論文 - 菅野 敦史
-
Pump-Linewidth-Tolerant Optical Data Exchange between 16QAM and QPSK with 50-GHz Channel-Spacing using Coherent DFB Pump 査読あり
Guo-Wei Lu, Andre Albuquerque, Benjamin J. Puttnam, Takahide Sakamoto, Miguel Drummond, Rogerio Nogueira, Atsushi Kanno, Satoshi Shinada, Naoya Wada, Tetsuya Kawanishi
2014 EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION (ECOC) 2014年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：IEEE
We propose and experimentally demonstrate optical data exchange scheme between 16QAM and QPSK with narrow spacing of 50GHz. The use of coherent pump makes it free of phase noise from pumps, and enables the use of low-cost DFB as pump source.
-
PERFORMANCE OF HIGH THROUGHPUT WLAN SIGNAL ON A SEAMLESS RADIO-OVER-FIBER AND 90-GHZ WIRELESS CONVERGENCE SYSTEM 査読あり
Pham Tien Dat, Atsushi Kanno, Tetsuya Kawanishi
2014 OPTOELECTRONICS AND COMMUNICATIONS CONFERENCE AND AUSTRALIAN CONFERENCE ON OPTICAL FIBRE TECHNOLOGY (OECC/ACOFT 2014) 1030 - 1032 2014年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：IEEE
A simple and reliable system based on analog radio-over-fiber and millimeter-wave-wireless is proposed for wireless signal transmission. High-throughput WLAN signals using high-order modulation and wide bandwidth is successfully transmitted and demodulated over the proposed system.
-
Performance of Burst-Mode LTE-A Signal on A Converged RoF and W-band Wireless System 査読あり
Pham Tien Dat, Atsushi Kanno, Tetsuya Kawanishi
2014 44TH EUROPEAN MICROWAVE CONFERENCE (EUMC) 909 - 912 2014年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：IEEE
We propose and experimentally investigate a high-speed burst-mode LTE-A signal transmission on a seamlessly converged RoF and millimeter-wave system at 90 GHz. Satisfactory transmission performance over the converged RoF and a 1.2-m 90-GHz wireless link is achieved. The obtained results confirm the potential to use the system in future high-speed mobile and broadband access networks.
-
Performance of a 90-GHz Radio-on-Radio-over-Fiber System Suitable for Communications in High-Speed Railways 査読あり
Pham Tien Dat, Atsushi Kanno, Tetsuya Kawanishi
2014 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM (IMS) 2014年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：IEEE
We propose a radio access network suitable for communications in high-speed railways employing a radio-on-radio- over-fiber and distributed antenna system. We present a proof-of-concept demonstration of wireless signal transmission over the system at 90 GHz. Standard LTE-A signals using QPSK, 16-QAM and 64-QAM modulation are successfully transmitted and demodulated. Satisfactory transmission performance with measured root-mean-square EVM well under the standard requirement is achieved. The obtained results indicate the potential to make use of the system in high-speed rail communications.
-
Performance Evaluation of Wavelength Division Multiplexed Radio-over-Fiber De-multiplexer in Frequency-Modulated Continuous-Wave Signal Delivery Systems 査読あり
Toshiaki Kuri, Atsushi Kanno, Tetsuya Kawanishi
2014 INTERNATIONAL TOPICAL MEETING ON MICROWAVE PHOTONICS (MWP) AND THE 2014 9TH ASIA-PACIFIC MICROWAVE PHOTONICS CONFERENCE (APMP) 218 - 221 2014年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：IEEE
A wavelength-division-multiplexed (WDM) radio-over-fiber (RoF) de-multiplexer, which is specially designed for frequency-modulated continuous-wave (FM-CW) signal delivery systems, is newly developed. The characteristics of the developed de-multiplexer are described and then the de-multiplexing performances of 4-channel WDM 32-GHz-band and 8-channel WDM 48-GHz-band FM-CW RoF signals are evaluated with the de-multiplexer.
-
Optical DFG-based 60 GHz signal generation by using a LiTaO3 rectangular waveguide 査読あり
Yusuke Takashima, Yuto Maejima, Hiroshi Murata, Yasuyuki Okamura, Atsushi Kanno, Tetsuya Kawanishi
IEICE ELECTRONICS EXPRESS 11 ( 12 ) 2014年
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
Millimeter-wave (MMW) signal generation devices using difference frequency generation (DFG) based on the second order nonlinear optical effect in a rectangular waveguide were studied in detail theoretically and experimentally. The temporal and spatial coupling process of a generated MMW signal to a TE10 mode in a rectangular waveguide embedded with a nonlinear crystal was analyzed using the finite-difference time-domain (FDTD) method. In the experiment, 60 GHz-band signals were successfully obtained from fabricated prototype devices using a rectangular waveguide embedded with z-cut LiTaO3 crystal.
