Youichi Akasaka

28 papers Unranked 28

Year	Rank	Type	Title / Venue / Authors
2025	—	`conf`	EDFA-BDFA Cascaded S-Band Amplification from 1452nm to 1526nm with Flat-Gain and Low Noise Figure by Placing 980nm Pumped EDFA First with Very High Population Inversion. ECOC Youichi Akasaka, Jiawei Luo, Vitaly Mikhailov, Rasmus V. Jensen, David J. DiGiovanni, Paparao Palacharla
2025	—	`conf`	Phase-preserving amplitude regeneration in a Mamyshev regenerator with group-delay-managed nonlinear medium and mid-stage optical phase conjugation. OFC Cheng Guo, Hamed Rabbani, Mohammad Awwad, Youichi Akasaka, Paparao Palacharla, Ryuichi Sugizaki, Shigehiro Takasaka, Michael Vasilyev
2024	—	`conf`	S+L Dual Band Silica Based EDFA Enabling Seamless Upgrade from C-band to S+C+L Triple Band System. OFC Youichi Akasaka, Paparao Palacharla
2023	—	`conf`	Pump RIN to Carrier Phase Noise Transfer in Distributed Fiber Raman System Evaluated through Carrier FM Noise Spectrum. ICTON Rongqing Hui, Arin Dutta, Youichi Akasaka
2023	—	`conf`	Temperature-tuned two-segment highly-nonlinear fiber with increased stimulated Brillouin scattering threshold. OFC Cheng Guo, Michael Vasilyev, Youichi Akasaka, Paparao Palacharla, Shigehiro Takasaka, Ryuichi Sugizaki
2022	—	`conf`	Alignment of zero-dispersion wavelength along highly-nonlinear fiber length with simultaneous increase in the stimulated Brillouin scattering threshold. OFC Cheng Guo, Michael Vasilyev, Youichi Akasaka, Paparao Palacharla
2022	—	`conf`	Hybrid Amplification Approach to Communications beyond C- and L-Bands. OFC Youichi Akasaka
2022	—	`conf`	Power consumption and FWM crosstalk analysis of a hybrid S-band amplifier based on two parametric wavelength converters and an EDFA. OFC Cheng Guo, Michael Vasilyev, Youichi Akasaka, Paparao Palacharla
2022	—	`conf`	S-band Amplifier Using Highly Nonlinear Fibers. OECC/PSC Youichi Akasaka, Shigehiro Takasaka, Ryuichi Sugizaki, Cheng Guo, Michael Vasilyev
2021	—	`conf`	Investigation of Hybrid S-band Amplifier Performance with 8-channel × 10 Gbaud 16-QAM signals. ECOC Cheng Guo, Afshin Shamsshooli, Youichi Akasaka, Paparao Palacharla, Michael Vasilyev
2019	—	`conf`	Fiber Raman Amplifier: Past and Future. OECC/PSC Youichi Akasaka
2019	—	`conf`	Pilot Aided Compensation of Relative Phase Noise in Raman Amplified Coherent Transmission System with Forward Pumping. OFC Govind Vedala, Youichi Akasaka, Tadashi Ikeuchi, Rongqing Hui
2019	—	`conf`	WDM Amplification of One Pump HNLF Based Phase Sensitive Amplifier with Static Pump Phase Tuning. OFC Youichi Akasaka, Yinwen Cao, Shigehiro Takasaka, Kenji Yamauchi, Koichi Maeda, Haoqian Song, Ryuichi Sugizaki, Alan E. Willner, Tadashi Ikeuchi
2018	—	`conf`	Demonstration of Multiple Kerr-Frequency-Comb Generation Using Different Lines from Another Kerr Comb Located up to a 50 km Distance. OFC Peicheng Liao, Changjing Bao, Ahmed Almaiman, Arne Kordts, Maxim Karpov, Martin Hubert Peter Pfeiffer, Lin Zhang, Fatemeh Alishahi, Kaiheng Zou, Yinwen Cao, Amirhossein Mohajerin Ariaei, Ahmad Fallahpour, Moshe Tur, Youichi Akasaka, Tobias J. Kippenberg, Alan E. Willner
2018	—	`conf`	Experimental Utilization of Repeated Spatial-Mode Shifting for Achieving Discrete Delays in a Free-Space Recirculating Loop. OFC Ahmed Almaiman, A. Mohajerin-Ariaei, Guodong Xie, Zhe Zhao, Yinwen Cao, Fatemeh Alishahi, Peicheng Liao, Changjing Bao, Ahmad Fallahpour, B. Shamee, Youichi Akasaka, Shlomo Zach, Nadav Cohen, Moshe Tur, Alan E. Willner
2017	—	`conf`	Experimental Investigation on the Effect of Central Wavelength Tuning of FBG-Based Phase Shifter for Raman-Assisted Phase Sensitive Amplifier. ECOC Yinwen Cao, Haoqian Song, Youichi Akasaka, Ahmed Almaiman, Amirhossein Mohajerin Ariaei, Changjing Bao, Peicheng Liao, Fatemeh Alishahi, Ahmad Fallahpour, Tadashi Ikeuchi, Dmitry Starodubov, Joseph D. Touch, Alan E. Willner
2017	—	`conf`	Experimental demonstration of Raman-assisted phase sensitive amplifier with reduced ASE noise level and more than 25dB net gain. OFC Yinwen Cao, Ahmed Almaiman, Youichi Akasaka, Fatemeh Alishahi, Morteza Ziyadi, A. Mohajerin-Ariaei, Changjing Bao, Peicheng Liao, Ahmad Fallahpour, B. Shamee, Tadashi Ikeuchi, Shigehiro Takasaka, Ryuichi Sugizaki, Joseph D. Touch, Moshe Tur, Alan E. Willner
