Ueno Lab. English/Japanese
Last updated: Jan. 21, 2014




laboratory logo

National University of Electro-Communications

Graduate School of Engineering Science
(previously, Graduate School of Electronic Engineering)

Chofu city, Tokyo, Japan

Official top site: www.ultrafast.ee.uec.ac.jp



Research Fields

Ultrafast opto-electronics, Quantum electronics, All-optical signal processing, Optical frequency comb

(Optical semiconductor materials, logic-gate circuits, and short-pulse generator circuits)


Research Topics

Ultrafast Optical Logics at 200 Gbit/s and beyond:
we're exploring advanced functions for building ultrahigh-speed optical-logic systems instead of the conventional electronic ones. We study their fundamental properties in the pulse-CW gating regime (e.g. wavelength conversion and 2R regeneration in the optical communications systems) and in the pulse-pulse gating regime (e.g. 3R regeneration). voice

Ultrahigh-Frequency Optical-Clock Generation:
we're studying our original ultrahigh-frequency, ultrashort, mode-locked pulse laser scheme that contains an SMZ-DISC-type wavelength-convertor structure. We're designing and characterizing its ring cavity in the following three domains, that is, in the time domain [ps], in the optical-frequency domain [THz], and in the radio-frequency domain [GHz], almost independently. voice

More recent Research Themes
Summary of on-going research topices in FY2008-2011 (as of November 2009)





Published Papers and Patents (total times of citation= 900)

Talks and their digest papers in international symposiums (in English),
and the others in domestic conferences (mostly in Japanese)

Bi-Annual Research-Activity Report, 2007-2008
(24 pages in PDF, 3.8 MB, summarized in July 2008.)

New! snap photos from our "Global, Real-World Collaborations"
between university students, engineers, and scientists, 2002-present.

Laboratory Resources

Laboratory Photos

On-going Research Targets, those in the coming Five Years, and their Backgrounds (Sept. 2006)

Research Outlines (8 pages in PDF, 260kB, summarized in June 2002.)


.
Recent Review Articles:


Recent Publications:
  • Yoshiyasu Ueno, 'Roadmap of ultrafast energy-saving optical semiconductor devices to Year 2025 (Invited talk),' Japanese Society of Applied Physics, Hiratsuka city, Kanagawa, Japan, March 17-20, 2010.
  • New! Takehiro Nishida, Satoshi Shinada, Naoya Wada, Takeru Yamaji, and Yoshiyasu Ueno, "Ultrafast distortion-free semiconductor-based all-optical gate that contains optical-spectrum's phase-and-amplitude synthesizer," 22nd Annual Meeting of IEEE Photonics Society, Oct. 4-8, 2009, Belek-Antalya, Turkey, paper no. TuB4. full text
  • Jun Sakaguchi, Takehiro Nishida, and Yoshiyasu Ueno, "200-Gb/s wavelength conversion using a delayed-interference all-optical semiconductor gate assisted by nonlinear polarization rotation," Optics Communications vol. 282, no. 9, pp. 1728-1733, May 2009. abstract , full text
  • Yoshiyasu Ueno, Jun Sakaguchi, Ryoichi Nakamoto, and Takehiro Nishida, "Ultrafast, low-energy-consumption, semiconductor-based, all-optical gate devices (Invited Talk)," 4th Asia-Pacific Microwave Photonics Conference (APMP 2009), April 22-24, 2009, Beijing, P.R. China. digest, voice, program.
  • Yoshiyasu Ueno, 'Recent trends in the research of ultrafast, all-optical semiconductor gate devices (Invited talk),' OCS-OPE-LQE symposium, Institute of Electronics, Information, and Communication Engineers (IEICE), Kawasaki, Japan, Sept. 16-19, 2008, paper BCI-1-6. full text (in Japanese)
  • Yoshiyasu Ueno, "Recent trends in the 200-Gb/s-class, 10-pJ/bit, compact, all-optical semiconductor gate devices research," 3rd International Symposium on Advanced Information and Communication Technology (AICT 2008), October 7-9, 2008, Information and Communications Univ. (ICU), Daejeon, Korea. digest , voice
  • Ryoichi Nakamoto, Hiroyuki Takeuchi, Jun Sakaguchi, and Yoshiyasu Ueno, "1.55-um, mode-locked, single-longitudinal-mode, 10-GHz, 2-ps, ultra-short optical pulse train from our original semiconductor-based pulse-source scheme," Topical Conference on Nanophotonics (NANO), Optical Society of America, May 26-29, 2008, Southeast Univ., Nanjing, P.R. China, paper no. Nano-08-191.
  • Jun Sakaguchi, "200-Gb/s waveform analysis of ultrafast all-optical semiconductor gates towards low-power consumption operation," June 26, 2008, PhD thesis, fully qualified by the COE program's standard in National University of Electro-Communications, Tokyo, Japan. full text in English (4.6MB)
  • Jun Sakaguchi, Mads L. Nielsen, Takashi Ohira, Rei Suzuki, and Yoshiyasu Ueno, "Analysis of sub-pulse generation from the delayed-interference signal-wavelength converter for a wide carrier recovery rate range," Jpn. J. Appl. Phys. vol. 47, no. 9, pp. 7182-7189, Sept. 2008. abstract , full text

