Search Results - "Kanazawa, Shigeru"

Directly modulated membrane lasers with 108 GHz bandwidth on a high-thermal-conductivity silicon carbide substrate by Yamaoka, Suguru, Diamantopoulos, Nikolaos-Panteleimon, Nishi, Hidetaka, Nakao, Ryo, Fujii, Takuro, Takeda, Koji, Hiraki, Tatsurou, Tsurugaya, Takuma, Kanazawa, Shigeru, Tanobe, Hiromasa, Kakitsuka, Takaaki, Tsuchizawa, Tai, Koyama, Fumio, Matsuo, Shinji

“…Increasing the modulation speed of semiconductor lasers has attracted much attention from the viewpoint of both physics and the applications of lasers. Here we…”
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Uncooled 100-GBaud Directly Modulated Membrane Lasers on SiC Substrate by Yamaoka, Suguru, Diamantopoulos, Nikolaos-Panteleimon, Nishi, Hidetaka, Fujii, Takuro, Takeda, Koji, Hiraki, Tatsurou, Kanazawa, Shigeru, Kakitsuka, Takaaki, Matsuo, Shinji

“…We investigate the temperature dependence of the dynamic characteristics of a 1.3-μm InGaAlAs-based directly modulated membrane laser on a SiC substrate. The…”
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High Power and High Speed SOA Assisted Extended Reach EADFB Laser (AXEL) for 53-Gbaud PAM4 Fiber-Amplifier-Less 60-km Optical Link by Shindo, Takahiko, Fujiwara, Naoki, Kanazawa, Shigeru, Nada, Masahiro, Nakanishi, Yasuhiko, Yoshimatsu, Toshihide, Kanda, Atsushi, Chen, Mingchen, Ohiso, Yoshitaka, Sano, Kimikazu, Matsuzaki, Hideaki

“…In our article to extend a 100 Gbit/s/λ fiber-amplifier-less optical link with a simple and cost-effective transmission system, we have fabricated an O-band…”
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30-km Error-Free Transmission of Directly Modulated DFB Laser Array Transmitter Optical Sub-Assembly for 100-Gb Application by Kanazawa, Shigeru, Kobayashi, Wataru, Ueda, Yuta, Fujisawa, Takeshi, Takahata, Kiyoto, Ohno, Tetsuichiro, Yoshimatsu, Toshihide, Ishii, Hiroyuki, Sanjoh, Hiroaki

“…We fabricated the first compact 100-gigabit Ethernet (100GbE) transmitter optical sub-assembly (TOSA) using a directly modulated DFB laser (DML) array…”
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51-nm Uniform-Intensity Tuning of Superstructure Grating Active-DBR Laser for 2-μm Wavelength Band by Shindo, Takahiko, Ueda, Yuta, Shimokozono, Makoto, Sato, Tomonari, Kobayashi, Wataru, Kanazawa, Shigeru, Chen, Mingchen, Matsuzaki, Hideaki

“…To suppress the fluctuation of light intensity during wavelength tuning caused by carrier induced optical loss, we utilized a single quantum well (SQW)…”
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High-Speed (400 Gb/s) Eight-Channel EADFB Laser Array Module Using Flip-Chip Interconnection Technique by Kanazawa, Shigeru, Fujisawa, Takeshi, Ishii, Hiroyuki, Takahata, Kiyoto, Ueda, Yuta, Iga, Ryuzo, Sanjoh, Hiroaki

“…We fabricated a 400-G flip-chip interconnection eight-channel EADFB laser array module. The flip-chip interconnection technique provides a higher modulation…”
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Ultra-high-speed optical transmission using digital-preprocessed analog-multiplexed DAC by Yamazaki, Hiroshi, Nagatani, Munehiko, Hamaoka, Fukutaro, Horikoshi, Kengo, Nakamura, Masanori, Matsushita, Asuka, Kanazawa, Shigeru, Hashimoto, Toshikazu, Nosaka, Hideyuki, Miyamoto, Yutaka

“…In advanced fiber transmission systems with digital signal processors (DSPs), analog bandwidths of digital-to-analog converters (DACs), which interface the…”
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Ultra-Compact 100 GbE Transmitter Optical Sub-Assembly for 40-km SMF Transmission by Kanazawa, S., Fujisawa, T., Nunoya, N., Ohki, A., Takahata, K., Sanjoh, H., Iga, R., Ishii, H.

“…The first ultra-compact transmitter optical sub-assembly (TOSA) has been developed for the metro-area 100 Gbit/s Ethernet (100 GbE) system. Four DFB lasers…”
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Planar n-SI-n heterostructure athermal InP (110) optical modulator by Ogiso, Yoshihiro, Nakanishi, Yasuhiko, Kanazawa, Shigeru, Yamada, Eiichi, Tanobe, Hiromasa, Arai, Masakazu, Shibata, Yasuo, Kohtoku, Masaki

“…We report an athermal InP (110) optical modulator with a simple planar n-SI-n heterostructure. A symmetrical push-pull operation provides a high-extinction…”
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Influence of Sb surfactant on carrier concentration in heavily Zn-doped InGaAs grown by metalorganic vapor phase epitaxy by Sato, Tomonari, Mitsuhara, Manabu, Iga, Ryuzo, Kanazawa, Shigeru, Inoue, Yasuyuki

