Keying Encoding Operation

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概要

• 論文の詳細を見る

• An all-optical differential phase-shift keying (DPSK) regenerator with a DPSK demodulator and a conventional on–off keying (OOK) regenerator requires a DPSK encoding process that is realized by T-type flip-flop (T-FF) operation. To solve this problem, we propose an all-optical T-FF circuit consisting of counter-faced semiconductor optical amplifier (SOA)-based exclusive OR (XOR) gates for the first time. Numerical investigation with rate equation reveals the possibility of its stable operation in 10 Gbps with $2^{7}-1$ pseudorandom binary sequence (PRBS) signal. It also reveals that it is necessary to decrease the equivalent turn-off time for high bit-rate operation using push–pull configuration.

• 2010-06-25

著者

• Uenohara Hiroyuki

  Microsystem Research Center P & I Laboratory Tokyo Institute Of Technology

• Satoshi Shimizu

  Microsystem Research Center, Precision and Intelligence Labratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan

• Shimizu Satoshi

  Microsystem Research Center, Precision and Intelligence Laboratory, Tokyo Institute of Technology, Yokohama 226-8503, Japan

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• A Proposal and Analytical Investigation of an All-Optical T-type Flip-Flop Using Semiconductor Optical Amplifier Mach–Zehnder Interferometer Configuration for Differential Phase-Shift Keying Encoding Operation
• A Proposal of a Novel Gain Profile Model of Multi-Quantum-Well Semiconductor Optical Amplifiers
• Novel Optical Signal Regeneration System Using Cascaded Wavelength Converter Based on Cross-Gain Modulation in Semiconductor Optical Amplifiers
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• Modulation Format Dependence of Wavelength Conversion Performance Using Cross Gain Modulation in a Semiconductor Optical Amplifier
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