  • other publications








Laboratory Members


Supervisor

Yoshiyasu Ueno, Professor



FY 2012


Shota Sakano, master course

Kyohei Hirai, master course

Keita Yoshikawa, master course

Masakazu Kobayashi, master course

Takaaki Nakane, since Dec. 13, 2011, undergraduate

Hajime Itagaki, since Dec. 13, 2011, undergraduate

Kazuyuki Nagahiro, since Dec. 5, 2011, undergraduate

Keisuke Takeda, since Dec. 13, 2011, undergraduate

Yusuke Minamide, since Dec. 12, 2012, undergraduate

Toshio Miyamoto, since Dec. 16, 2012, undergraduate

Toshinori Shibuya, since Dec. 18, 2012, undergraduate





the 9th Lab-members Camp in rural Lodge (both present and aluni research members),
the University Seminar House, Hachioji city, May 17-19, 2012.




FY 2011

Takahiro Arai, master course

Shota Sakano, master course

Akira Yamamoto, master course

Kyohei Hirai, master course

Keita Yoshikawa, master course

Abudukelimu Nuermaimaiti (Noor, or, Nurmamat Kerem), exchange-research student

Stefani Dyasih Ruswanti, exchange research-student


Masakazu Kobayashi, since Dec. 20, 2011, undergraduate

Ryunosuke Hayami, since Dec. 20, 2011, undergraduate

Hiroaki Yamamoto, since Jan.-March 2011, undergraduate

Yuto Kosaka, since Jan.-March 2011, undergraduate

Taku Aoki, since Jan.-March 2011, undergraduate

Keisuke Takeda, since Dec. 13, 2011, undergraduate

Hajime Itagaki, since Dec. 13, 2011, undergraduate

Kazuyuki Nagahiro, since Dec. 5, 2011, undergraduate

Takaaki Nakane, since Dec. 13, 2011, undergraduate


Collaborating Researchers, outside our university




the 8th Lab-members Camp in rural Lodge (10 research students and Ueno),
UEC Sugadaira-Heights Seminar House, Ueda city, Nagano prefecture, Sept. 16-18, 2011.



FY 2002-2010

Positions of our alumni members, in industry or academy.

Internships of our student members, in industry.

Recommendation letters evaluated, described, and signed by supervisor.