“…We investigated the influence of antimony (Sb) as a surfactant on the carrier and zinc (Zn) concentrations in a Zn-doped InGaAs layer grown by metalorganic…”
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Low-Loss Cascaded Mach-Zehnder Multiplexer Integrated 25\hbox/\times 4\hbox EADFB Laser Array for Future CFP4 100 GbE Transmitter by Fujisawa, Takeshi, Kanazawa, Shigeru, Ueda, Yuta, Kobayashi, Wataru, Takahata, Kiyoto, Ohki, Akira, Ito, Toshio, Kohtoku, Masaki, Ishii, Hiroyuki

“…A 4 × 25-Gb/s electroabsorption modulator integrated with a distributed feedback (DFB) laser (EADFB laser) array monolithically integrated with a low-loss…”
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Over 67 GHz Bandwidth and 1.5 V Vπ InP-Based Optical IQ Modulator With n-i-p-n Heterostructure by Ogiso, Yoshihiro, Ozaki, Josuke, Ueda, Yuta, Kashio, Norihide, Kikuchi, Nobuhiro, Yamada, Eiichi, Tanobe, Hiromasa, Kanazawa, Shigeru, Yamazaki, Hiroshi, Ohiso, Yoshitaka, Fujii, Takuro, Kohtoku, Masaki

“…We report novel high-bandwidth InP-based Mach-Zehnder modulator and in-phase/quadrature (IQ) modulators that we realized by combining an n-i-p-n…”
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Digital-Preprocessed Analog-Multiplexed DAC for Ultrawideband Multilevel Transmitter by Yamazaki, Hiroshi, Nagatani, Munehiko, Kanazawa, Shigeru, Nosaka, Hideyuki, Hashimoto, Toshikazu, Sano, Akihide, Miyamoto, Yutaka

“…High-speed digital-to-analog converters (DACs) are essential in advanced optical transmission systems, utilizing multilevel modulation formats and…”
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214-Gb/s 4-PAM Operation of Flip-Chip Interconnection EADFB Laser Module by Kanazawa, Shigeru, Yamazaki, Hiroshi, Nakanishi, Yasuhiko, Ueda, Yuta, Kobayashi, Wataru, Muramoto, Yoshifumi, Ishii, Hiroyuki, Sanjoh, Hiroaki

“…We fabricated a Hi-FIT LE-EADFB laser module. Hi-FIT, which is a wire-free interconnection technique, provides a higher modulation bandwidth and a flatter…”
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Electro-optically tunable laser with ultra-low tuning power dissipation and nanosecond-order wavelength switching for coherent networks by Ueda, Yuta, Shindo, Takahiko, Kanazawa, Shigeru, Fujiwara, Naoki, Ishikawa, Mitsuteru

“…The huge amount of data traffic behind the rapid growth of cloud computing is putting pressure on the operation of mobile fronthauls and data center networks…”
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High-Capacity IM-DD Transmission in O-Band Using Advanced Maximum Likelihood Sequence Estimation Methods by Taniguchi, Hiroki, Yamamoto, Shuto, Nakamura, Masanori, Masuda, Akira, Kisaka, Yoshiaki, Kanazawa, Shigeru, Nakamura, Hirotaka

“…We propose advanced maximum likelihood sequence estimation (MLSE) methods for increasing the capacity of short-reach intensity-modulated direct detection…”
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Hitless Wavelength Switching of Semiconductor Optical Amplifier-integrated Reflection-type Transversal Filter Laser with Suppressed Frequency Error by Ueda, Yuta, Saito, Yusuke, Shindo, Takahiko, Kanazawa, Shigeru, Kobayashi, Wataru, Matsuzaki, Hideaki, Ishikawa, Mitsuteru

“…A spurious wavelength (λ spurious ) from a tunable laser during tuning is an issue in optical systems based on dynamically controlled laser wavelengths. Output…”
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224-Gbit/s 4-PAM operation of compact DC block circuit integrated Hi-FIT AXEL transmitter with low power consumption by Kanazawa, Shigeru, Shindo, Takahiko, Chen, Mingchen, Nakanishi, Yasuhiko, Kosuga, Shohei, Nakamura, Hirotaka

“…We previously developed a semiconductor optical amplifier (SOA) assisted extended reach electroabsorption modulator integrated distributed feedback (EADFB)…”
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4 ch × 30-Gbps/ch Optical Transmission Performance of a Low-Power Transmitter Flip-Chip-Bonded 1.3-μM LD Array-on-Si by Kishi, Toshiki, Nagatani, Munehiko, Kanazawa, Shigeru, Shikama, Kota, Fujii, Takuro, Nishi, Hidetaka, Minotani, Tadashi, Sato, Norio, Segawa, Toru, Matsuo, Shinji

“…This paper presents a four-channel (4-ch) transmitter consisting of a 4-ch 65-nm CMOS cascode shunt laser diode (LD) driver and flip-chip-bonded 1.3-μm…”
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Burst-Tolerant Tuning of Reflection-Type Transversal Filter Laser With Single Active Region by Saito, Yusuke, Ueda, Yuta, Shindo, Takahiko, Kanazawa, Shigeru, Matsuzaki, Hideaki, Ishikawa, Mitsuteru

“…We developed a tunable laser based on a reflection-type transversal filter (RTF). The RTF laser is tuned by the electro-optic effect and exhibits low-power,…”
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