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Research Output 1995 2019

Article
4 Citations (Scopus)

(IPC) multigigabit relay link using millimeter-Wave radio-over-Fiber technologies

Kanno, A., Kawanishi, T., Ogawa, H., Shibagaki, N. & Hanyu, H., 2013 Dec, In : IEEE Photonics Journal. 5, 6, 7902909.

Research output: Contribution to journalArticle

Radio-over-fiber
relay
Millimeter waves
millimeter waves
Telecommunication links
6 Citations (Scopus)

1.3-μm wavelength-tunable quantum-dot optical frequency comb generator integrated with absorptive optical attenuator

Yamamoto, N., Akahane, K., Kawanishi, T., Katouf, R., Sotobayashi, H., Yoshioka, Y. & Takai, H., 2012 Feb, In : Physica Status Solidi (C) Current Topics in Solid State Physics. 9, 2, p. 282-285 4 p.

Research output: Contribution to journalArticle

attenuators
generators
quantum dots
wavelengths
inoculation
10 Citations (Scopus)

100 Gb/s DQPSK field trial: Live video transmission over an operating LambdaXtreme® network

Raybon, G., Winzer, P. J., Song, H., Adamiecki, A., Corteselli, S., Gnauck, A. H., Kissell, T., Fishman, D. A., Denkin, N. M., Kao, Y. H., Downs, T. L., Carenza, A., Scrudato, S., Goode, E. H., Thompson, W. A., Doerr, C. R., Buhl, L. L., Xia, T., Wellbrock, G., Lee, W. & 9 others, Lyons, G., Hofmann, P., Fisk, T. T., Basch, E. B., Kluge, W. J., Gatewood, J. R., Kawanishi, T., Higuma, K. & Painchaud, Y., 2010 Dec, In : Bell Labs Technical Journal. 14, 4, p. 85-114 30 p.

Research output: Contribution to journalArticle

Quadrature phase shift keying
Bearings (structural)
Polarization
Transmitters
Hardware
119 Citations (Scopus)

100-Gb/s DQPSK transmission: From laboratory experiments to field trials

Winzer, P. J., Raybon, G., Song, H., Adamiecki, A., Corteselli, S., Gnauck, A. H., Fishman, D. A., Doerr, C. R., Chandrasekhar, S., Buhl, L. L., Xia, T. J., Wellbrock, G., Lee, W., Basch, B., Kawanishi, T., Higuma, K. & Painchaud, Y., 2008 Oct 15, In : Journal of Lightwave Technology. 26, 20, p. 3388-3402 15 p.

Research output: Contribution to journalArticle

quadrature phase shift keying
multiplexing
traffic
division
grids
54 Citations (Scopus)

100-Gb/s DQPSK transmission experiment without OTDM for 100G ethernet transport

Daikoku, M., Morita, I., Taga, H., Tanaka, H., Kawanishi, T., Sakamoto, T., Miyazaki, T. & Fujita, T., 2007 Jan, In : Journal of Lightwave Technology. 25, 1, p. 139-145 7 p.

Research output: Contribution to journalArticle

quadrature phase shift keying
Ethernet
Quadrature phase shift keying
Electronic equipment
Modulation
10 Citations (Scopus)

100-GHz Fiber-Fed Optical-To-Radio Converter for Radio-And Power-Over-Fiber Transmission

Umezawa, T., Kashima, K., Kanno, A., Matsumoto, A., Akahane, K., Yamamoto, N. & Kawanishi, T., 2017 May 1, In : IEEE Journal on Selected Topics in Quantum Electronics. 23, 3, 7572186.

Research output: Contribution to journalArticle

converters
fibers
Fibers
electric power supplies
Photonics
7 Citations (Scopus)

100 GHz radio and power over fiber transmission through multi-core fiber using optical-to-radio converter

Umezawa, T., Dat, P. T., Kashima, K., Kanno, A., Yamamoto, N. & Kawanishi, T., 2017 Jul 26, (Accepted/In press) In : Journal of Lightwave Technology.