FY 2010

Kenta Sugiura, master course

Nguyen Tuan Anh, master course

Yasutaka Nakahara, master course

Takahiro Arai, master course

Shota Sakano, master course

Akira Yamamoto, master course

Huan Wang, master course (UEC-BUPT Jasso-scholarship exchange student)


Kyohei Hirai, undergraduate

Keita Yoshikawa, undergraduate

Taijun Kato, undergraduate

Akihisa Yorozu, undergraduate


Collaborating Researchers, outside our university
  • Drs. Naoya Wada and Satoshi Shinada, National Institute of Information and Communications Technology (NICT), Tokyo.
  • Prof. Jian Wu, Key Laboratory of Information Photonics and Optical Communications, Beijing Univ. of Posts and Telecommunications (BUPT), Beijing, P.R. China.



the 5th Lab-members Camp in rural Lodge, the University Seminar House,
Hachioji city, May 21-22, 2010.


FY 2009

Takehiro Nishida, master course

Takeru Yamaji, master course


Huan Wang, master course (UEC-BUPT Jasso-scholarship exchange student)

Nguyen Tuan Anh, master course

Yasutaka Nakahara, master course

Kenta Sugiura, master course


Takahiro Arai, undergraduate

Mika Inoue, undergraduate

Shota Sakano, undergraduate

Akira Yamamoto, undergraduate

Yasuhiro Ohno, undergraduate

Hetian Jia, class student*1, *2


Collaborating Researchers, outside our university
  • Dr. Naoya Wada, National Institute of Information and Communications Technology (NICT), Tokyo.
  • Dr. Satoshi Shinada, National Institute of Information and Communications Technology (NICT), Tokyo.
  • Dr. Kiyoshi Asakawa, National Institutr for Materials Science (NIMS), Tsukuba, Ibaraki.
  • Dr. Nobuhiko Ozaki, TARA center, University of Tsukuba, Tsukuba, Ibaraki.
  • Prof. Jian Wu, Key Laboratory of Information Photonics and Optical Communications, Beijing Univ. of Posts and Telecommunications (BUPT), Beijing, P.R. China.

----------
*1: Hetian Jia was approved on Nov. 2008 to hold a class-studentship from April until September, 2009, *2: He cancelled to start the studentship (Feb. 2009).
----------




the third-year Spring School, the University Seminar House, Hachioji city, May 15-16, 2009.



FY 2008

Jun Sakaguchi, PhD course

Takehiro Nishida, master course

Masanori Honma, master course

Hiroyuki Takeuchi, master course

Takeru Yamaji, master course

Nguyen Tuan Anh, undergrad

Yasutaka Nakahara, undergrad

Kenta Sugiura, undergrad

Pei Yu, undergrad (UEC-UESTC exchange student)


Collaborating Researchers, outside our university
  • Dr. Kiyoshi Asakawa, National Institutr for Materials Science (NIMS), Tsukuba, Ibaraki
  • Dr. Nobuhiko Ozaki, TARA center, University of Tsukuba, Tsukuba, Ibaraki
  • Dr. Satoshi Shinada, National Institute of Information and Communications Technology (NICT), Tokyo

----------
*1: J. Sakaguchi received his PhD degree in June 2008, and moved to a posdoc position in another academic group, *2: Pei Yu stays from Jan. 9, 2008 through Sept. 2008.
----------




the second-year Spring School, the University Seminar House, Hachioji city, May 16-17, 2008.


FY 2007

Ferran Salleras Vila, Dr., Research Associate

Jun Sakaguchi, PhD course

Ryoichi Nakamoto, master course

Takashi Ohira, master course

Takehiro Nishida, master course

Masanori Honma, master course

Hiroyuki Takeuchi, master course

Koichiro Inada, master course

Yuki Morimoto, undergrad

Takeru Yamaji, undergrad

Yuichi Inatomi, undergrad

Yu Kobukata, undergrad

Pei Yu, undergrad (UEC-UESTC exchange student)


Collaborating Researchers, outside our university
  • Prof. Kiyoshi Asakawa, TARA center, University of Tsukuba, Tsukuba, Ibaraki
  • Dr. Nobuhiko Ozaki, TARA center, University of Tsukuba, Tsukuba, Ibaraki
  • Dr. Shigeru Nakamura, NEC R&D Center, Tsukuba, Ibaraki
  • Dr. Kohsuke Nishimura, KDDI Laboratories, Kamifukuoka, Saitama




the first Spring School, University Seminar House, Hachioji city, May 11, 2007.
(the other three members were not included at the time.)
memorial photo with three alumni members in Hachioji Science Center, May 12, 2007.


