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 Results 1 - 20 of 42  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
ITE-BCT, OCS, IEE-CMN, OFT 2022-11-11
13:50
Miyagi Forest-Sendai
(Primary: On-site, Secondary: Online)
A Numerical Study on Hilbert Transform Used in Direct-Detection Coherent Reception Using Kramers-Kronig Relation -- Comparison between Frequency Domain and Time Domain Realization --
Ryo Tamura (Tokyo Univ. of Science), Kariyawasam Amila (Kyushu Univ.), Joji Maeda (Tokyo Univ. of Science)
(Advance abstract in Japanese is available) [more]
OFT, OCS, IEE-CMN, ITE-BCT [detail] 2021-11-19
13:50
Online Online An Experimental Study on Compensation of Dispersion-induced Fading in Analogue Radio over Fiber System using Self-Phase Modulation
Kento Okunushi, Amila Kariyawasam, Joji Maeda (Tokyo Univ. of Science) OCS2021-32
It is known that the penalty due to chromatic-dispersion-induced power fading in radio-over-fiber links can be mitigated... [more] OCS2021-32
pp.21-26
PN, NS, OCS
(Joint)
2021-06-25
13:00
Online Online An experimental study on polarization multiplexing of analog RoF signals
Yo Nakamura, Amila Kariyawasam, Joji Maeda (Tokyo Univ. of Science) OCS2021-4
Analog Radio-over-Fiber (A-RoF) technology is expected to be adopted in next generation mobile fronthauls (MFH) because ... [more] OCS2021-4
pp.15-19
OPE, OCS, LQE 2020-10-23
09:05
Online Online A study on Kramers-Kronig receivers with regard to reduction of penalties due to sampling
Kentaro Toba, Takaha Fujita, Enzo Tsukui, Kariyawasam Indipalage Amila Sampath, Joji Maeda (Tokyo Univ. of Science) OCS2020-8 OPE2020-31 LQE2020-11
The direct detection method that reconstructs phase information using Kramers-Kronig (KK) relation is attracting attenti... [more] OCS2020-8 OPE2020-31 LQE2020-11
pp.1-6
OPE, OCS, LQE 2020-10-23
16:40
Online Online An Experimental Study on Repetition-Frequency Doubling of Regeneratively and Harmonically Mode-Locked Fiber Ring Laser
Yasuyuki Takayama, Kariyawasam Indipalage Amila Sampath, Joji Maeda (Tokyo Univ. of Science) OCS2020-21 OPE2020-44 LQE2020-24
Regeneratively and harmonically mode-locking is a method of extracting a modulation clock from generated pulse, and real... [more] OCS2020-21 OPE2020-44 LQE2020-24
pp.67-71
OCS, PN, NS
(Joint)
2019-06-20
13:50
Iwate MALIOS(Morioka) A Numerical Study on Receiver Sensitivity Degradation of Stokes Vector Modulation Signals
Ryo Suzuki, Kariyawasam Indipalage Amila Sampath, Joji Maeda (TUS) OCS2019-15
We numerically study the receiver sensitivity degradation of a DSP-assisted direct-detection receiver for Stokes vector-... [more] OCS2019-15
pp.25-29
OCS, CS
(Joint)
2019-01-17
13:15
Okinawa Nobumoto Ohama Memorial Hall (Ishigaki Island) A Study on Wavelength-Reuse WDM-PON using Reflective Semiconductor Optical Amplifier and Fabry-Perot Etalon
Takumi Shibata, Kariyawasam Indipalage Amila Sampath, Joji Maeda (Tokyo Univ. of Science) OCS2018-70
Wavelength-reuse using gain saturation of reflective semiconductor optical amplifier (RSOA) has been proposed as a color... [more] OCS2018-70
pp.13-18
CS, OCS
(Joint)
2018-01-29
14:30
Ehime Ehime University Compensation of modulation distortion in microwave Radio-over-Fiber systems by means of chromatic dispersion -- Improvement of OFDM radio transmission --
Shun Endo, Kariyawasam Indipalage Amila Sampath, Joji Maeda (Tokyo Univ. of Science) OCS2017-67
In radio over fiber systems, it is desirable to increase the depth of optical modulation in favor of large signal-to-noi... [more] OCS2017-67
pp.1-6
CS, OCS
(Joint)
2018-01-29
14:55
Ehime Ehime University WDM-PON with Wavelength Reuse Employing Semiconductor Optical Amplifier and Fabry-Perot Ethalon -- Automatic Tuning of Etalon and Experiments on Bi-Directional Transmission --
Takuya Izumisawa, Yoshiki Ikeda, Kariyawasam Indipalage Amila Sampath, Joji Maeda (Tokyo Univ. of Science) OCS2017-68
Wavelength-reuse is a technique for WDM-PON that realizes color-less optical network units (ONUs), where the downstream ... [more] OCS2017-68
pp.7-12
OCS, OPE, LQE 2017-10-27
10:20
Kumamoto Josaien, Sakuranobaba A study on equivalence between optical QAM transmission using phase-conjugated twin waves and polarization-multiplexed optical APSK transmission.
