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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
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Committee Date Time Place Paper Title / Authors Abstract Paper #
OPE, OCS, LQE 2020-10-23
16:05
Online Online Molecule-sensing scheme in which pair of distant comb-lines (delta 174 GHz) from all-optical semiconductor gate resonantly crosses acetylene-molecule's counterpart-pair of absorption lines.
Naoki Takahashi, Chaoyi Wang, Kyosuke Nagasaka, Yushi Suzuki, Kodai Ishida, Yoshiyasu Ueno (UEC) OCS2020-20 OPE2020-43 LQE2020-23
Portable dilute-gas-molecule-density measurement systems are bases for monitoring environmental load-gas densities in in... [more] OCS2020-20 OPE2020-43 LQE2020-23
pp.61-66
OPE, LQE, OCS 2018-10-18
15:00
Saga   Study on our all-optical-gate-type mode-locked laser's ring-laser-cavity configuration for modelling and then enhancing its output quantum-conversion efficiency
Kodai Ishida, Kengo Okano, Kyosuke Nagasaka, Batkhuyag Ganbat, Yukihiro Ishii, Makoto Takeshita, Yoshiyasu Ueno (UEC) OCS2018-35 OPE2018-71 LQE2018-60
We are expecting that mode-locked lasers are potentially one- or two-step more functional light sources when they are ad... [more] OCS2018-35 OPE2018-71 LQE2018-60
pp.41-46
OCS, OPE, LQE 2017-10-27
14:20
Kumamoto Josaien, Sakuranobaba 1-THz bandwidth, 10-GHz spaced optical frequency combs generated from all-optical-gate-based semiconductor mode-locked lasers
Makoto Takeshita, Kodai Ishida, Kengo Okano, Yoshiyasu Ueno (UEC) OCS2017-55 OPE2017-87 LQE2017-60
Optical frequency comb source is expected to contribute for improving performance of a rarefied-gas sensing, and its bro... [more] OCS2017-55 OPE2017-87 LQE2017-60
pp.97-102
OCS, OPE, LQE 2017-10-27
14:45
Kumamoto Josaien, Sakuranobaba Study on all-optical-gate-based semiconductor mode-locked laser's tolerance to each of detuning frequencies between this laser's total four eigen-frequencies for stabilizing its single ring-cavity-mode operation
Kengo Okano, Makoto Takeshita, Kodai Ishida, Yusuke Minamide, Yuki Setagawa, Yoshiyasu Ueno (UEC) OCS2017-56 OPE2017-88 LQE2017-61
High repetition frequency, short pulse width and time stability are required for the application of pulsed light as cloc... [more] OCS2017-56 OPE2017-88 LQE2017-61
pp.103-108
LQE, OPE, OCS 2016-10-27
11:25
Miyazaki Miyazaki Citizen's Plaza Narrow line-widths of third-order comb-components in optical-frequency-comb spectrum generated by our Giga-Herz all-optical-gate-based mode-locked pulsed laser
Kengo Okano, Kodai Ishida, Makoto Takeshita, Yuuki Setagawa, Shota Kawakami, Yusuke Minamide, Yoshiyasu Ueno (UEC) OCS2016-37 OPE2016-78 LQE2016-53
Mode-locked lasers which generate precise pulse trains and optical frequency-comb spectra are valuable light sources for... [more] OCS2016-37 OPE2016-78 LQE2016-53
pp.13-18
OPE, LQE, OCS 2015-10-30
11:40
Oita Beppu International Convention Center Line-width quality of each of optical comb components from our home-made, high-precision, all-optical-gate-based, 40-GHz pico-second mode-locked laser system
Makoto Takeshita, Yusuke Minamde, Yuuki Setagawa, Toshinori Shibuya, Yoshiyasu Ueno (UEC) OCS2015-61 OPE2015-111 LQE2015-80
Mode-locked pulse laser (optical frequency comb source) is expected to make a contribution to the ultrafast optical comm... [more] OCS2015-61 OPE2015-111 LQE2015-80
pp.101-106
OCS, OPE, LQE 2014-10-30
14:30
Nagasaki Nagasaki Museum of History and Culture Studies on upper limit of all-optical semiconductor gate's cutoff frequency after optically accelerating more strongly, along with enhancing current injection rate for compensating for thus accelerated electron-hole recombination rate.
Hajime Itagaki, Yusuke Minamide, Kazuyuki Nagahiro, Jun Sakaguchi, Yoshiyasu Ueno (UEC) OCS2014-50 OPE2014-94 LQE2014-68
 [more] OCS2014-50 OPE2014-94 LQE2014-68
pp.43-47
LQE 2009-05-22
11:15
Toyama Kanazawa Univ. Wavelength Dependences of Optical Phase and Amplitude Modulations in Semiconductor Waveguide
Masanori Honma, Ferran Salleras, Nguyen Tuan Anh, Yoshiyasu Ueno (Univ. of Electro-Comm.), Nobuhiko Ozaki (The Univ. of Tsukuba), Kiyoshi Asakawa (National Inst. for Materials Sci.) LQE2009-7
All-optical switching devices are one of the key elements in future photonic networks. They have some characteristics of... [more] LQE2009-7
pp.33-37
LQE 2007-12-07
14:55
Tokyo Kikai-Shinko-Kaikan Bldg. Quantum-conversion efficiencies in semiconductor optical amplifier and model of electric dc power consumption in ultrafast all-optical semiconductor gates using them
Jun Sakaguchi, Ferran Salleras, Yoshiyasu Ueno (UEC) LQE2007-120
Based on nine up-to-date types of semiconductor-optical-amplifier (SOA) samples, we devised a power-consumption model of... [more] LQE2007-120
pp.37-42
PN 2004-10-22
16:40
Tokyo Kikai-Shinko-Kaikan Bldg. 40Gb/s ultra fast optical 3R gate for suppressing the amplitude noise
Masashi Toyoda, Rei Suzuki, Yoshiyasu Ueno (Univ. of electro-Communications)
We modeled the PDSMZ-type(i.e., UNI-type) 3R gating scheme, serched for its optimum conditions such as pulse width, and ... [more] PN2004-56
pp.43-48
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