FY 2006

Ferran Salleras Vila, Dr., Research Associate

Jun Sakaguchi, D2/D3

Takashi Ohira, M2

Ryoichi Nakamoto, M1

Koichiro Inada, U4

Masatosi Okuhira, U4

Takehiro Nishida, U4

Masanori Honma, U4



in front of the little fountain pond, the east campus, December 8, 2006.
(the other two members were absent.)



FY 2005

Ferran Salleras Vila, Dr., Research associate (Sept. 2005-)

Jun Sakaguchi, D2

Rei Suzuki, M2

Takashi Ohira, M1

Chenhong, M1

Mads Lønstrup Nielsen, Dr., Visiting researcher from COM, Technical University of Denmark

Ryoichi Nakamoto, U4

Hiroyuki Kasai, U4

Tomoaki Matsuo, U4

Kazuki Yanagisawa, U4



in our laboratory, December 22, 2005.


FY 2004

Jun Sakaguchi, D1

Masashi Toyoda, M2

Rei Suzuki, M1

Mads L. Nielsen, Dr., Visiting researcher from COM, Technical University of Denmark

Chenhong, Research Student

Takashi Ohira, U4

Tomoaki Kaneko, U4

Satoshi Kobayashi, U4

Ryoichi Nakamoto, U4



in our laboratory, July 9, 2004.


FY 2003

Masashi Toyoda, M1

Yusuke Sato, U4

Rei Suzuki, U4

Kouta Takayama, U4

Youhei Nagasue, U4



on top of Mt. Takao, May 11, 2003.


