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ORCIDSethumadhavan Chandrasekhar
S. Chandrasekhar 0001
Person information
- affiliation: Nokia Bell Labs, Holmdel, NJ, USA
- affiliation (PhD 1985): University of Bombay, India
Other persons with the same name
- S. Chandrasekhar 0002 — Rashtreeya Vidyalaya College of Engineering, Bangalore, India
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2020 – today
- 2020
[j9]Thierry Zami, Bruno Lavigne, Ivan Fernandez de Jauregui Ruiz, Marco Bertolini, Yuan-Hua Claire Kao, Oriol Bertran-Pardo, Mathieu Lefrançois, Florian Pulka, Sethumadhavan Chandrasekhar, Junho Cho
, Xi Chen, Di Che, Ellsworth Burrows, Peter Winzer, Jelena Pesic, Nicola Rossi:
Simple self-optimization of WDM networks based on probabilistic constellation shaping [Invited]. JOCN 12(1): A82-A94 (2020)- [c53]Junho Cho, Gregory Raybon, Ellsworth Burrows, Jean-Christophe Antona, Nicolas K. Fontaine, Roland Ryf, Haoshuo Chen, Sethumadhavan Chandrasekhar, Erixhen Sula, Samuel Olsson, Steve Grubb, Peter J. Winzer:
Optimizing Gain Shaping Filters with Neural Networks for Maximum Cable Capacity under Electrical Power Constraints. ECOC 2020: 1-4 - [c52]Di Che, Yasuhiro Matsui, Richard Schatz, Roberto Rodes, Ferdous Khan, Martin Kwakernaak, Tsurugi Sudo, S. Chandrasekhar, Junho Cho, Xi Chen, Peter J. Winzer:
Direct Modulation of a 54-GHz Distributed Bragg Reflector Laser with 100-GBaud PAM-4 and 80-GBaud PAM-8. OFC 2020: 1-3 - [c51]Junho Cho, Sethumadhavan Chandrasekhar, Erixhen Sula, Samuel Olsson, Ellsworth Burrows, Gregory Raybon, Roland Ryf, Nicolas K. Fontaine, Jean-Christophe Antona, Steve Grubb, Peter J. Winzer, Andrew R. Chraplyvy:
Maximizing Fiber Cable Capacity under a Supply Power Constraint using Deep Neural Networks. OFC 2020: 1-3 - [c50]Joan M. Gené, Xi Chen, Junho Cho, Sethumadhavan Chandrasekhar, Peter J. Winzer:
Experimental Demonstration of Widely Tunable Rate/Reach Adaptation from 80 km to 12, 000 km using Probabilistic Constellation Shaping. OFC 2020: 1-3
2010 – 2019
- 2019
- [c49]Di Che, S. Chandrasekhar, Xi Chen, Gregory Raybon, Peter J. Winzer, Chuanbowen Sun, William Shieh:
Single-Channel Direct Detection Reception Beyond 1 Tb/s. OFC 2019: 1-3 - [c48]Xi Chen, Sethumadhavan Chandrasekhar, Junho Cho, Peter Winzer:
Single-Wavelength and Single-Photodiode Entropy-Loaded 554-Gb/s Transmission Over 22-km SMF. OFC 2019: 1-3 - [i1]Junho Cho, Sethumadhavan Chandrasekhar, Erixhen Sula, Samuel Olsson, Ellsworth Burrows, Gregory Raybon, Roland Ryf, Nicolas K. Fontaine, Jean-Christophe Antona, Steve Grubb, Peter J. Winzer, Andrew R. Chraplyvy:
Supply-Power-Constrained Cable Capacity Maximization Using Deep Neural Networks. CoRR abs/1910.02050 (2019) - 2018
- [c47]Xi Chen, S. Chandrasekhar, Samuel Olsson, Andrew Adamiecki, Peter J. Winzer:
Impact of O/E Front-End Frequency Response on Kramers-Kronig Receivers and its Compensation. ECOC 2018: 1-3 - [c46]Xi Chen, S. Chandrasekhar, Peter J. Winzer:
Self-Coherent Systems for Short Reach Transmission. ECOC 2018: 1-3 - [c45]Junho Cho, Samuel L. I. Olsson, Sethumadhavan Chandrasekhar, Peter J. Winzer:
Information Rate of Probabilistically Shaped QAM with Non-Ideal Forward Error Correction. ECOC 2018: 1-3 - [c44]Xi Chen, Sethumadhavan Chandrasekhar, Gregory Raybon, Samuel Olsson, Junho Cho, Andrew Adamiecki, Peter J. Winzer:
Generation and Intradyne Detection of Single-Wavelength 1.61-Tb/s Using an All-Electronic Digital Band Interleaved Transmitter. OFC 2018: 1-3 - [c43]Xi Chen, Sethumadhavan Chandrasekhar, Peter Winzer:
Frequency-Resolved Measurements of Signal, Noise, and Signal-Signal Beat Interference in Self-Coherent Direct-Detection Receivers. OFC 2018: 1-3 - [c42]Antonio Mecozzi, Cristian Antonelli, Mark Shtaif, Xi Chen, S. Chandrasekhar, Peter J. Winzer:
The Kramers-Kronig Receiver. OFC 2018: 1-3 - [c41]Samuel L. I. Olsson, Junho Cho, Sethumadhavan Chandrasekhar, Xi Chen, Ellsworth C. Burrows, Peter J. Winzer:
Record-High 17.3-bit/s/Hz Spectral Efficiency Transmission over 50 km Using Probabilistically Shaped PDM 4096-QAM. OFC 2018: 1-3 - [c40]Gregory Raybon, Andrew Adamiecki, Junho Cho, Filipe Jorge, Agnieszka Konczykowska, Muriel Riet, Bernadette Duval, Jean-Yves Dupuy, Nicolas K. Fontaine, Peter J. Winzer, Sethumadhavan Chandrasekhar, Xi Chen:
180-GBaud All-ETDM Single-Carrier Polarization Multiplexed QPSK Transmission over 4480 km. OFC 2018: 1-3 - [c39]Mian Zhang, Cheng Wang, Xi Chen, Maxime Bertrand, Amirhassan Shams-Ansari, Sethumadhavan Chandrasekhar, Peter Winzer, Marko Loncar:
Ultra-High Bandwidth Integrated Lithium Niobate Modulators with Record-Low Vπ. OFC 2018: 1-3 - 2017
- [c38]Xi Chen, Cristian Antonelli, S. Chandrasekhar, Gregory Raybon, Antonio Mecozzi, Mark Shtaif, Peter J. Winzer:
4 × 240 Gb/s Dense WDM and PDM Kramers-Kronig Detection with 125-km SSMF Transmission. ECOC 2017: 1-3 - [c37]Haoshuo Chen, Nicolas K. Fontaine, Roland Ryf, Sethumadhavan Chandrasekhar, Bin Huang, Peter J. Winzer:
Beam-Forming Transmission Enabled by Transmitter-Side MIMO Using Spatial Pilots. ECOC 2017: 1-3 - [c36]Junho Cho, S. Chandrasekhar, Xi Chen, Gregory Raybon, Peter J. Winzer:
High Spectral Efficiency Transmission with Probabilistic Shaping. ECOC 2017: 1-3 - [c35]Xi Chen, Cristian Antonelli, S. Chandrasekhar, Gregory Raybon, Jeffrey H. Sinsky, Antonio Mecozzi, Mark Shtaif, Peter J. Winzer:
218-Gb/s single-wavelength, single-polarization, single-photodiode transmission over 125-km of standard singlemode fiber using Kramers-Kronig detection. OFC 2017: 1-3 - [c34]Xi Chen, S. Chandrasekhar, P. Pupalaikis, Peter J. Winzer:
Fast DAC solutions for future high symbol rate systems. OFC 2017: 1-3 - [c33]Xi Chen, S. Chandrasekhar, Gregory Raybon, Po Dong, Borui Li, Andrew Adamiecki, Peter Winzer:
Characterization of electro-optic bandwidth of ultra-high speed modulators. OFC 2017: 1-3 - [c32]Junho Cho, Xi Chen, S. Chandrasekhar, Gregory Raybon, Ronen Dar, Laurent Schmalen, Ellsworth C. Burrows, Andrew Adamiecki, Stephen Corteselli, Yin Pan, Diego Correa, Bradley McKay, Zsigmond Szilárd, Peter J. Winzer, Steve Grubb:
Trans-Atlantic field trial using probabilistically shaped 64-QAM at high spectral efficiencies and single-carrier real-time 250-Gb/s 16-QAM. OFC 2017: 1-3 - [c31]Guilhem de Valicourt, Chia-Ming Chang, S. Chandrasekhar, Young-Kai Chen, Anaelle Maho, R. Brenot, Po Dong:
Integrated 5-channel WDM hybrid III-V/Si transmitter enabling 100Gb/s and beyond. OFC 2017: 1-3 - [c30]Guilhem de Valicourt, Chia-Ming Chang, Michael S. Eggleston, Argishti Melikyan, C. Zhu, J. Lee, Jesse E. Simsarian, S. Chandrasekhar, Jeffrey H. Sinsky, Kwangwoong Kim, Anaelle Maho, R. Brenot, Po Dong, Young-Kai Chen:
Hybrid III-V/Silicon integration: Enabling the next generation of advanced photonic transmitters. OFC 2017: 1-3 - 2016
- [c29]Xi Chen, Sethumadhavan Chandrasekhar, Sebastian Randel, Wenjun Gu, Peter Winzer:
Experimental quantification of implementation penalties from limited ADC resolution for Nyquist shaped higher-order QAM. OFC 2016: 1-3 - [c28]Xi Chen, S. Chandrasekhar, Sebastian Randel, Gregory Raybon, Andrew Adamiecki, P. Pupalaikis, Peter Winzer:
All-electronic 100-GHz bandwidth digital-to-analog converter generating PAM signals up to 190-GBaud. OFC 2016: 1-3 - [c27]Hao Hu, Robert M. Jopson, Alan H. Gnauck, Dario Pilori, Sebastian Randel, S. Chandrasekhar:
Fiber nonlinearity compensation by repeated phase conjugation in 2.048-Tbit/s WDM transmission of PDM 16-QAM channels. OFC 2016: 1-3 - [c26]Guilhem de Valicourt, S. Chandrasekhar, Sebastian Randel, Young-Kai Chen, M. A. Mestre, Yvan Pointurier, Sébastien Bigo, Jean-Marc Fedeli, Laurent Bramerie, Jean-Claude Simon, Laurent Vivien, Alexandre Shen, Guang-Hua Duan:
16-Channel 100 GHz-spaced integrated polarization diversity silicon-based slot-blocker for high data rate reconfigurable networks. OFC 2016: 1-3 - 2015
- [j8]Roland Ryf, S. Chandrasekhar, Sebastian Randel, David T. Neilson, Nicolas K. Fontaine, Mark D. Feuer:
Physical layer transmission and switching solutions in support of spectrally and spatially flexible optical networks. IEEE Commun. Mag. 53(2): 52-59 (2015) - [c25]Sebastian Randel, Dario Pilori, Sethumadhavan Chandrasekhar, Gregory Raybon, Peter J. Winzer:
100-Gb/s discrete-multitone transmission over 80-km SSMF using single-sideband modulation with novel interference-cancellation scheme. ECOC 2015: 1-3 - [c24]Guilhem de Valicourt, Sethumadhavan Chandrasekhar, Jeffrey H. Sinsky, Chia-Ming Chang, Young-Kai Chen, M. A. Mestre, Yvan Pointurier, Sébastien Bigo, Jean-Marc Fedeli, Laurent Bramerie, Jean-Claude Simon, Laurent Vivien, Alexandre Shen, Alban Le Liepvre, Guang-Hua Duan:
Monolithic integrated reflective polarization diversity SOI-based slot-blocker for fast reconfigurable 128 Gb/s and 256 Gb/s optical networks. ECOC 2015: 1-3 - [c23]Po Dong, Jeffrey Lee, Young-Kai Chen, Lawrence L. Buhl, S. Chandrasekhar, Jeffrey H. Sinsky, Kwangwoong Kim:
Four-channel 100-Gb/s per channel discrete multi-tone modulation using silicon photonic integrated circuits. OFC 2015: 1-3 - [c22]C. Lin, S. Chandrasekhar, Peter J. Winzer:
Experimental study of the limits of digital nonlinearity compensation in DWDM systems. OFC 2015: 1-3 - 2014
- [j7]Xiang Liu, Sethumadhavan Chandrasekhar, Peter J. Winzer:
Digital Signal Processing Techniques Enabling Multi-Tb/s Superchannel Transmission: An overview of recent advances in DSP-enabled superchannels. IEEE Signal Process. Mag. 31(2): 16-24 (2014) - [c21]Hao Hu, Robert M. Jopson, Alan H. Gnauck, Mihaela Dinu, Sethumadhavan Chandrasekhar, Xiang Liu, Chongjin Xie, M. Montoliu, Sebastian Randel, Colin J. McKinstrie:
Parametric amplification and wavelength conversion of a 2.048-Tbit/s WDM PDM 16-QAM signal. ECOC 2014: 1-3 - [c20]Noriaki Kaneda, Timo Pfau, Huan Zhang, Jeffrey Lee, Young-Kai Chen, Chun Ju Youn, Yong Hwan Kwon, Eun Soo Num, S. Chandrasekhar:
