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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| OPE, LQE, OCS | 2015-10-30 13:50 |
Oita | Beppu International Convention Center | Single-Sideband Modulation Using High Extinction-Ratio Parallel Mach-Zehnder Modulator with Third-Order Harmonic Superposition Yuya Yamaguchi (Waseda Univ.), Atsushi Kanno (NICT), Tetsuya Kawanishi (Waseda Univ./NICT), Masayuki Izutsu (JSPS/Waseda Univ.), Hirochika Nakajima (Waseda Univ.)  OCS2015-77 OPE2015-127 LQE2015-96 |
(Advance abstract in Japanese is available) [more] | OCS2015-77 OPE2015-127 LQE2015-96 pp.177-180 |
| MWP | 2014-11-05 15:50 |
Miyagi | RIEC, Tohoku Univ. | Optical two-tone signal generation using high extinction-ratio modulator integrated with active Y-branch Yuya Yamaguchi, Kazuki Seki, Hiroyuki Koyano (Waseda Univ.), Atsushi Kanno, Tetsuya Kawanishi (NICT), Masayuki Izutsu, Hirochika Nakajima (Waseda Univ.) MWP2014-46 |
We demonstrated an optical two-tone signal generation using high extinction-ratio modulator with active Y-branch. By usi... [more] | MWP2014-46 pp.25-28 |
| EMT, OPE, MW, IEE-EMT [detail] | 2010-07-29 13:30 |
Hokkaido | Hokkaido Univ. | High efficiency and downsizing of a resonant type LiNbO3 optical modulator with Au mirror Yuta Takahashi, Yuta Tsuchiya (Waseda Univ.), Satoshi Shinada, Shinya Nakajima, Tetsuya Kawanishi (NICT), Hirochika Nakajima (Waseda Univ.) MW2010-43 OPE2010-28 |
We aim to attempt high efficiency and downsizing of an LiNbO3 optical modulator widely used in the optical communication... [more] | MW2010-43 OPE2010-28 pp.33-36 |
| OPE, LQE | 2010-06-25 17:15 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Examination about bias control method of parallel LiNbO3 optical modulators Yuta Tsuchiya (Waseda Univ.), Takahide Sakamoto, Tetsuya Kawanishi (NICT), Hirochika Nakajima (Waseda Univ.) OPE2010-21 LQE2010-23 |
We improved extinction ratio by putting a new electrode on a Y-branch structure at input side of a Mach-Zehnder interfer... [more] | OPE2010-21 LQE2010-23 pp.31-35 |
| PN | 2010-03-09 14:45 |
Okinawa | Ohama Nobumoto Memorial Hall | Desirable Photonic Circuits for Photonic Network
-- Not only integration but also conference is required in photonic circuits -- Hirochika Nakajima (Waseda Univ.) PN2009-101 |
The author would like to adjust each role and function of electronics and photonics over the half century and beyond tow... [more] | PN2009-101 pp.85-89 |
| OPE, LQE, OCS | 2009-10-23 09:20 |
Fukuoka | High Extinction Ratio LiNbO3 MZ modulator with active Y-branch Yoshihiro Ogiso, Yuta Tsuchiya (Waseda Univ.), Satoshi Shinada, Shinya Nakajima, Tetsuya Kawanishi (NICT), Hirochika Nakajima (Waseda Univ.) OCS2009-64 OPE2009-130 LQE2009-89 |
We have fabricated a high extinction ratio (50 dB) LiNbO3 MZ modulator with active Y-branch which characteristics are eq... [more] | OCS2009-64 OPE2009-130 LQE2009-89 pp.117-120 |
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| OPE, EMD, CPM, LQE | 2009-08-20 09:30 |
Miyagi | Optical amplification characteristics of Ti-indiffused waveguides on Erbium-doped LiNbO3 crystal and application to optical devices Yutaro Katano, So Kogahara, Hiroshi Matsuura (Waseda Univ.), Satoshi Shinada, Shinya Nakajima, Tetsuya Kawanishi (NICT), Hirochika Nakajima (Waseda Univ.) EMD2009-27 CPM2009-51 OPE2009-75 LQE2009-34 |
We have fabricated and characterized Ti-diffused channel waveguides on Er-doped LiNbO3 (Er-LN) single crystal. A loss-co... [more] | EMD2009-27 CPM2009-51 OPE2009-75 LQE2009-34 pp.7-11 |
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| PN | 2009-03-09 15:10 |
Okinawa | Yonaguni Island | [Invited Talk]
LiNbO3(LN) devices in Photonic Network
-- Why LN devices still survive in High-end Communications -- Hirochika Nakajima (Waseda Univ.) PN2008-91 |
LN waveguide devices are still effective in real fields and R&D of Photonic Network. Why are they so robust and useful w... [more] | PN2008-91 pp.41-46 |
| PN | 2007-03-07 10:50 |
Kagoshima | Yakushima-Kankyou-Bunkamura-Center (Yakushima) | Optical amplification characteristics of Ti-diffused waveguides on Er-doped LiNbO3 crystal and application to modulator So Kogahara (Waseda Univ.), Satoshi Shinada, Shinya Nakajima, Tetsuya Kawanishi (NICT), Hirochika Nakajima (Waseda Univ.), Masayuki Izutsu (NICT) PN2006-100 |
We have fabricated and characterized Ti-diffused channel waveguides on Er-doped LiNbO3 single crystal. We achieved an op... [more] | PN2006-100 pp.77-80 |
| PN | 2006-03-16 14:45 |
Okinawa | Highly efficient waveguide wavelength converter for all-optical communication systems Yusuke Usui, Toru Okubo, Hirochika Nakajima (Waseda Univ.), Sunao Kurimura (NIMS), Masayuki Motoya (Nihon Univ.), Futoshi Yamamoto, Junichiro Ichikawa (Sumitomo Osaka Cement Co., LTD.) |
Efficient wavelength converter was demonstrated in low-loss adhered ridge waveguide fabricated by dry etching in periodi... [more] | PN2005-105 pp.39-42 |
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| PN | 2004-10-22 15:50 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Periodically Poled Zn doped LiNbO3 Wavelength Converter with Adhered Ridge Waveguide Yuji Kato, Masayuki Maruyama, Hirochika Nakajima (Waseda Univ.), Sunao Kurimura (Waseda Univ./NIMS), Shoichiro Yamaguchi, Minoru Imaeda (NGK) |
[more] | PN2004-54 pp.31-35 |
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