FY 2002

Sumio Ichinohe, U4



Academic Conferences

Sept. 2000, European Conference on Optical Communication (ECOC), Munich, Germany
March 2001, Optical Fiber Communication Conference (OFC), Anaheim, California
July 2001, Pacific Rim Conference on Lasers and Electro-Optics (CLEO PR), Makuhari
Sept. 2001, European Conference on Optical Communication (ECOC), Amsterdam, Netherlands
July 2002, 7th Optoelectronics and Communications Conference (OECC), Yokoyama
July 2002, IEEE/LEOS Summer Topical Meeting, Mont Tremblant, Quebec, Canada
Sept. 2002, European Conference on Optical Communication (ECOC), Copenhagen, Denmark
Sept. 2002, International Conference on Solid State Devices & Materials (SSDM), Nagoya
July 2003, Ultrafast Photonic Technology, Makuhari, Chiba
July 2003, 10th Femtosecond Technology Workshop (FST 2003), Makuhari, Chiba
Oct. 2003, IEEE LEOS Annual Mtg., Tucson, Arizona, USA
Feb. 2004, Optical Fiber Communication Conference (OFC), Los Angeles, USA
July 2004, 9th Optoelectronics and Communications Conference (OECC), Yokohama
March 2005, Optical Fiber Communication Conference (OFC 2005), Anaheim, CA, USA
OFC Workshop "All-optical wavelength conversion and signal processing for next generation networks" (this workshop's details site)
July 2005, International symposium on coherent optical science, Univ. of Electro-Communications, Tokyo
July 2005, 10th Optoelectronics and Communications Conference (OECC 2005), Seoul, Korea
July 2005, International Conference on Quantum Electronics 2005 and the Pacific Rim Conference on Lasers and Electro-Optics 2005 (IQEC/CLEO-PR 2005), Tokyo, Japan
August 2005, Optical Amplifiers and Their Applications (OAA 2005), Budapest, Hungary
All-optical symposium I, All-optical symposium II
Sept. 2005, 31st European Conference on Optical Communication (ECOC 2005), Glasgow, Scotland
Jan. 2006, International Symposium on Photonics and Advanced Networks (ISPAN 2006), UEC, Tokyo.
Jan. 2006, 9th International Symposium on Contemporary Photonics Technology (CPT 2006), Tokyo
March 2006, Optical Fiber Communication Conference (OFC 2006), Anaheim, CA, USA
April 2006, Asia-Pacific Microwave Photonics Conference (AP-MWP 2006), Kobe
May 2006, Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference (CLEO/QELS 2006), Long Beach, CA, USA
June 2006, Optical Amplifiers and Their Applications (OAA 2006), British Columbia, Canada
Sept. 2006, 32nd European Conference on Optical Communication (ECOC 2006), Cannes, France
March 2007, Optical Fiber Communication Conference (OFC 2007), Anaheim, CA, USA
July 2007, 12th Optoelectronics and Communications Conference (OECC 2007), July 9-13, 2007, Yokohama, Japan.
September 2007, Nonlinear Photonics topical meeting (NP 2007), Quebec city, Canada
September 2007, 2nd Triangle Symposium on Advanced ICT (AICT 2007), Beijing Univ. Posts and Telecommunications (BUPT), P.R. China.
December 2007, International Symposium on Coherent Optical Science, Univ. Electro-Communications, Tokyo.
May 2008, Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference (CLEO/QELS 2008), San Jose, CA, USA
May 2008, Topical Conference on Nanophotonics (NANO), Optical Society of America, May 26-29, 2008, Southeast Univ., Nanjing, P.R. China.
Oct. 2008, 3rd Triangle Symposium on Advanced Information and Communication Technology (TriSAI 2008, between ICU, BUPT, and UEC), Information and Communications Univ. (ICU), Daejeon, Korea
April 2009, 4th Asia-Pacific Microwave Photonics Conference (APMP 2009), co-sponsored by IEEE/LEOS, April 22-24, 2009, Beijing, P.R. China.
May-June, 2009, Conference on Lasers and Electro-Optics and International Quantum Electronics Conference (CLEO/IQEC 2009), May 31-June 5, 2009, Baltimore, Marylnd, USA.
Oct. 2009, 22nd Annual Meeting of IEEE Photonics Society (previously IEEE-LEOS), Oct. 4-8, 2009, Belek-Antalya, Turkey.
Oct. 2009, 4th Triangle Symposium on Advanced Information and Communication Technology (TriSAI 2009), October 28-30, 2009, National University of Electro-Communications (UEC), Tokyo, Japan.
Sept. 2010, 42nd International Conference on Solid Sate Devices and Materials (ssdm2010), Sept. 22-24, 2010, Univ. of Tokyo, Tokyo, Japan.
Oct. 2010, 5th Triangle Symposium on Advanced Information and Communication Technology (TriSAI 2010), October 25-27, 2010, Beijing University of Posts and Telecommunications (BUPT), Beijing, P.R. China.


