Search Results - "Tsunashima, Satoshi"

Receiver Integration with Arrayed Waveguide Gratings toward Multi-Wavelength Data-Centric Communications and Computing by Doi, Yoshiyuki, Yoshimatsu, Toshihide, Nakanishi, Yasuhiko, Tsunashima, Satoshi, Nada, Masahiro, Kamei, Shin, Sano, Kimikazu, Ishii, Yuzo

“…This paper reviews receivers that feature low-loss multimode-output arrayed waveguide gratings (MM-AWGs) for wavelength division multiplexing (WDM) as well as…”
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Equalizer-Free Transmission of 100-Gb/s 4-PAM Signal Generated by Flip-Chip Interconnection EADFB Laser Module by Kanazawa, Shigeru, Nakanishi, Yasuhiko, Tsunashima, Satoshi, Yamazaki, Hiroshi, Ueda, Yuta, Kobayashi, Wataru, Muramoto, Yoshifumi, Ishii, Hiroyuki, Sanjoh, Hiroaki

“…We fabricated a flip-chip interconnection lumped-electrode EADFB laser module and an optical receiver that includes a broadband electrical amplifier. Both have…”
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Silica-based, compact and variable-optical-attenuator integrated coherent receiver with stable optoelectronic coupling system by Tsunashima, Satoshi, Nakajima, Fumito, Nasu, Yusuke, Kasahara, Ryoichi, Nakanishi, Yasuhiko, Saida, Takashi, Yamada, Takashi, Sano, Kimikazu, Hashimoto, Toshikazu, Fukuyama, Hiroyuki, Nosaka, Hideaki, Murata, Koichi

“…We demonstrate a compact and variable-optical-attenuator (VOA) integrated coherent receiver with a silica-based planar lightwave circuit (PLC). To realize the…”
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Influence of Hole Accumulation on Source Resistance, Kink Effect and On-State Breakdown of InP-Based High Electron Mobility Transistors: Light Irradiation Study by Suemitsu, Tetsuya, Fushimi, Hiroshi, Kodama, Satoshi, Tsunashima, Satoshi, Kimura, Shunji

“…The influence of impact-ionized holes accumulating in the device was studied for InP-based InAlAs/InGaAs HEMTs using light irradiation experiments. Two…”
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Silica-based PLC with heterogeneously-integrated PDs for one-chip DP-QPSK receiver by Kurata, Yu, Nasu, Yusuke, Tamura, Munehisa, Kasahara, Ryoichi, Aozasa, Shinichi, Mizuno, Takayuki, Yokoyama, Haruki, Tsunashima, Satoshi, Muramoto, Yoshifumi

“…To realize a DP-QPSK receiver PLC, we heterogeneously integrated eight high-speed PDs on a silica-based PLC platform with a PBS, 90-degree optical hybrids and…”
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100-Gbit/s PDM-QPSK coherent receiver with wide dynamic range and excellent common-mode rejection ratio by Murata, Koichi, Saida, Takashi, Sano, Kimikazu, Ogawa, Ikuo, Fukuyama, Hiroyuki, Kasahara, Ryoichi, Muramoto, Yoshifumi, Nosaka, Hideyuki, Tsunashima, Satoshi, Mizuno, Takayuki, Tanobe, Hiromasa, Hattori, Kuninori, Yoshimatsu, Toshihide, Kawakami, Hiroto, Yoshida, Eiji

“…We report the design and fabrication of a hybrid-integration-type coherent receiver. We optimize the receiver building blocks, and achieve a -25-dB common-mode…”
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All-in-One 112-Gb/s DP-QPSK Optical Receiver Front-End Module Using Hybrid Integration of Silica-Based Planar Lightwave Circuit and Photodiode Arrays by Ohyama, Takaharu, Ogawa, Ikuo, Tanobe, Hiromasa, Kasahara, Ryoichi, Tsunashima, Satoshi, Yoshimatsu, Toshihide, Fukuyama, Hiroyuki, Itoh, Toshihiro, Sakamaki, Yohei, Muramoto, Yoshifumi, Kawakami, Hiroto, Ishikawa, Mitsuteru, Mino, Shinji, Murata, Koichi

“…We propose a new hybrid integrated optical front-end module for a 100-Gb/s-class coherent receiver using silica-based planar lightwave circuit (PLC)…”
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Silica-based PLC with heterogeneously-integrated PDs for one-chip DP-QPSK receiver by Kurata, Yu, Nasu, Yusuke, Tamura, Munehisa, Kasahara, Ryoichi, Aozasa, Shinichi, Mizuno, Takayuki, Yokoyama, Haruki, Tsunashima, Satoshi, Muramoto, Yoshifumi