Research output: Contribution to journalArticle

converters
optical fibers
fibers
transistor amplifiers
quadrature amplitude modulation
3 Citations (Scopus)

10-Gb/s external modulation in optical CPFSK format

Sakamoto, T., Kawanishi, T., Miyazaki, T. & Izutsu, M., 2006 Apr 15, In : IEEE Photonics Technology Letters. 18, 8, p. 968-970 3 p.

Research output: Contribution to journalArticle

frequency shift keying
Frequency shift keying
format
time measurement
Modulation
1 Citation (Scopus)

10 Gbit/s FSK transmission over 95 km SMF using a LiNbO3 modulator

Fujita, T., Kawanishi, T., Higuma, K., Ichikawa, J., Shinada, S., Sakamoto, T. & Izutsu, M., 2005, In : IEICE Electronics Express. 2, 1, p. 32-36 5 p.

Research output: Contribution to journalArticle

frequency shift keying
Frequency shift keying
Single mode fibers
Modulators
modulators
54 Citations (Scopus)

10 GHz, 2.4 ps pulse generation using a single-stage dual-drive Mach-Zehnder modulator

Sakamoto, T., Kawanishi, T. & Tsuchiya, M., 2008 Apr 15, In : Optics Letters. 33, 8, p. 890-892 3 p.

Research output: Contribution to journalArticle

modulators
picosecond pulses
flatness
pulses
bandpass filters
2 Citations (Scopus)

10-GHz high-repetition optical short pulse generation from wavelength-tunable quantum dot optical frequency comb laser

Yamamoto, N., Akahane, K., Kawanishi, T., Sotobayashi, H., Yoshioka, Y. & Takai, H., 2013 Feb, In : IEICE Transactions on Electronics. E96-C, 2, p. 187-191 5 p.

Research output: Contribution to journalArticle

Emitter coupled logic circuits
Semiconductor quantum dots
Laser pulses
Wavelength
Laser mode locking
19 Citations (Scopus)

120-GB/S NRZ-DQPSK signal generation by a thin-lithium-niobate-substrate modulator

Kanno, A., Sakamoto, T., Chiba, A., Kawanishi, T., Higuma, K., Sudou, M. & Ichikawa, J., 2010 Jun 10, In : IEICE Electronics Express. 7, 11, p. 817-822 6 p.

Research output: Contribution to journalArticle

Light modulators
Optical waveguides
lithium niobates
multiplexing
Multiplexing
40 Citations (Scopus)

16-level quadrature amplitude modulation by monolithic quad-parallel Mach-Zehnder optical modulator

Chiba, A., Sakamoto, T., Kawanishi, T., Higuma, K., Sudo, M. & Ichikawa, J., 2010, In : Electronics Letters. 46, 3, p. 220-222 3 p.

Research output: Contribution to journalArticle

Light modulators
Quadrature amplitude modulation
Mach number
Modulators
Bandwidth
50 Citations (Scopus)

20-Gb/s QPSK W-band (75-110GHz) wireless link in free space using radio-over-fiber technique

Kanno, A., Inagaki, K., Morohashi, I., Sakamoto, T., Kuri, T., Hosako, I., Kawanishi, T., Yoshida, Y. & Kitayama, K. I., 2011 Apr 25, In : IEICE Electronics Express. 8, 8, p. 612-617 6 p.

Research output: Contribution to journalArticle

Radio-over-fiber
quadrature phase shift keying
Quadrature phase shift keying
Telecommunication links
fibers
121 Citations (Scopus)

25.6-Tb/s WDM transmission of polarization-multiplexed RZ-DQPSK signals

Gnauck, A. H., Charlet, G., Tran, P., Winzer, P. J., Doerr, C. R., Centanni, J. C., Burrows, E. C., Kawanishi, T., Sakamoto, T. & Higuma, K., 2008 Jan 1, In : Journal of Lightwave Technology. 26, 1, p. 79-84 6 p.