Research Groups Worldwide that are working on technical fields close to ours

visitors to and from our laboratory

One-day visits from us to global research institutes

Visitors to our research laboratory

Almuni members stopping by our lab

travels of our laboratory members

New! Travels to conferences, exhibitions, and institutes

academic
  • Eindhoven Univ. of Technology, COBRA, Eindhoven, Netherlands: H.J.S. Dorren, H. de Waardt, E. Tangdiongga, Y. Liu, A.M.J. Koonen, M. Smit, G.D. Khoe, et al.
  • University of Karlsruhe, Karlsruhe, Germany: J. Leuthold, et al.
  • Technical University of Denmark, COM, Copenhagen (Lyngby), Denmark: Kristian Stubkjaer, J. Mørk, M.L. Nielsen, Leif K. Oxenløwe, P. Jeppesen, et al.
  • Univ. Southern California, USA: Alan E. Willner, et al.
  • Purdue University, Indiana, USA: Andrew M. Weiner, et al.
  • Heinrich Herz Institute of Technology, Berlin, Germany: R. Ludwig, B. Sartorius, H-P. Nolting, H.G. Weber, et al.
  • Univ. College Cork, Cork, Ireland: D. Cotter, R. Manning, A. Ellis, et al.
  • MIT Lincoln Lab., Boston, MA, USA: S. Hamilton, B. Robinson, et al.
  • Massachusetts Institute of Technology, Boston, USA: E.P. Ippen, et al.
  • Univ. California Santa Barbara, CA, USA: J.E. Bowers, D. Blumenthal, L. Coldren, et al.
  • Univ. Central Florida, Orlando, USA: P. Delfyett, G. Li, G.I. Stegeman, P. Li KamWa, et al.
  • Beijing Univ. of Posts and Telecommunications, Beijing, P.R. China: Jian Wu, Xiaobin Hong, Jinton Lin.
  • National Technical University of Athens, Athens, Greece: H. Avramopoulos, et al.
  • Univ. California Davis, CA, USA: B. Yoo, et al.
  • Univ. Cambridge, UK: R.V. Penty, et al.
  • Princeton Univ., Princeton, NJ, USA: P. Prucnal, I. Glesk et al.
  • Federal Institute of Technology, Zurich, Switzerland: H. Melchior, G. Guekos, et al.
  • Univ. of Tokushima, Tokushima: K. Tajima, et al.
  • Univ. Tsukuba, Tsukuba: K. Asakawa, Y. Sugimoto, et al.
  • National Institute of Advanced Industrial Science and Technol. (AIST), Tsukuba: H. Ishikawa, S. Ohkouchi, A. Onae, K. Minoshima, F-L. Hong, H. Tsuchida
  • Univ. Tokyo, Tokyo: Y. Nakano, Y. Arakawa, K. Kikuchi, S. Yamashita, T. Kamiya, M.K. Gonokami, et al.
  • Nara Institute of Science and Technol., Nara: H. Kawaguchi, et al.
  • National Defense Academy, Tokyo: M. Saruwatari, K. Tsuji, et al.
  • Tohoku University, Sendai: M. Nakazawa, et al.
  • National Institute of Information and Commun. Technol. (NICT), Koganei, Tokyo: T. Miyazaki, N. Wada, K.S. Abedin, M. Tsuchiya, Y. Matsushima, et al.
  • Tokyo Institute of Technology, Kanagawa: H. Uenohara, K. Kobayashi, T. Mizumoto, et al.
  • Tokyo Univ. of Agriculture and Technology, Tokyo: R. Lang
  • Osaka University: M. Matsumoto, K. Itoh, et al.
  • Univ. Electro-Communications, Tokyo: N. Kishi, M. Matsuura, K. Yamaguchi, K. Ueda, T. Miki, K. Hakuta, et al.

industry
  • KDDI R&D Labs., Kamifukuoka, Saitama: K. Nishimura, T. Yazaki, M. Hattori, M. Usami, Y. Matsushima, et al.
  • NEC R&D Labs., Tsukuba, Ibaraki: S. Nakamura, I. Ogura, Y. Hashimoto, T. Sasaki, et al.
  • NTT Photonics Labs., Atsugi, Kanagawa: Y. Yoshikuni, T. Segawa, H. Suzuki, M. Kodama, et al.
  • Fujitsu R&D Labs., Atsugi, Kanagawa: T. Akiyama, H. Kuwatsuka, et al.
  • Oki Electric R&D Labs., Hachioji, Tokyo: K. Fujii, H. Tsuji, H. Ogawa, et al.
  • Mitsubishi R&D Labs.
  • Anritsu R&D Labs., Atsugi, Kanagawa: A. Otani, et al.
  • Center for Integrated Photonics (previously British Telecom Labs.), Ipswich, UK: A.J. Poustie, G. Maxwell, et al.
  • Alcatel R&D Labs., Stuttgart, Germany: E. Lach, et al.
  • Lucent Technology, Bell Labs., Holmdel, NJ, USA: G. Raybon, et al.
  • Alphion, NJ, USA: J. Sarathy, B. Stefanov, L. Spiekman, et al.
  • Pritel, Inc., IL, USA: K. V. Reddy, et al.