-
Multilevel Signal Transmission at 600 GHz 査読あり
Atsushi Kanno, Pham Tien Dat, Isao Morohashi, Iwao Hosako, Tetsuya Kawanishi
2014 INTERNATIONAL TOPICAL MEETING ON MICROWAVE PHOTONICS (MWP) AND THE 2014 9TH ASIA-PACIFIC MICROWAVE PHOTONICS CONFERENCE (APMP) 362 - 365 2014年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：IEEE
Terahertz-wave signal transmission is demonstrated using quadrature amplitude modulation (QAM) by photonics. Small frequency fluctuations using a frequency-locked optical frequency comb are capable of generating a 80-MHz-bandwidth 16-ary-QAM signal with a data rate of 195 Mb/s.
-
Millimeter-wave Signal Generation Using Cascaded Optical Frequency Multiplication Technique 査読あり
Atsushi Kanno, Tetsuya Kawanishi
2014 44TH EUROPEAN MICROWAVE CONFERENCE (EUMC) 1028 - 1031 2014年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：IEEE
We propose a frequency-octupling technique for millimeter-wave and terahertz signal generation using cascaded optical frequency multipliers based on optical modulation. A millimeter-wave-capable optical frequency doubler connected to an optical frequency quadrupler provides a 100-200-GHz signal whose number of multiplications is eight. The observed phase-noise degradation is followed by theoretically expected degradation.
-
Millimeter-Wave Signal Generation Device Using Optical Difference Frequency Generation in LiTaO3 Crystal Suspended to Rectangular Waveguide 査読あり
Yusuke Takashima, Yuto Maejima, Hiroshi Murata, Yasuyuki Okamura, Atsushi Kanno, Tetsuya Kawanishi
2014 INTERNATIONAL TOPICAL MEETING ON MICROWAVE PHOTONICS (MWP) AND THE 2014 9TH ASIA-PACIFIC MICROWAVE PHOTONICS CONFERENCE (APMP) 153 - 156 2014年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：IEEE
A new millimeter-wave (MMW) signal generation device using a rectangular waveguide and second order nonlinear optical effect is proposed. Using a T-shaped rectangular waveguide with a suspended LiTaO3 crystal, adiabatic MMW signal injection into the waveguide is obtainable through optical difference frequency generation in the crystal. This device is easy for coupling to standard rectangular waveguide circuits compared with the proto-type devices where a nonlinear crystal is completely embedded into a rectangular waveguide. Analysis, design and preliminary experimental results are reported.
-
Low Frequency Analog Signal Distribution on Digital Photonic Networks by Optical Delta Sigma Modulation 査読あり
Atsushi Kanno, Tetsuya Kawanishi
BROADBAND ACCESS COMMUNICATION TECHNOLOGIES VIII 9007 2014年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：SPIE-INT SOC OPTICAL ENGINEERING
We propose a delta-sigma modulation scheme for low- and medium-frequency signal transmission in a digital photonic network system. A 10-Gb/s-class optical transceiver with a delta-sigma modulator utilized as a high-speed analog-to-digital converter (ADC) provides a binary optical signal. On the signal reception side, a low-cost and slow-speed photonic receiver directly converts the binary signal into an analog signal at frequencies from several hundreds of kilohertz several tens of megahertz. Further, by using a clock and data recovery circuit at the receiver to reduce jitters, the single-sideband phase noise of the generated signals can be significantly reduced.
DOI： 10.1117/12.2038114
-
Improvement of photodiode responsivity using the InAs quantum dot family for monolithic integration 査読あり
T. Umezawa, K. Akahane, A. Kanno, T. Kawanishi
2014 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) 2014年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：IEEE
We report a photodiode (PD) hybrid sub-system using a 1.5. m quantum dot (QD) semiconductor optical amplifier (SOA) and a QD-PD for a high-speed and high-sensitivity photoreceiver, and we characterize its responsivity.
-
High-Speed Photonic Device Technologies in Optical Fiber Connected Millimeter-wave Radar System for Foreign Object Debris Detection on Runways 査読あり
Naokatsu Yamamoto, Toshimasa Umezawa, Atsushi Kanno, Kouichi Akahane, Tetsuya Kawanishi
2014 XXXITH URSI GENERAL ASSEMBLY AND SCIENTIFIC SYMPOSIUM (URSI GASS) 2014年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：IEEE
Precise imaging of obstacles and foreign-object debris (FOD) is one of the most important security technologies for avoiding trouble in advance. Recently, we have focused on an optical fiber connected millimeter-wave radar system using a radio over fiver (RoF) technique for effectively detecting FOD over the large area of an airport runway. In this paper, we introduce high-speed photonic devices such as a W-band frequency modulated continuous-wave (FM-CW) signal generator, a highly-sensitive quantum dot (QD) photodetector, and a QD optical frequency comb laser (QD-CML) with harmonically optical pulsation. It is expected that these advanced photonic device technologies will become potential candidates for use in the RoF technique to realize the optical fiber connected millimeter-wave radar system.