Toshiki Nakao, Kariyawasam Indipalage Amila Sampath, Joji Maeda (Tokyo Univ. of Science) OCS2017-49 OPE2017-81 LQE2017-54
Distortion compensation using phase-conjugated twin waves has been proposed to overcome the transmission limit of optica... [more] OCS2017-49 OPE2017-81 LQE2017-54
pp.67-71
R, EMD, CPM, LQE, OPE 2017-09-01
10:00
Aomori   Regeneratively and harmonically mode-locked fiber ring laser employing clock extraction from the second harmonic
Joji Maeda, Kai Sakuma, Kariyawasam Indipalage Amila Sampath (Tokyo Univ. of Science) R2017-33 EMD2017-27 CPM2017-48 OPE2017-57 LQE2017-30
Regenerative mode-locking is a technique of self-oscillation for pulsed lasers, where the electrical clock signal extrac... [more] R2017-33 EMD2017-27 CPM2017-48 OPE2017-57 LQE2017-30
pp.45-50
PN, NS, OCS
(Joint)
2017-06-16
09:20
Akita Akita Univ. WDM-PON with Wavelength-Reuse by means of Semiconductor Optical Amplifier and Fabry-Perot Ethalon -- Experiments on Bi-Directional Transmission --
Yoshiki Ikeda, Kariyawasam Indipalage Amila Sampath, Joji Maeda (Tokyo Univ. of Science) OCS2017-15
Wavelength-reuse is a technique for WDM-PON that realizes color-less optical network units (ONUs), where the downstream ... [more] OCS2017-15
pp.23-28
OCS, NS, PN
(Joint)
2016-06-23
10:25
Hokkaido Hokkaido University A Study on High Speed WDM-PON with Downstream Re-modulation using Gain Saturation of Semiconductor Optical Amplifier -- Bandwidth Limitation using Fabry-Perot Etalon and its Tuning --
Takuya Izumisawa, Yoshiki Ikeda, Yuto Omori, Joji Maeda (TUS) OCS2016-9
In wavelength-division multiplexed passive optical network (WDM-PON) systems, optical network units (ONUs) in the user s... [more] OCS2016-9
pp.1-4
OCS, NS, PN
(Joint)
2016-06-23
10:50
Hokkaido Hokkaido University Compensation of modulation distortion in microwave Radio-over-Fiber systems by means of chromatic dispersion -- A Study on RoF transmission of OFDM signals --
Shun Endo, Yuji Sakaki, Masanobu Miyauchi, Joji Maeda (TUS) OCS2016-10
In radio over fiber systems, it is desirable to increase the depth of optical modulation in favor of large signal to noi... [more] OCS2016-10
pp.5-9
EMT, MW, OPE, MWP, EST, IEE-EMT [detail] 2015-07-16
14:30
Hokkaido Kushiro City Lifelong Learning Center Rational harmonic mode-locked laser using a bismuth-oxide-based highly nonlinear erbium-doped fiber
Yutaka Fukuchi, Joji Maeda (Tokyo Univ. of Science) EMT2015-15 MW2015-53 OPE2015-27 EST2015-19 MWP2015-18
 [more] EMT2015-15 MW2015-53 OPE2015-27 EST2015-19 MWP2015-18
pp.41-46
EMT, MW, OPE, MWP, EST, IEE-EMT [detail] 2015-07-16
14:55
Hokkaido Kushiro City Lifelong Learning Center Widely wavelength-tunable ultra-flat frequency comb generation from a harmonically mode-locked fiber laser using a bismuth-based highly nonlinear erbium-doped fiber
Yutaka Fukuchi, Joji Maeda (Tokyo Univ. of Science) EMT2015-16 MW2015-54 OPE2015-28 EST2015-20 MWP2015-19
 [more] EMT2015-16 MW2015-54 OPE2015-28 EST2015-20 MWP2015-19
pp.47-50
NS, OCS, PN
(Joint)
2015-06-18
11:10
Fukui Fukui-shi-chiiki-kouryu An experimental study on bandwidth enhancement in WDM-PON using downstream re-modulation by means of gain saturation of semiconductor optical amplifier
Yuto Omori, Suguru Kurita, Yasuhiro Tsutsumi, Joji Maeda (TUS) OCS2015-11
Color-less optical network units that work at an arbitrary wavelength are anticipated in WDM-PON systems. Downstream re-... [more] OCS2015-11
pp.5-9
NS, OCS, PN
(Joint)
2015-06-18
11:35
Fukui Fukui-shi-chiiki-kouryu Compensation of modulation distortion in microwave Radio-over-Fiber systems by means of fiber dispersion
Masanobu Miyauchi, Kohei Kimura, Yasuhiro Tsutsumi, Joji Maeda (TUS) OCS2015-12
In radio over fiber systems, it is desirable to increase the depth of optical modulation in favor of large signal to noi... [more] OCS2015-12
pp.11-14
LQE, LSJ 2014-05-23
14:30
Fukui   Frequency-phase synchronization of regeneratively and harmonically mode-locked fiber ring laser using Digital Signal Processing -- A study on control algorithm --
Tatsuya Kaneko, Yuta Haga, Kota Imazeki, Satoshi Ebisawa, Joji Maeda (TUS) LQE2014-16
When synchronizing the repetition frequency of a regeneratively and harmonically mode-locked fiber ring laser to the ref... [more] LQE2014-16
pp.69-74
OCS, OPE, OFT
(Joint) [detail]
2014-02-28
13:35
Okinawa nest HOTEL Naha Proposal of Multistage-Feedforward Carrier Phase Estimation for Optical 16-QAM Signals
Hiroki Matsuto, Ryutaro Arita, Satoshi Ebisawa, Joji Maeda (TUS) OCS2013-112 OPE2013-224
M-th power algorithm known as a carrier phase estimation method in coherent optical detection has a limited estimation r... [more] OCS2013-112 OPE2013-224
pp.63-67(OCS), pp.103-107(OPE)
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