News & History

  • Oct. 26, 2010: Ueno, representing many of both alumnus and present research students, was given the Best Paper Award from 5th TriSAI program committee, via the hands of Prof. Minho Kang, vice president of KAIST, Korea. Image of this Award.

  • Oct. 25-27, 2010: Laboratory member's 12th travel to research conference outside Japan (since 2005, excluding those of supervisor professor and posdoc researcher). For supervisor professor Y. Ueno, this is the 5th travel to mainland China.
    The conference is 5th Triangle Symposium on Advanced Information and Communication Technology (TriSAI), annually held between BUPT (Beijing, P.R. China), KAIST (Daejeon, Korea), and UEC (Tokyo, Japan).

  • Sept. 24-25, 2010: Lab-members Camp in rural Lodge, #6, University Seminar House, in hill-side area, Hachioji city, Tokyo. Ten students and one adviser professor.
  • May 21-22, 2010: Lab-members Camp in rural Lodge, #5, University Seminar House, in hill-side area, Hachioji city, Tokyo. Eleven students and one adviser professor. Total number of attendees was 13 persons, including the one potential applicant from industry in Japan to doctor-course research in our research laboratory.
  • Dec. 15, 2009: Applications of new Undergraduate Researh Students Kyohei Hirai and Keita Yoshikawa to our research laboratory were approved by adviser professor Ueno. (Those of Taijun Kato and Akihisa Yorozu were approved later on April 7th, 2010.)

  • Nov. 20-23, 2009 (two days of the four): Open Laboratory, 2009-3.
  • Oct. 5, 2009: One of the scholarshiped-exchange students Mr. Huan Wang arrived from BUPT Beijing at UEC Tokyo last week, and started his post-graduate-level research-oriented studies in our research lab from this week.
  • Oct. 04-08, 2009: One of master-course students (T. N.) presents one of our collaboration-research achievements at IEEE Photonics Society's Annual Meeting, Antalya, Turkey.
  • September 28-30, 2009: Lab-members Camp in rural Lodge, #4, Takao-no-Mori Waku-waku Village, Hachioji city, Tokyo.
  • August 15, 2009: Informal lab event between present members (Mt. Sannotoh, Tanzawa area, Kanagawa).
  • July 19, 2009: Open Laboratory, 2009-2.
  • May 23, 2009: Open Laboratory, 2009-1.
  • May 15-16, 2009: Lab-members Camp in rural Lodge, #3, University Seminar House, Hachioji city, Tokyo.
  • Dec. 16, 2008: Four new undergrad members joined our laboratory. (Another new member joined on April 9, 2009.)