2017	—	`conf`	Experimental demonstration of tunable optical channel slicing and stitching to enable dynamic bandwidth allocation. OFC Yinwen Cao, Ahmed Almaiman, Morteza Ziyadi, A. Mohajerin-Ariaei, Changjing Bao, Peicheng Liao, Fatemeh Alishahi, Ahmad Fallahpour, Youichi Akasaka, Carsten Langrock, Martin M. Fejer, Joseph D. Touch, Moshe Tur, Alan E. Willner
2016	—	`conf`	Demonstration of automatically phase-locked self-homodyne detection with a low-power pilot tone based on brillouin amplification and optical frequency combs. OFC Yinwen Cao, Ahmed Almaiman, Morteza Ziyadi, Peicheng Liao, A. Mohajerin-Ariaei, Fatemeh Alishahi, Changjing Bao, Ahmad Fallahpour, B. Shamee, Youichi Akasaka, Tadashi Ikeuchi, Steven R. Wilkinson, Joseph D. Touch, Moshe Tur, Alan E. Willner
2016	—	`conf`	Experimental demonstration of phase-sensitive regeneration of a 10-20 Gb/s BPSK channel without a phase-locked loop using Brillouin amplification. OFC Ahmed Almaiman, Yinwen Cao, Morteza Ziyadi, Peicheng Liao, A. Mohajerin-Ariaei, Changjing Bao, Fatemeh Alishahi, Ahmad Fallahpour, B. Shamee, Asher J. Willner, Nisar Ahmed, Youichi Akasaka, Tadashi Ikeuchi, Steven R. Wilkinson, Moshe Tur, Alan E. Willner
2015	—	`conf`	Demonstration of a fine and coarse tunable buffer for multiple discrete and simultaneous signal access using a frequency comb, wavelength conversion and chromatic dispersion. ECOC Ahmed Almaiman, A. Mohajerin-Ariaei, Morteza Ziyadi, Yinwen Cao, Changjing Bao, Peicheng Liao, B. Shamee, Youichi Akasaka, Jeng-Yuan Yang, M. Sekiya, Carsten Langrock, Martin M. Fejer, Loukas Paraschis, Moshe Tur, Alan E. Willner
2015	—	`conf`	Experimental demonstration of Raman-assisted phase sensitive amplifier with negligible gain/power fluctuation. ECOC Youichi Akasaka, Jeng-Yuan Yang, M. Sekiya, Tadashi Ikeuchi, Yinwen Cao, Ahmed Almaiman, Morteza Ziyadi, A. Mohajerin-Ariaei, Peicheng Liao, Alan E. Willner, Shigehiro Takasaka, Ryuichi Sugizaki
2015	—	`conf`	Experimental demonstration of optical signal level swapping and multi-level amplitude noise mitigation using three parametric gain regions. OFC Yinwen Cao, Morteza Ziyadi, Youichi Akasaka, Amirhossein Mohajerin Ariaei, Jeng-Yuan Yang, Ahmed Almaiman, Peicheng Liao, Shigehiro Takasaka, Ryuichi Sugizaki, Joseph D. Touch, M. Sekiya, Moshe Tur, Alan E. Willner
2015	—	`conf`	Experimental demonstration of tunable phase-noise mitigation and automatic frequency/phase locking for a 20-32 Gbaud QPSK homodyne receiver using optical mixing of nonlinearly generated higher harmonics. OFC A. Mohajerin-Ariaei, Morteza Ziyadi, M. R. Chitgarha, Ahmed Almaiman, Yinwen Cao, Youichi Akasaka, Jeng-Yuan Yang, M. Sekiya, Joseph D. Touch, Moshe Tur, Shigehiro Takasaka, Ryuichi Sugizaki, Carsten Langrock, Martin M. Fejer, Alan E. Willner
2015	—	`conf`	Reconfigurable optical inter-channel interference compensation of 20/25-Gbaud QPSK signals using nonlinear wave mixing. ECOC Yinwen Cao, Morteza Ziyadi, A. Mohajerin-Ariaei, Ahmed Almaiman, P. Liao, Changjing Bao, B. Shamee, J. Yang, Youichi Akasaka, M. Sekiya, Moshe Tur, Carsten Langrock, Martin M. Fejer, Joseph D. Touch, Alan E. Willner
2014	—	`conf`	Accurate bit error ratio monitor by spectral filtering and optical power measurements. OFC Shoichiro Oda, Tomohiro Yamauchi, Jeng-Yuan Yang, Youichi Akasaka, Olga Vassilieva, Yasuhiko Aoki, Motoyoshi Sekiya, Jens C. Rasmussen
2014	—	`conf`	Bit-rate-tunable regeneration of 30-Gbaud QPSK data using phase quantization and amplitude saturation. ECOC A. Mohajerin-Ariaei, Youichi Akasaka, Jeng-Yuan Yang, M. R. Chitgarha, Morteza Ziyadi, Yinwen Cao, Ahmed Almaiman, Joseph D. Touch, Moshe Tur, M. Sekiya, Shigehiro Takasaka, Ryuichi Sugizaki, Carsten Langrock, Martin M. Fejer, Alan E. Willner
2014	—	`conf`	Experimental demonstration of all-optical phase noise mitigation of 40-Gbits/s QPSK signals by mixing differentially delayed nonlinear products. OFC A. Mohajerin-Ariaei, M. R. Chitgarha, Morteza Ziyadi, Salman Khaleghi, Ahmed Almaiman, M. J. Willner, Joseph D. Touch, Jeng-Yuan Yang, Youichi Akasaka, M. Sekiya, Moshe Tur, Loukas Paraschis, Carsten Langrock, Martin M. Fejer, Alan E. Willner