Demonstration of WDM OSNR performance monitoring and operating guidelines for pol-muxed 200-Gbit/s 16-QAM and 100-Gbit/s QPSK data channels. - M. R. Chitgarha; Salman Khaleghi; W. Daab; Morteza Ziyadi; Amirhossein Mohajerin Ariaei; D. Rogawski; Moshe Tur; Joseph D. Touch; V. Vusirikala; W. Zhao; Alan E. Willner (OFC/NFOEC, 2013)

All-optical phase noise suppression using optical nonlinear mixing combined with tunable optical delays. - M. R. Chitgarha; Salman Khaleghi; Morteza Ziyadi; W. Daab; A. Mohajerin-Ariaei; D. Rogawski; Joseph D. Touch; Moshe Tur; Carsten Langrock; Martin M. Fejer; Alan E. Willner (OFC/NFOEC, 2013)

A tunable optical tapped-delay-line that simultaneously and independently processes multiple input WDM data signals. - Salman Khaleghi; M. R. Chitgarha; Morteza Ziyadi; W. Daab; A. Mohajerin-Ariaei; D. Rogawski; Joseph D. Touch; Moshe Tur; Carsten Langrock; Martin M. Fejer; Alan E. Willner (OFC/NFOEC, 2013)

Tunable homodyne detection using nonlinear optical signal processing to automatically lock a "local" pump laser to an incoming 20-to-40-Gbaud QPSK data signal. - M. R. Chitgarha; Yinwen Cao; A. Mohajerin-Ariaei; Morteza Ziyadi; Salman Khaleghi; Ahmed Almaiman; Joseph D. Touch; Carsten Langrock; Martin M. Fejer; Alan E. Willner (ECOC, 2014)

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)

Optical channel de-aggregator of 30-Gbaud QPSK and 20-Gbaud 8-PSK data using mapping onto constellation axes. - Morteza Ziyadi; Amirhossein Mohajerin Ariaei; Mohammad Reza Chitgarha; Yinwen Cao; Salman Khaleghi; Ahmed Almaiman; Joe Touch; Loukas Paraschis; Moshe Tur; Carsten Langrock; Martin M. Fejer; Alan E. Willner (ECOC, 2014)

Experimental demonstration of robustness and accuracy of an MZI-based OSNR monitor under transmitter drift and reconfigurable networking conditions for pol-muxed 25-Gbaud QPSK and 16-QAM channels. - Ahmed Almaiman; M. R. Chitgarha; W. Daab; Morteza Ziyadi; A. Mohajerin-Ariaei; Salman Khaleghi; Moshe Willner; V. Vusirikala; X. Zhao; Dan Kilper; Loukas Paraschis; Atiyah Ahsan; et al. (OFC, 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)

Experimental demonstration of optical Nyquist generation of 32-Gbaud QPSK using a comb-based tunable optical tapped-delay-line FIR filter. - Morteza Ziyadi; M. R. Chitgarha; A. Mohajerin-Ariaei; Salman Khaleghi; Ahmed Almaiman; M. J. Willner; Joseph D. Touch; Moshe Tur; Loukas Paraschis; Carsten Langrock; Martin M. Fejer; Alan E. Willner (OFC, 2014)

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)

2×800 Gbps/wave Coherent Optical Module Using a Monolithic InP Transceiver PIC. - Mohammad Reza Chitgarha; Pavel Studenkov; Jianping Zhang; Hossein Hodaei; Thomas Frost; Huan-Shang Tsai; Sanketh Buggaveeti; Amir Rashidinejad; Amin Yekani; Reza Mirzaei Nejad; Samantha Kerns; Júlio C. M. Diniz; et al. (ECOC, 2020)

800G over 1000 km enabled by real-time DSP ASIC employing Probabilistic Shaping and Digital Sub-Carrier Multiplexing. - Han Sun; Mehdi Torbatian; Mehdi Karimi; Robert Maher; Sandy Thomson; Mohsen Nader Tehrani; Yuliang Gao; Ales Kumpera; George Soliman; Aditya Kakkar; Mohammad Osman; Ziad A. El-Sahn; et al. (ICTON, 2020)

Real-Time 100.4 GBd PCS-64QAM Transmission of a 1.6 Tb/s Super-Channel Over 1600 km of G.654.E Fiber. - Robert Maher; Mohammad Reza Chitgarha; Irene Leung; Amir Rashidinejad; Brandon Buscaino; Zhenxing Wang; Mehdi Torbatian; Aditya Kakkar; Ziad A. El-Sahn; Mohammad Osman; Ales Kumpera; Reza Mirzaei Nejad; et al. (OFC, 2021)

Trans-Atlantic Real-Time Field Trial Using Super-Gaussian Constellation-Shaping to Enable 30Tb/s+ Capacity. - Marc F. C. Stephens; Pierre Mertz; Stephen Grubb; Gary Shartle; Ales Kumpera; James O'Connor; Robert Maher; Mohammad Reza Chitgarha; Clayton Doggart; Sandy Thomson; Sumudu Edirisinghe; Alexandre Afonso; et al. (OFC, 2021)