  • June 26, 2008: Jun Sakaguchi received his COE-standard PhD degree defined by the 21st-Century Center of Excelence (COE) course 'Innovation in Coherent Optical Science," of the Univ. of Electro-Communications.
    *) His thesis "200-Gb/s waveform analysis of ultrafast all-optical semiconductor gates towards low-power consumption operation" has been approved by the six thesis-examiners (Profs. K. Yamaguchi, K. Ueda, T. Okuno, N. Kishi, T. Kamiya, and Y. Ueno) and the three international reviewers (Profs. J. Mørk from Denmark, J. Leuthold from Germany, and H. Dorren from the Netherlands).
  • May 16-17, 2008: Spring School of lab members in rural Lodge, #2, University Seminar House, Hachioji city, Tokyo.
  • Dec. 15, 2007: UEC's COE program, International Symposium on Coherent Optical Sciences, Univ. of Electro-Comm. (Nakamoto, Sakaguchi, and Salleras)
  • Sept. 18-20, 2007: Japan-China-Korea inter-university, 2nd Triangle Forum (R. Nakamoto, M. Honma, and Y. Ueno), Beijing University of Posts and Telecommunications, Beijing, P.R. China.
  • Sept. 6-14, 2007: Short stays in COBRA Research Institute, Eindhoven Univ. of Technology, and Research Center COM, Technical Univ. of Denmark (Y. Ueno).
  • May 11-12, 2007: Spring School of lab members in rural Lodge, #1, University Seminar House, Hachioji city, Tokyo.
  • Nov. 5, 2006: Informal lab event between present and alumni members.
  • May 13, 2006: Informal lab event between present and alumni members.
  • May 12, 2006: News release to a daily industrial newspaper, Nikkan Kogyo Shinbun (Japanese), about the successful 40-GHz pulse generation in our original scheme.
  • Feb. 18-19, 2006: Informal lab event: lab members' tour to a ski resort in Mt. Adatara, Fukushima, Japan.
  • September 2005: Dr. Ferran Salleras Vila joined us from the Swiss Federal Institute of Technology (EPFL, Lausanne, Prof. Benoit Deveaud), as a research associate.
  • July 2005: Second international research collaboration with Technical Univ. Denmark.
  • June 22, 2005: Grant-awarded from NEDO (collaboration research between Univ. Tsukuba, AIST, NEC, and us Univ. Electro-Comm., FY 2005-2007).
  • May 22, 2005: Informal lab event between present and alumni members (Mt. Sannotoh, Tanzawa area, Kanagawa).
  • July 18 & Nov. 19-20, 2004: Open Laboratory.
  • July-August, 2004: International resesarch collaboration with Technical Univ. Denmark.
  • May 15, 2004: Informal lab event between present and alumni members.
  • April 30th, 2004: Laboratory space was expanded to 120 m2.
  • Oct. 2003: Grant awarded from the Ministry of Education (FY 2003-2005).
  • July 19th, 2003: COE Univ. Program 'Coherent Photonics Science' was approved by the Ministry of Education (FY 2003-2007), campus news, the Ultrahigh-precision optical frequency control project in our UOL Lab.
  • April 30th, 2003: Laboratory space was expanded to 96 m2.
  • March 17th, 2003: 1st open seminar of the Photonic Information & Communication Technology Research Station, UEC
  • Nov. 22nd-23rd, 2002: Open Laboratory (Forum 2002, Univ. Electro-Comm.).
  • Oct. 16th, 2002: Brief reports from ECOC 2002.
  • July 9th, 2002: Ueno and 10 coauthors at NEC received the OECC 2002 Best Paper Award.
  • April 18th, 2002: 1st laboratory space (84 m2) was offered.
  • April 9th, 2002: Sumio Ichinohe joined.
  • March 1st, 2002: Yoshiyasu Ueno moved in and started up this new laboratory.


Links to related websites

Our Univ. of Electro-Communications (UEC), Tokyo, Japan:


Academic societies:
Some others:

Speciality Vendors List, for building our experimental setups

OTDM Publications News (virtual journal)

Standard Times in World-Wide Regions & Countries (incl. daytime-savings time)


Contacts/ Location of the Laboratory

Yoshiyasu Ueno, Prof.
Graduate School of Electronic Engineering
University of Electro-Communications
Chofu, Tokyo 182-8585, Japan
email: nospam-yoshiyasu.ueno@uec.ac.jp (or nospam-y.ueno@ieee.org)
[before emailing, remove 'nospam-' from the above email addresses.]
*** feel free to contact ***

Our telephone numbers:
+81-42-443-5207/5231 (w2-302 Office, 301 Laboratory)
+81-42-443-5729 (w7-513 Laboratory)
+81-42-443-5176 (w2-519 Laboratory)
fax: +81-42-443-5207 (common)

Our room numbers:
Building W2, Room W2-310 (Ueno's Office)
Building W2, Rooms W2-302, 301, 519 (Ueno Laboratory)
Building W7, Room W7-513 (Ueno Laboratory)
Building W3, Room W3-117 (Graduate students, ETL laboratory)
Building W8, Room W8-402, 413 (Undergrad students, Opto-electronics experiments classroom, ext. 3027)

Ground transportation to our laboratory: