Search Results - "TAKAGI, Kazuhisa"

All-Optical Clock Recovery and Wavelength Conversion by Combination of Self-Pulsation Laser and Semiconductor-Optical-Amplifier-Based Mach–Zehnder Interferometer by Nishikawa, Satoshi, Gotoda, Mitsunobu, Nishimura, Tetsuya, Miyahara, Toshiharu, Hatta, Tatsuo, Matsumoto, Keisuke, Takagi, Kazuhisa, Aoyagi, Toshitaka, Tokuda, Yasunori

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Selective-Area Growth for Novel 1.3 µm Distributed Feedback Laser Diodes with Graded Grating by Takiguchi, Tohru, Watanabe, Hitoshi, Shibata, Kimitaka, Takagi, Kazuhisa, Minami, Hiroyuki, Takemoto, Akira, Mihashi, Yutaka, Higuchi, Hideo

“…We demonstrate a new approach to realizing graded grating, which is effective for improving the modulation characteristics of distributed feedback (DFB) laser…”
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Tunable DFB Laser Array Integrated With Mach-Zehnder Modulators for 44.6 Gb/s DQPSK Transmitter by Sasahata, Y., Saito, T., Takiguchi, T., Takagi, K., Matsumoto, K., Nagira, T., Sakuma, H., Suzuki, D., Makita, R., Takabayashi, M., Gotoda, M., Ishimura, E.

“…A tunable distributed feedback (DFB) laser array integrated with Mach-Zehnder modulators (TLA-MZMs) for a 44.6 Gb/s differential quadrature phase shift keying…”
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Polarization-Insensitive Monolithic 40-Gbps SOA-MZI Wavelength Converter With Narrow Active Waveguides by Hatta, T., Miyahara, T., Miyazaki, Y., Takagi, K., Matsumoto, K., Aoyagi, T., Motoshima, K., Mishina, K., Maruta, A., Kitayama, K.

“…A polarization-insensitive monolithic 40-Gbps semiconductor optical amplifier (SOA)-Mach-Zehnder interferometer wavelength converter has been developed. Based…”
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Small-chirp 40-Gbps electroabsorption modulator with novel tensile-strained asymmetric quantum-well absorption layer by Miyazaki, Y., Tada, H., Shin-ya Tokizaki, Takagi, K., Aoyagi, T., Mitsui, Y.

“…A small-chirp 40-Gbps electroabsorption modulator (EAM) with a novel tensile-strained asymmetric quantum-well (QW) absorption layer has been demonstrated for…”
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Lasing Mechanism Analysis of Self-Pulsating Distributed Feedback Laser Diodes and Successful Demonstration of All-Optical Signal Recovery at 40 Gbps by Nishikawa, Satoshi, Gotoda, Mitsunobu, Nishimura, Tetsuya, Miyahara, Toshiharu, Hatta, Tatsuo, Miyazaki, Yasunori, Matsumoto, Keisuke, Takagi, Kazuhisa, Aoyagi, Toshitaka, Yoshiara, Kiichi, Tokuda, Yasunori

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Polarization-Insensitive SOA-MZI Monolithic All-Optical Wavelength Converter for Full C-band 40Gbps-NRZ Operation by Miyazaki, Yasunori, Miyahara, Toshiharu, Takagi, Kazuhisa, Matsumoto, Keisuke, Nishikawa, Satoshi, Hatta, Tatsuo, Aoyagi, Toshitaka, Motoshima, Kuniaki

“…Bulk InGaAsP SOA-MZI monolithic wavelength converter has been optimized for fast gain recovery and clear eye openings at 40Gbps-NRZ format. Full C-band…”
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1 dBm average optical output power operation of small-chirp 40-Gbps electroabsorption modulator with tensile-strained asymmetric quantum-well absorption layer by MIYAZAKI, Yasunori, TADA, Hitoshi, TOKIZAKI, Shin-Ya, TAKAGI, Kazuhisa, HANAMAKI, Yoshihiko, AOYAGI, Toshitaka, MITSUI, Yasuo

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40G RZ-DQPSK transmitter monolithically integrated with tunable DFB laser array and Mach-Zehnder modulators by Takiguchi, T, Saito, T, Matsumoto, K, Takagi, K, Morita, Y, Hatakenaka, S, Watatani, C, Akiyama, K, Gotoda, M, Ishimura, E, Aoyagi, T, Shima, A

“…A 40G RZ-DQPSK transmitter monolithically integrated with a tunable DFB laser array and Mach-Zehnder modulators was developed for the first time. The optical…”
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Lasing mode analysis of self-pulsating DFB laser diodes for all-optical signal recovery at 40 Gbps by Nishikawa, S., Gotoda, M., Nishimura, T., Miyahara, T., Hatta, T., Miyazaki, Y., Matsumoto, K., Takagi, K., Aoyagi, T., Yoshiara, K., Tokuda, Y.

“…Three-electrode-type self-pulsating (SP) distributed feedback (DFB) laser diodes (LDs) were fabricated. Lasing mode selectivity and pulsating frequency of…”
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