Research output: Contribution to journalArticle

Wavelength division multiplexing
Polarization
ultrahigh frequencies
polarization
grids

25-Gbaud 4-WDM Free-Space Optical Communication using High-Speed 2D Photodetector Array

Umezawa, T., Sakamoto, T., Kanno, A., Matsumoto, A., Akahane, K., Yamamoto, N. & Kawanishi, T., 2018 Jan 1, (Accepted/In press) In : Journal of Lightwave Technology.

Research output: Contribution to journalArticle

free-space optical communication
wavelength division multiplexing
photometers
high speed
filters
166 Citations (Scopus)

305 Tb/s space division multiplexed transmission using homogeneous 19-core fiber

Sakaguchi, J., Puttnam, B. J., Klaus, W., Awaji, Y., Wada, N., Kanno, A., Kawanishi, T., Imamura, K., Inaba, H., Mukasa, K., Sugizaki, R., Kobayashi, T. & Watanabe, M., 2013, In : Journal of Lightwave Technology. 31, 4, p. 554-562 9 p., 6296671.

Research output: Contribution to journalArticle

division
multiplexing
fibers
crosstalk
quadrature phase shift keying
177 Citations (Scopus)

40 Gb/s W-band (75-110 GHz) 16-QAM radio-over-fiber signal generation and its wireless transmission

Kanno, A., Inagaki, K., Morohashi, I., Sakamoto, T., Kuri, T., Hosako, I., Kawanishi, T., Yoshida, Y. & Kitayama, K. I., 2011 Dec 12, In : Optics Express. 19, 26

Research output: Contribution to journalArticle

quadrature amplitude modulation
fibers
quadrature phase shift keying
demodulation
polarization
19 Citations (Scopus)

5G transport networks: The need for new technologies and standards

Dat, P. T., Kanno, A., Yamamoto, N. & Kawanishi, T., 2016 Sep 1, In : IEEE Communications Magazine. 54, 9, p. 18-26 9 p., 7565268.

Research output: Contribution to journalArticle

Radio-over-fiber
Radio transmission
Fibers
Millimeter waves
Standardization

60GHZ band resonant type LiNbO 3 light modulator

Sasaki, M., Kawanishi, T. & Izutsu, M., 1999, In : Journal of the Communications Research Laboratory. 46, 3, p. 289-290 2 p.

Research output: Contribution to journalArticle

Light modulators
Modulation
Photonics
Modulators
Bandwidth
1 Citation (Scopus)

6-1 resonant type optical modulators for 10 GHz band

Kawanishi, T., Oikawa, S., Higuma, K., Matsuo, Y. & Izutsu, M., 2002 Mar, In : Journal of the Communications Research Laboratory. 49, 1, p. 73-80 8 p.

Research output: Contribution to journalArticle

Light modulators
Modulators
Light modulation
Modulation
Electrodes
2 Citations (Scopus)

75-km SMF transmission of optical 16 QAM signal generated by a monolithic quad-parallel Mach-Zehnder optical modulator

Chiba, A., Sakamoto, T., Kawanishi, T., Higuma, K., Sudo, M. & Ichikawa, J., 2011, In : IEEE Photonics Technology Letters. 23, 14, p. 977-979 3 p., 5759068.

Research output: Contribution to journalArticle

quadrature amplitude modulation
Light modulators
Quadrature amplitude modulation
Mach number
modulators
5 Citations (Scopus)

90 Gbaud NRZ-DP-DQPSK modulation with full-ETDM technique using high-speed optical IQ modulator

Kanno, A., Sakamoto, T., Chiba, A., Sudo, M., Higuma, K., Ichikawa, J. & Kawanishi, T., 2011 Jul, In : IEICE Transactions on Electronics. E94-C, 7, p. 1179-1186 8 p.

