M
Mohammad Reza Chitgarha
Researcher at Infinera
Publications - 47
Citations - 1256
Mohammad Reza Chitgarha is an academic researcher from Infinera. The author has contributed to research in topics: Phase-shift keying & Optical performance monitoring. The author has an hindex of 14, co-authored 47 publications receiving 959 citations. Previous affiliations of Mohammad Reza Chitgarha include University of Southern California & Fujitsu.
Papers
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Journal ArticleDOI
All-Optical Signal Processing
TL;DR: This work revisits advances in the key enabling technologies that led to recent research in optical signal processing for digital signals that are encoded in one or more of these dimensions.
Journal ArticleDOI
800G DSP ASIC Design Using 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,Clayton Doggart,Weikun Hou,Shailesh Sutarwala,Yuejian Wu,Mohammad Reza Chitgarha,Vikrant Lal,Huan-Shang Tsai,Scott Corzine,Jiaming Zhang,J. Osenbach,S. Buggaveeti,Zulfikar Morbi,Miguel Iglesias Olmedo,I. Leung,Xian Xu,Parmijit Samra,Vince Dominic,Steve Sanders,Mehrdad Ziari,Antonio Napoli,Bernhard Spinnler,Kuang-Tsan Wu,Parthiban Kandappan +34 more
TL;DR: This manuscript discusses the motivations for jointly utilizing transmission techniques such as probabilistic shaping and digital sub-carrier multiplexing in digital coherent optical transmissions systems and describes the key-building blocks of modern high-speed DSP-based transponders working at up to 800G per wave.
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System-on-Chip Photonic Integrated Circuits
Fred A. Kish,Vikrant Lal,Peter W. Evans,Scott Corzine,Mehrdad Ziari,Tim Butrie,M. Reffle,Huan-Shang Tsai,Andrew Dentai,Jacco Pleumeekers,Mark J. Missey,M. Fisher,S. Murthy,Randal A. Salvatore,Parmijit Samra,Scott Demars,Naksup Kim,Adam James,Amir Hosseini,P. Studenkov,Matthias Lauermann,Ryan Going,Mingzhi Lu,Jiaming Zhang,Jie Tang,Jeff Bostak,Thomas Vallaitis,Matthias Kuntz,Don Pavinski,A. Karanicolas,B. Behnia,Darrell Engel,O. Khayam,Nikhil Modi,Mohammad Reza Chitgarha,Pierre Mertz,Wilson Ko,Robert Maher,J. Osenbach,Jeffrey T. Rahn,Han Sun,Kuang-Tsan Wu,Matthew L. Mitchell,David F. Welch +43 more
TL;DR: Key advances which enabled the InP photonic integrated circuit (PIC) and the subsequent progression of InP PICs to fully integrated multichannel DWDM system-on-chip (SOC) PIC’s are described.
Journal ArticleDOI
Long-Wavelength VCSEL Using High-Contrast Grating
Yi Rao,Weijian Yang,Christopher Chase,Michael Chung-Yi Huang,D.P. Worland,Salman Khaleghi,Mohammad Reza Chitgarha,Morteza Ziyadi,Alan E. Willner,Connie J. Chang-Hasnain +9 more
TL;DR: In this paper, a high-contrast grating (HCG) vertical-cavity surface-emitting laser (VCSEL) was used as a source for external modulation for 40-Gbps differential-phase-shift-keyed signal with negligible power penalty.
Journal ArticleDOI
SBS-Based Fiber Optical Sensing Using Frequency-Domain Simultaneous Tone Interrogation
Asher Voskoboinik,Jian Wang,Bishara Shamee,Scott R. Nuccio,Lin Zhang,Mohammad Reza Chitgarha,Alan E. Willner,Moshe Tur +7 more
TL;DR: In this article, a frequency-sweep-free method for stimulated Brillouin scattering (SBS)-based sensing is proposed, which has the potential for fast acquisition characteristics.