Kiyoto TAKAHATA


Long-Reach 100 Gbit Ethernet Light Source Based on 425-Gbit/s 1.3-µm InGaAlAs EADFB Lasers
Takeshi FUJISAWA Kiyoto TAKAHATA Takashi TADOKORO Wataru KOBAYASHI Akira OHKI Naoki FUJIWARA Shigeru KANAZAWA Takayuki YAMANAKA Fumiyoshi KANO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2011/07/01
Vol. E94-C  No. 7  pp. 1167-1172
Type of Manuscript:  Special Section PAPER (Joint Special Section on Opto-electronics and Communications for Future Optical Network)
Category: 
Keyword: 
100 Gbit Ethernetelectroabsorption modulatortransmitter optical subassemblycan-type package
 Summary | Full Text:PDF

High-Speed Optical Packet Processing Technologies for Optical Packet-Switched Networks
Hirokazu TAKENOUCHI Tatsushi NAKAHARA Kiyoto TAKAHATA Ryo TAKAHASHI Hiroyuki SUZUKI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/03/01
Vol. E88-C  No. 3  pp. 286-294
Type of Manuscript:  INVITED PAPER (Special Section on Optical Signal-Processing Devices for Photonic Networks)
Category: 
Keyword: 
optical packet switchingoptical packet processingserial-to-parallel converterparallel-to-serial converteroptical clock-pulse generatormulti-protocol label switchingMPLS
 Summary | Full Text:PDF

40-Gbit/s 16-bit Burst Optical Packet Generator Based on Photonic Parallel-to-Serial Conversion
Hirokazu TAKENOUCHI Kiyoto TAKAHATA Tatsushi NAKAHARA Ryo TAKAHASHI Hiroyuki SUZUKI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/05/01
Vol. E87-C  No. 5  pp. 825-827
Type of Manuscript:  LETTER
Category: Optoelectronics
Keyword: 
optical packet generationparallel-to-serial conversionpacket-switched networkmetal-semiconductor-metal photodetector
 Summary | Full Text:PDF

Compact High-Power Photonic Millimeter-Wave Emitter Module for 60-GHz-Band Fiber Radio Links
Yoshiyuki DOI Seiji FUKUSHIMA Kiyoto TAKAHATA Kaoru YOSHINO Hiroshi ITO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2003/07/01
Vol. E86-C  No. 7  pp. 1311-1317
Type of Manuscript:  INVITED PAPER (Special Issue on Recent Progress in Microwave and Millimeter-wave Photonics Technologies)
Category: MWP Devices
Keyword: 
fiber radio linkUTC-PDphotonic millimeter-wave emitterPSK transmission
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60-GHz Monolithic Photonic Millimeter-Wave Emitter for Fiber-Radio Applications
Kiyoto TAKAHATA Yoshifumi MURAMOTO Seiji FUKUSHIMA Tomofumi FURUTA Tetsuichiro OHNO Tadao ISHIBASHI Hiroshi ITO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2002/06/01
Vol. E85-C  No. 6  pp. 1378-1380
Type of Manuscript:  LETTER
Category: Integrated Electronics
Keyword: 
fiber-radiomillimeter-wave emitterUTC-PDmonolithic integration
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Optically-Fed Radio Access Point Module for a Fibre-Radio Downlink System
Seiji FUKUSHIMA Hideki FUKANO Kaoru YOSHINO Yutaka MATSUOKA Seiko MITACHI Kiyoto TAKAHATA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2001/02/01
Vol. E84-C  No. 2  pp. 271-273
Type of Manuscript:  LETTER
Category: Microwaves, Millimeter-Waves
Keyword: 
fibre-radioaccess pointUTC-PDpatch antenna
 Summary | Full Text:PDF

10-Gbit/s InP-Based High-Performance Monolithic Photoreceivers Consisting of p-i-n Photodiodes and HEMT's
Kiyoto TAKAHATA Yoshifumi MURAMOTO Kazutoshi KATO Yuji AKATSU Atsuo KOZEN Yuji AKAHORI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2000/06/25
Vol. E83-C  No. 6  pp. 950-958
Type of Manuscript:  Special Section PAPER (Special Issue on Advanced Optical Devices for Next Generation High-Speed Communication Systems and Photonic Networks)
Category: High-Speed Optical Devices
Keyword: 
integrated optoelectronicsoptical receiverswaveguide p-i-n photodiodesHEMT
 Summary | Full Text:PDF