Field demonstration of 100-Gb/s real-time coherent optical OFDM detection. ECOC 2014: 1-3 - [c19]Roland Ryf, Nicolas K. Fontaine, Binbin Guan, René-Jean Essiambre, Sebastian Randel, Alan H. Gnauck, Sethumadhavan Chandrasekhar, Andrew Adamiecki, Gregory Raybon, Burcu Ercan, Ryan P. Scott, S. J. Ben Yoo, Tetsuya Hayashi, Takuji Nagashima, Takashi Sasaki:
1705-km transmission over coupled-core fibre supporting 6 spatial modes. ECOC 2014: 1-3 - [c18]Roland Ryf, Nicolas K. Fontaine, Binbin Guan, Bin Huang, Mina Esmaeelpour, Sebastian Randel, Alan H. Gnauck, Sethumadhavan Chandrasekhar, Andrew Adamiecki, Gregory Raybon, Robert W. Tkach, Roman Shubochkin, Yan Sun, Robert Lingle:
305-km combined wavelength and mode-multiplexed transmission over conventional graded-index multimode fibre. ECOC 2014: 1-3 - [c17]S. Chandrasekhar, Xiang Liu, Peter J. Winzer, T. Lotz, Chun Ju Youn, Y. H. Kwon, E. S. Nam:
Field demonstration of 3×341-Gb/s PDM-OFDM-256 iterative polar modulation signals with a record 11.0-b/s/Hz intrachannel spectral efficiency. OFC 2014: 1-3 - [c16]Hao Hu, Robert M. Jopson, Alan H. Gnauck, Mihaela Dinu, S. Chandrasekhar, Xiang Liu, Chongjin Xie, M. Montoliu, Sebastian Randel, Colin J. McKinstrie:
Fiber nonlinearity compensation of an 8-channel WDM PDM-QPSK signal using multiple phase conjugations. OFC 2014: 1-3 - [c15]Xiang Liu, S. Chandrasekhar:
Superchannel for next-generation optical networks. OFC 2014: 1-33 - [c14]Xiang Liu, S. Chandrasekhar, Peter J. Winzer, Benoit Maheux-L, Guillaume Brochu, François Trépanier:
Efficient fiber nonlinearity mitigation in 50-GHz-DWDM transmission of 256-Gb/s PDM-16QAM signals by folded digital-back-propagation and channelized FBG-DCMs. OFC 2014: 1-3 - [c13]Sebastian Randel, Stephen Corteselli, Peter J. Winzer, Andrew Adamiecki, Alan H. Gnauck, S. Chandrasekhar, Anna Bielik, Lars Altenhain, Tobias Ellermeyer, Ulrich Dumler, Henning Langenhagen, Rolf Schmid:
Generation of a digitally shaped 55-GBd 64-QAM single-carrier signal using novel high-speed DACs. OFC 2014: 1-3 - [c12]Sebastian Randel, Dario Pilori, Stephen Corteselli, Gregory Raybon, Andrew Adamiecki, Alan H. Gnauck, S. Chandrasekhar, Peter Winzer, Lars Altenhain, Anna Bielik, Rolf Schmid:
All-electronic flexibly programmable 864-Gb/s single-carrier PDM-64-QAM. OFC 2014: 1-3 - [c11]Roland Ryf, Nicolas K. Fontaine, M. Montoliu, Sebastian Randel, S. H. Chang, Haoshuo Chen, S. Chandrasekhar, Alan H. Gnauck, René-Jean Essiambre, Peter J. Winzer, Toshiki Taru, Tetsuya Hayashi, T. Sasaki:
Space-division multiplexed transmission over 3×3 coupled-core multicore fiber. OFC 2014: 1-3 - [c10]Roland Ryf, Nicolas K. Fontaine, M. Montoliu, Sebastian Randel, Burcu Ercan, Haoshuo Chen, S. Chandrasekhar, Alan H. Gnauck, Sergio G. Leon-Saval, Joss Bland-Hawthorn, J. R. Salazar-Gil, Yan Sun, Robert Lingle:
Photonic-lantern-based mode multiplexers for few-mode-fiber transmission. OFC 2014: 1-3 - [c9]Cen Xia, Xiang Liu, S. Chandrasekhar, Nicolas K. Fontaine, Likai Zhu, Gen Li:
Multi-channel nonlinearity compensation of 128-Gb/s PDM-QPSK signals in dispersion-managed transmission using dispersion-folded digital backward propagation. OFC 2014: 1-3 - 2013
- [c8]Sethumadhavan Chandrasekhar, Xiang Liu, Peter J. Winzer, Jesse E. Simsarian, R. A. Griffin:
Small-form-factor all-InP integrated laser vector modulator enables the generation and transmission of 256-Gb/s PDM-16QAM Modulation Format. OFC/NFOEC 2013: 1-3 - [c7]Po Dong, Xiang Liu, Sethumadhavan Chandrasekhar, Lawrence L. Buhl, Ricardo Aroca, Yves Baeyens, Young-Kai Chen:
224-Gb/s PDM-16-QAM modulator and receiver based on silicon photonic integrated circuits. OFC/NFOEC 2013: 1-3 - [c6]Johnny Karout, Xiang Liu, Sethumadhavan Chandrasekhar, Erik Agrell, Magnus Karlsson, René-Jean Essiambre:
Experimental demonstration of an optimized 16-ary four-dimensional modulation format using optical OFDM. OFC/NFOEC 2013: 1-3 - [c5]Xiang Liu, S. Chandrasekhar, Peter J. Winzer, Robert W. Tkach, Andrew R. Chraplyvy:
406.6-Gb/s PDM-BPSK superchannel transmission over 12, 800-km TWRS fiber via nonlinear noise squeezing. OFC/NFOEC 2013: 1-3 - [c4]Xiang Liu, Peter J. Winzer, S. Chandrasekhar, Sebastian Randel, Stephen Corteselli:
Multiband DFT-spread-OFDM equalizer with overlapand-add dispersion compensation for low-overhead and low-complexity channel equalization. OFC/NFOEC 2013: 1-3 - [c3]Gregory Raybon, Andrew Adamiecki, Peter J. Winzer, Chongjin Xie, Agnieszka Konczykowska, Filipe Jorge, Jean-Yves Dupuy, Lawrence L. Buhl, Sethumadhavan Chandrasekhar, S. Draving, M. Grove, K. Rush:
Single-carrier 400G interface and 10-channel WDM transmission over 4, 800 km using all-ETDM 107-Gbaud PDM-QPSK. OFC/NFOEC 2013: 1-4 - [c2]Roland Ryf, Sebastian Randel, Nicolas K. Fontaine, M. Montoliu, Ellsworth Burrows, Stephen Corteselli, Sethumadhavan Chandrasekhar, Alan H. Gnauck, Chongjin Xie, René-Jean Essiambre, Peter J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Yi Sun, Lars Grüner-Nielsen, Rasmus Vincentz Jensen, Robert Lingle:
32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber. OFC/NFOEC 2013: 1-3 - [c1]Thomas H. Wood, Xiang Liu, S. Chandrasekhar, Robert W. Tkach:
Advanced modulation formats for free-space laser communication. OFC/NFOEC 2013: 1-3 - 2010
- [j6]Sethumadhavan Chandrasekhar, Xiang Liu:
40 Gb/s DBPSK and DQPSK formats for transparent 50 GHz DWDM transmission. Bell Labs Tech. J. 14(4): 11-25 (2010) - [j5]Xiang Liu, Fred Buchali, Robert W. Tkach, Sethumadhavan Chandrasekhar:
Mitigation of fiber nonlinear impairments in polarization division multiplexed OFDM transmission. Bell Labs Tech. J. 14(4): 47-59 (2010) - [j4]Daniel C. Kilper, Sethumadhavan Chandrasekhar, Christopher A. White, Bruno Lavigne:
Channel power transients in erbium doped fiber amplified reconfigurable transmission systems. Bell Labs Tech. J. 14(4): 73-84 (2010) - [j3]Chongjin Xie, Dieter Werner, Herbert Haunstein, Robert M. Jopson, Sethumadhavan Chandrasekhar, Xiang Liu, Yan Shi, Siegfried Gronbach, Thomas Link, Konrad Czotscher:
Optical polarization mode dispersion compensators for high-speed optical communication systems. Bell Labs Tech. J. 14(4): 115-129 (2010)
2000 – 2009
- 2006
- [j2]Xiang Liu, Douglas M. Gill, Sethumadhavan Chandrasekhar:
Optical technologies and techniques for high bit rate fiber transmission. Bell Labs Tech. J. 11(2): 83-104 (2006) - 2001
- [j1]Helen H. Kim, S. Chandrasekhar, Charles A. Burrus, Jon Bauman:
A Si BiCMOS transimpedance amplifier for 10-Gb/s SONET receiver. IEEE J. Solid State Circuits 36(5): 769-776 (2001)
Coauthor Index
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