“…We fabricated a DP-QPSK receiver PLC by the heterogeneous integration of eight high-speed PDs on a compact silica-based PLC platform with a PBS, 90-degree…”
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Ultra-compact Multi-fiber Connector with Magnetic Physical Contact by Shikama, Kota, Sato, Norio, Nagase, Ryo, Doi, Yoshiyuki, Tanobe, Hiromasa, Tsunashima, Satoshi, Ishii, Yuzo

“…An ultra-compact multi-fiber connector features a novel magnetic attraction structure for high-density on-board connector. The fabricated connectors show…”
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Voltage-Controlled Phase Shifter in a Surface Mount Package for 40- and 100-Gb/s Optical Transceivers by Nosaka, H, Nagatani, M, Sano, K, Ito, T, Tsunashima, S, Murata, K

“…This paper presents an 18-to-32 GHz voltage-controlled phase shifter in a compact surface mount package for both 40- and 100-Gb/s optical transceivers. The InP…”
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100-Gbit/s PDM-QPSK coherent receiver with wide dynamic range and excellent common-mode rejection ratio by Murata, K., Saida, T., Sano, K., Ogawa, I., Fukuyama, H., Kasahara, R., Muramoto, Y., Nosaka, H., Tsunashima, S., Mizuno, T., Tanobe, H., Hattori, K., Yoshimatsu, T., Kawakami, H., Yoshida, E.

“…We report the design and fabrication of a hybrid-integration-type coherent receiver. We optimize the receiver building blocks, and achieve a -25-dB common-mode…”
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Flip-chip interconnection EA-DFB laser module for 100-Gbit/s/λ application by Kanazawa, Shigeru, Tsunashima, Satoshi, Nakanishi, Yasuhiko, Muramoto, Yoshifumi, Ueda, Yuta, Tanobe, Hiromasa, Sanjoh, Hiroaki, Yamazaki, Hiroshi, Kobayashi, Wataru, Ishii, Hiroyuki

“…We have developed a flip-chip interconnection technique to solve the problem of the degradation of the modulation bandwidth of an optical transmitter due to…”
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Equalizer-free 2-km SMF transmission of 106-Gbit/s 4-PAM signal using optical transmitter/receiver with 50 GHz bandwidth by Kanazawa, Shigeru, Tsunashima, Satoshi, Nakanishi, Yasuhiko, Muramoto, Yoshifumi, Yamazaki, Hiroshi, Ueda, Yuta, Kobayashi, Wataru, Ishii, Hiroyuki, Sanjoh, Hiroaki

“…Using a fabricated optical transmitter and receiver with a 50-GHz bandwidth, we obtained a bit-error rate of less than 2 × 10 -4 under error-free conditions…”
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InP-based optical system ICs operating at 40 Gbit/s and beyond by Sano, K., Murata, K., Fukuyama, H., Tsunashima, S., Ishii, K., Kurishima, K., Matsuzaki, H., Enoki, T., Tokumitsu, M., Sugahara, H., Muraguchi, M.

“…InP-based 40-Gbit/s optical system ICs are steadily progressing for the start-up of 40-Gbit/s optical systems. Also, InP-based ICs operating beyond 40 Gbit/s…”
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90 GHz operation of a novel dynamic frequency divider using InP/InGaAs HBTs by Tsunashima, S., Nakajima, H., Sano, E., Ida, M., Kurishima, K., Watanabe, N., Enoki, T., Sugahara, H.

“…We present 90 GHz operation of a 1/8 digital frequency divider IC fabricated with InP/InGaAs HBTs having a current gain cutoff frequency (f/sub /spl tau//) of…”
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A wideband low-distorted ROSA for video distribution service based on FM conversion scheme by Sano, K, Yoshimatsu, T, Kodama, S, Nakamura, M, Mutoh, M, Tsunashima, S, Yuki, N, Murata, K

“…A receiver optical sub-assembly (ROSA) has been developed for video distribution service based on FM conversion scheme. The ROSA features a wide bandwidth of…”
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A 150-GHz dynamic frequency divider using InP/InGaAs DHBTs by Tsunashima, S., Murata, K., Ida, M., Kurishima, K., Kosugi, T., Enoki, T., Sugahara, H.

“…An ultrahigh-speed frequency divider IC using InP/InGaAs DHBTs was developed. A clocked-inverter feed-forward toggle flip-flop is employed in the IC. The…”
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