-
High-Performance Analog Photoreceiver for Millimeter-Wave Radio-over-Fiber Applications 査読あり
T. Umezawa, K. Akahane, N. Yamamoto, A. Kanno, K. Jitsuno, N. Shibagaki, T. Kawanishi
2014 INTERNATIONAL TOPICAL MEETING ON MICROWAVE PHOTONICS (MWP) AND THE 2014 9TH ASIA-PACIFIC MICROWAVE PHOTONICS CONFERENCE (APMP) 109 - 112 2014年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：IEEE
We have developed a high-conversion-gain analog photoreceiver for millimeter-wave radio-over-fiber applications. The performance was tested with an optical back-to-back configuration at a symbol rate of 1.76-2.2 Gbaud in pi/2-shift BPSK and 16-QAM at a single carrier frequency of 32 GHz.
-
(IPC) multigigabit relay link using millimeter-Wave radio-over-Fiber technologies 査読あり
A. Kanno, T. Kawanishi, H. Ogawa, N. Shibagaki, H. Hanyu
IEEE Photonics Journal 5 ( 6 ) 2013年12月
記述言語：英語 掲載種別：研究論文（学術雑誌）
A multigigabit relay transceiver system based on analog radio-over-fiber technology is proposed and experimentally evaluated for broadband radio-signal transmission in the millimeter-wave band, particularly at 60 GHz. The combination of a high-speed optical modulator and a photodiode provides signal delivery over an optical fiber. The observed dynamic range and resultant error vector magnitude of a 16-ary quadrature amplitude modulation signal compliant with the IEEE 802.11ad Standard, designated for a wireless local access network at 60 GHz, can be within the limit set by the standard. © 2013 IEEE.
-
Stable Two-Mode Emission from Semiconductor Quantum Dot Laser 査読あり
Kouichi Akahane, Naokatsu Yamamoto, Atsushi Kanno, Keizo Inagaki, Toshimasa Umezawa, Tetsuya Kawanishi, Takashi Endo, Yasunori Tomomatsu, Toshio Yamanoi
APPLIED PHYSICS EXPRESS 6 ( 10 ) 2013年10月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：IOP PUBLISHING LTD
A two-wavelength emission laser (two-mode laser) has been fabricated using semiconductor quantum dots as the gain medium in the external cavity configuration. Two-mode laser emission with a separation of 98.8 GHz has been achieved by controlling the etalon and narrow-band filter setting. A 98.4 GHz beat signal was observed using the Michelson interferometer configuration, indicating that these emissions occurred simultaneously. (C) 2013 The Japan Society of Applied Physics
-
Stable Two-Mode Emission from Semiconductor Quantum Dot Laser 査読あり
Kouichi Akahane, Naokatsu Yamamoto, Atsushi Kanno, Keizo Inagaki, Toshimasa Umezawa, Tetsuya Kawanishi, Takashi Endo, Yasunori Tomomatsu, Toshio Yamanoi
APPLIED PHYSICS EXPRESS 6 ( 10 ) 2013年10月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：IOP PUBLISHING LTD
A two-wavelength emission laser (two-mode laser) has been fabricated using semiconductor quantum dots as the gain medium in the external cavity configuration. Two-mode laser emission with a separation of 98.8 GHz has been achieved by controlling the etalon and narrow-band filter setting. A 98.4 GHz beat signal was observed using the Michelson interferometer configuration, indicating that these emissions occurred simultaneously. (C) 2013 The Japan Society of Applied Physics
-
In-Service Method of Path Length Alignment in SDM Systems with Self-Homodyne Detection 査読あり
Ruben S. Luís, Benjamin J. Puttnam, José-Manuel Delgado Mendinueta, Jun Sakaguchi, Werner Klaus, Yoshinari Awaji, Naoya Wada, Atsushi Kanno, Tetsuya Kawanishi
18th OptoElectronics and Communications Conference (OECC) ThR3_3 2013年07月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
-
Energy Efficient Carrier Phase Recovery for Self-Homodyne Polarization- Multiplexed QPSK 査読あり
José-Manuel Delgado Mendinueta, Benjamin J, Puttnam, Jun Sakaguchi, Ruben S. Luís, Werner Klaus, Yoshinari Awaji, Naoya Wada, Atsushi Kanno, Tetsuya Kawanishi
18th OptoElectronics and Communications Conference (OECC) ThR3-5 2013年07月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
-
Transmission Penalties in a 19-Core Fiber System with Self-Homodyne Detection 査読あり
Benjamin J. Puttnam, José-Manuel Delgado Mendinueta, Jun Sakaguchi, Ruben S. Luís, Werner Klaus, Yoshinari Awaji, Naoya Wada, Atsushi Kanno, Tetsuya Kawanishi
18th OptoElectronics and Communications Conference (OECC) MR2-5 2013年07月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
-
105Tb/s Transmission System Using Low-cost, MHz Linewidth DFB Lasers Enabled by Self-Homodyne Coherent Detection and a 19-Core Fiber 査読あり
Benjamin J. Puttnam, José-Manuel Delgado Mendinueta, Jun Sakaguchi, Ruben S. Luís, Werner Klaus, Yoshinari Awaji, Naoya Wada, Atsushi Kanno, Tetsuya Kawanishi
2013 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC) OW1I.1 2013年03月