Research output: Contribution to journalArticle

Light modulators
Modulators
Modulation
Optical waveguides
Demonstrations

A 1.55-μm waveband optical absorption characterization of an electro-absorption device with a highly stacked InAs/InGaAlAs quantum dot structure

Yamamoto, N., Akahane, K., Umezawa, T. & Kawanishi, T., 2015 Aug 1, In : IEICE Transactions on Electronics. E98C, 8, p. 878-881 4 p.

Research output: Contribution to journalArticle

Light absorption
Semiconductor quantum dots
Stark effect
Electric fields
indium arsenide
10 Citations (Scopus)

A 10-GHz resonant-type LiNbO3 optical modulator array

Shinada, S., Kawanishi, T., Sakamoto, T., Andachi, M., Nishikawa, K., Kurokawa, S. & Izutsu, M., 2007 May 15, In : IEEE Photonics Technology Letters. 19, 10, p. 735-737 3 p.

Research output: Contribution to journalArticle

Light modulators
Modulators
modulators
Antennas
antennas
10 Citations (Scopus)

A bias condition monitor technique for the nested Mach-Zehnder modulator

Higuma, K., Mori, S., Kawanishi, T. & Izutsu, M., 2006 Jun 10, In : IEICE Electronics Express. 3, 11, p. 238-242 5 p.

Research output: Contribution to journalArticle

Modulators
Mach number
monitors
modulators
Mach-Zehnder interferometers
28 Citations (Scopus)

Adaptable access system: Pursuit of ideal future access system architecture

Kuri, T., Harai, H., Wada, N., Kawanishi, T. & Hosokawa, M., 2012 Mar, In : IEEE Network. 26, 2, p. 42-48 7 p., 6172274.

Research output: Contribution to journalArticle

Telecommunication networks
Stars
Virtualization
10 Citations (Scopus)

Adaptive threshold adjustment for signal-distortion-free digital-coherent optical demodulation system

Chiba, A., Sakamoto, T. & Kawanishi, T., 2008 Dec 22, In : Optics Express. 16, 26, p. 21647-21655 9 p.

Research output: Contribution to journalArticle

signal distortion
quadrature amplitude modulation
demodulation
format
adjusting

Advanced optical modulators for next-generation photonic networks

Kawanishi, T. & Sakamoto, T., 2006 Jun, In : Journal of the National Institute of Information and Communications Technology. 53, 2, p. 53-59 7 p.

Research output: Contribution to journalArticle

Frequency shift keying
Light modulators
Photonics
Modulators
Quadrature phase shift keying
26 Citations (Scopus)

Air-gap structure between integrated LiNbO3 optical modulators and micromachined Si substrates

Takigawa, R., Higurashi, E., Suga, T. & Kawanishi, T., 2011 Aug 15, In : Optics Express. 19, 17, p. 15739-15749 11 p.

Research output: Contribution to journalArticle

modulators
air
chips
micromachining
frequency modulation
9 Citations (Scopus)

All-optical modulation format conversion from frequency-shift-keying to phase-shift-keying

Kawanishi, T., Sakamoto, T. & Izutsu, M., 2005 Oct 3, In : Optics Express. 13, 20, p. 8038-8044 7 p.

Research output: Contribution to journalArticle

frequency shift keying
phase shift keying
light modulation
format
modulators

Amplitude modulation on millimeter-wave signal with low driving voltageusing reciprocating optical modulator

Sakamoto, T., Kawanishi, T., Shinada, S. & Izutsu, M., 2005, In : IEICE Electronics Express. 2, 7, p. 239-243 5 p.

Research output: Contribution to journalArticle

Amplitude modulation
Light modulators
Millimeter waves
millimeter waves
modulators
5 Citations (Scopus)

Analysis of Tunable Delay-Line Using an Optical Single-Sideband Modulator

Kawanishi, T. & Izutsu, M., 2003 Jul, In : IEICE Transactions on Electronics. E86-C, 7, p. 1230-1235 6 p.

