Bit-rate-tunable regeneration of 30-Gbaud QPSK data using phase quantization and amplitude saturation. - 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; et al. (ECOC, 2014)

Experimental demonstration of all-optical phase noise mitigation of 40-Gbits/s QPSK signals by mixing differentially delayed nonlinear products. - 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; et al. (OFC, 2014)

Accurate bit error ratio monitor by spectral filtering and optical power measurements. - Shoichiro Oda; Tomohiro Yamauchi; Jeng-Yuan Yang; Youichi Akasaka; Olga Vassilieva; Yasuhiko Aoki; Motoyoshi Sekiya; Jens C. Rasmussen (OFC, 2014)

Experimental demonstration of Raman-assisted phase sensitive amplifier with negligible gain/power fluctuation. - 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 (ECOC, 2015)

Demonstration of a fine and coarse tunable buffer for multiple discrete and simultaneous signal access using a frequency comb, wavelength conversion and chromatic dispersion. - 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; et al. (ECOC, 2015)

Reconfigurable optical inter-channel interference compensation of 20/25-Gbaud QPSK signals using nonlinear wave mixing. - 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; et al. (ECOC, 2015)

Experimental demonstration of optical signal level swapping and multi-level amplitude noise mitigation using three parametric gain regions. - 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; et al. (OFC, 2015)

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. - 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; et al. (OFC, 2015)

Experimental demonstration of phase-sensitive regeneration of a 10-20 Gb/s BPSK channel without a phase-locked loop using Brillouin amplification. - 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; et al. (OFC, 2016)

Demonstration of automatically phase-locked self-homodyne detection with a low-power pilot tone based on brillouin amplification and optical frequency combs. - 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; et al. (OFC, 2016)

Experimental Investigation on the Effect of Central Wavelength Tuning of FBG-Based Phase Shifter for Raman-Assisted Phase Sensitive Amplifier. - 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; et al. (ECOC, 2017)

Experimental demonstration of Raman-assisted phase sensitive amplifier with reduced ASE noise level and more than 25dB net gain. - 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; et al. (OFC, 2017)

Experimental demonstration of tunable optical channel slicing and stitching to enable dynamic bandwidth allocation. - 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; et al. (OFC, 2017)

Experimental Utilization of Repeated Spatial-Mode Shifting for Achieving Discrete Delays in a Free-Space Recirculating Loop. - Ahmed Almaiman; A. Mohajerin-Ariaei; Guodong Xie; Zhe Zhao 003; Yinwen Cao; Fatemeh Alishahi; Peicheng Liao; Changjing Bao; Ahmad Fallahpour; B. Shamee; Youichi Akasaka; Shlomo Zach; et al. (OFC, 2018)

Demonstration of Multiple Kerr-Frequency-Comb Generation Using Different Lines from Another Kerr Comb Located up to a 50 km Distance. - Peicheng Liao; Changjing Bao; Ahmed Almaiman; Arne Kordts; Maxim Karpov; Martin Hubert Peter Pfeiffer; Lin Zhang 037; Fatemeh Alishahi; Kaiheng Zou; Yinwen Cao; Amirhossein Mohajerin Ariaei; Ahmad Fallahpour; et al. (OFC, 2018)

WDM Amplification of One Pump HNLF Based Phase Sensitive Amplifier with Static Pump Phase Tuning. - Youichi Akasaka; Yinwen Cao; Shigehiro Takasaka; Kenji Yamauchi; Koichi Maeda; Haoqian Song; Ryuichi Sugizaki; Alan E. Willner; Tadashi Ikeuchi (OFC, 2019)

Pilot Aided Compensation of Relative Phase Noise in Raman Amplified Coherent Transmission System with Forward Pumping. - Govind Vedala; Youichi Akasaka; Tadashi Ikeuchi; Rongqing Hui (OFC, 2019)

Fiber Raman Amplifier: Past and Future. - Youichi Akasaka (OECC/PSC, 2019)

Investigation of Hybrid S-band Amplifier Performance with 8-channel × 10 Gbaud 16-QAM signals. - Cheng Guo 011; Afshin Shamsshooli; Youichi Akasaka; Paparao Palacharla; Michael Vasilyev (ECOC, 2021)

Hybrid Amplification Approach to Communications beyond C- and L-Bands. - Youichi Akasaka (OFC, 2022)

Power consumption and FWM crosstalk analysis of a hybrid S-band amplifier based on two parametric wavelength converters and an EDFA. - Cheng Guo; Michael Vasilyev; Youichi Akasaka; Paparao Palacharla (OFC, 2022)

Alignment of zero-dispersion wavelength along highly-nonlinear fiber length with simultaneous increase in the stimulated Brillouin scattering threshold. - Cheng Guo; Michael Vasilyev; Youichi Akasaka; Paparao Palacharla (OFC, 2022)

S-band Amplifier Using Highly Nonlinear Fibers. - Youichi Akasaka; Shigehiro Takasaka; Ryuichi Sugizaki; Cheng Guo 011; Michael Vasilyev (OECC/PSC, 2022)

Pump RIN to Carrier Phase Noise Transfer in Distributed Fiber Raman System Evaluated through Carrier FM Noise Spectrum. - Rongqing Hui; Arin Dutta; Youichi Akasaka (ICTON, 2023)

Temperature-tuned two-segment highly-nonlinear fiber with increased stimulated Brillouin scattering threshold. - Cheng Guo; Michael Vasilyev; Youichi Akasaka; Paparao Palacharla; Shigehiro Takasaka; Ryuichi Sugizaki (OFC, 2023)

S+L Dual Band Silica Based EDFA Enabling Seamless Upgrade from C-band to S+C+L Triple Band System. - Youichi Akasaka; Paparao Palacharla (OFC, 2024)

Phase-preserving amplitude regeneration in a Mamyshev regenerator with group-delay-managed nonlinear medium and mid-stage optical phase conjugation. - Cheng Guo; Hamed Rabbani; Mohammad Awwad; Youichi Akasaka; Paparao Palacharla; Ryuichi Sugizaki; Shigehiro Takasaka; Michael Vasilyev (OFC, 2025)