Research output: Contribution to journalArticle

Electric delay lines
Modulators
Fiber Bragg gratings
Light amplifiers
Light modulators
1 Citation (Scopus)

An optical grating filter dry-etched on a LiNbO3 substrate

Shinada, S., Kawanishi, T., Sakamoto, T. & Izutsu, M., 2006 Jul 25, In : IEICE Electronics Express. 3, 14, p. 347-352 6 p.

Research output: Contribution to journalArticle

Diffraction gratings
Etching
gratings
filters
Plasma etching
2 Citations (Scopus)

A Novel Vector Spatial Field Mapping Technique Using Electro-Optic Sampling

Matsuo, Y., Kawanishi, T., Oikawa, S., Higuma, K. & Izutsu, M., 2004 Feb, In : IEICE Transactions on Electronics. E87-C, 2, p. 246-249 4 p.

Research output: Contribution to journalArticle

Electrooptical effects
Sampling
Crystals
Mirrors
Scanning
6 Citations (Scopus)

Array of patch-antennas with meandering-gaps on optical modulator for wireless millimeter-wave beam-steering

Wijayanto, Y. N., Kanno, A., Murata, H., Kawanishi, T., Yamamoto, N. & Okamura, Y., 2016 Mar 16, (Accepted/In press) In : International Journal of Microwave and Wireless Technologies. p. 1-7 7 p.

Research output: Contribution to journalArticle

Light modulators
Microstrip antennas
Millimeter waves
Radio-over-fiber
Light modulation
11 Citations (Scopus)

A semiconductor optical amplifier comprising highly stacked InAs quantum dots fabricated using the strain-compensation technique

Akahane, K., Yamamoto, N., Umezawa, T., Kanno, A. & Kawanishi, T., 2014, In : Japanese Journal of Applied Physics. 53, 4 SPEC. ISSUE, 04EG02.

Research output: Contribution to journalArticle

Semiconductor optical amplifiers
light amplifiers
Semiconductor quantum dots
quantum dots
Deterioration
314 Citations (Scopus)

Asymptotic formalism for ultraflat optical frequency comb generation using a Mach-Zehnder modulator

Sakamoto, T., Kawanishi, T. & Izutsu, M., 2007 Jun 1, In : Optics Letters. 32, 11, p. 1515-1517 3 p.

Research output: Contribution to journalArticle

flatness
modulators
formalism
bandwidth
1 Citation (Scopus)

Beam steering array antenna controlled by optical wavelength

Inagaki, K., Ohira, T., Kawanishi, T. & Izutsu, M., 2011 Aug 10, In : IEICE Electronics Express. 8, 15, p. 1221-1227 7 p.

Research output: Contribution to journalArticle

Beam forming networks
beam steering
beamforming
antenna arrays
Antenna arrays
33 Citations (Scopus)

Bias-free operational UTC-PD above 110 GHz and its application to high baud rate fixed-fiber communication and W-band photonic wireless communication

Umezawa, T., Kanno, A., Kashima, K., Matsumoto, A., Akahane, K., Yamamoto, N. & Kawanishi, T., 2016 Jul 1, In : Journal of Lightwave Technology. 34, 13, p. 3138-3147 10 p., 7453120.

Research output: Contribution to journalArticle

wireless communication
photodiodes
communication
photonics
fibers
6 Citations (Scopus)

Brewster's scattering angle and quasi-anomalous scattering in random scattering from dielectric interfaces

Kawanishi, T., Iwata, I., Kitano, M., Ogura, H., Wang, Z. L. & Izutsu, M., 1999, In : Journal of the Optical Society of America A: Optics and Image Science, and Vision. 16, 2, p. 339-342 4 p.

Research output: Contribution to journalArticle

Scattering
Angular distribution
Light scattering
6 Citations (Scopus)

Brewster's scattering angle in scattered waves from slightly rough metal surfaces

Kawanishi, T., 2000 Mar 27, In : Physical Review Letters. 84, 13, 2845.

Research output: Contribution to journalArticle

metal surfaces
scattering
electromagnetic scattering
evanescent waves
wave scattering
47 Citations (Scopus)

Broadband frequency-modulated continuous-wave signal generation by optical modulation technique

Kanno, A. & Kawanishi, T., 2014 Oct 15, In : Journal of Lightwave Technology. 32, 20, p. 3566-3572 7 p., 6802333.

Research output: Contribution to journalArticle

light modulation
continuous radiation
broadband
radar
optical heterodyning
29 Citations (Scopus)

Broadband light source using modulated quantum dot structures with sandwiched sub-nano separator (SSNS) technique

Yamamoto, N., Akahane, K., Kawanishi, T., Sotobayashi, H., Fujioka, H. & Takai, H., 2011 Feb, In : Physica Status Solidi (C) Current Topics in Solid State Physics. 8, 2, p. 328-330 3 p.

Research output: Contribution to journalArticle

separators
light sources
quantum dots
broadband
light amplifiers
43 Citations (Scopus)

Broadband wavelength-tunable ultrashort pulse source using a Mach-Zehnder modulator and dispersion-flattened dispersion-decreasing fiber

Morohashi, I., Sakamoto, T., Sotobayashi, H., Kawanishi, T. & Hosako, I., 2009 Aug 1, In : Optics Letters. 34, 15, p. 2297-2299 3 p.

Research output: Contribution to journalArticle

modulators
broadband
fibers
pulses
wavelengths

Characteristics of highly stacked InAs quantum-dot laser grown on vicinal (001)InP substrate

Akahane, K., Umezawa, T., Matsumoto, A., Yamamoto, N. & Kawanishi, T., 2016 Apr 1, In : Japanese Journal of Applied Physics. 55, 4, 04EJ16.

Research output: Contribution to journalArticle

Quantum dot lasers
Semiconductor lasers
semiconductor lasers
quantum dots
Substrates
44 Citations (Scopus)

Characterization of wavelength-tunable quantum dot external cavity laser for 1.3-μm-waveband coherent light sources

Yamamoto, N., Akahane, K., Kawanishi, T., Sotobayashi, H., Yoshioka, Y. & Takai, H., 2012 Feb, In : Japanese Journal of Applied Physics. 51, 2 PART 2, 02BG08.

Research output: Contribution to journalArticle

Laser resonators
coherent light
laser cavities
Semiconductor quantum dots
Light sources
47 Citations (Scopus)

Coaxial periodic optical waveguide

Kawanishi, T. & Izutsu, M., 2000, In : Optics Express. 7, 1, p. 10-22 13 p.

Research output: Contribution to journalArticle

optical waveguides
dielectric waveguides
Bessel functions
optical fibers
waveguides
65 Citations (Scopus)

Coherent radio-over-fiber and millimeter-wave radio seamless transmission system for resilient access networks

Kanno, A., Dat, P. T., Kuri, T., Hosako, I., Kawanishi, T., Yoshida, Y., Yasumura, Y. & Kitayama, K., 2012, In : IEEE Photonics Journal. 4, 6, p. 2196-2204 9 p., 6357204.

Research output: Contribution to journalArticle

radio transmission
Radio-over-fiber
Radio transmission
Millimeter waves
millimeter waves
20 Citations (Scopus)

Coherent Terahertz Wireless Signal Transmission Using Advanced Optical Fiber Communication Technology

Kanno, A., Kuri, T., Morohashi, I., Hosako, I., Kawanishi, T., Yoshida, Y. & Kitayama, K. I., 2015, In : Journal of Infrared, Millimeter, and Terahertz Waves. 36, 2, p. 180-197 18 p.

Research output: Contribution to journalArticle

Optical fiber communication
signal transmission
optical fibers
communication
Heterodyning