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Shankar Kumar Selvaraja

Research Interests

  • Silicon Photonic Integrated circuit
  • Photonics assisted exascale computing
  • Microwave Photonics
  • Mid-IR photonics for sensing application
  • Visible-to-Mid-IR photonic circuit platform

Publications

  • Purnima Sethi, Rakshitha Kallege, Anubhab Haldar, Shankar Kumar Selvaraja, “Compact Broadband Low-Loss Taper for Coupling to a Silicon Nitride Photonic Wire”, arXiv preprint arXiv:1711.09831, (2017).
  • Viphretuo Mere, Rakshitha Kallega, Shankar Kumar Selvaraja, “Efficient and Tunable Strip-to-Slot Fundamental Mode Coupling”, arXiv preprint arXiv:1711.09819, (2017).
  • Awanish Pandey, Shankar Kumar Selvaraja, “All-optical wavelength multicasting in quadruple resonance-split coupled Silicon microring cavity”, arXiv preprint arXiv:1711.09820, (2017).
  • Awanish Pandey, Shankar Kumar Selvaraja, “Tunable coupling-induced resonance splitting in self-coupled Silicon ring cavity with robust spectral characteristics”, arXiv preprint arXiv:1706.03810, (2017).
  • Purnima Sethi, Anubhab Haldar, Shankar Kumar Selvaraja, “Ultra-compact low-loss , broadband waveguide taper in silicon-on-insulator”, arXiv preprint arXiv:1705.01698, (2017).
  • Siddharth R Nambiar, Shankar Kumar Selvaraja, “Design and Fabrication of Subwavelength grating couplers for efficient Off chip fiber coupling”, International Conference on Fibre Optics and Photonics, (2016).
  • Viphretuo Mere, Shankar Kumar Selvaraja,” Germanium-on-Glass waveguides for Mid-IR photonics”, International Conference on Fibre Optics and Photonics, (2016).
  • Vadivukkarasi Jeyaselvan, Shankar Kumar Selvaraja, “Lateral Diffusion Length measurement of the dopants in Silicon using micro ring resonator”, International Conference on Fibre Optics and Photonics, (2016).
  • John Sundar Kamal, Siddharth R Nambiar, Shankar Kumar Selvaraja, “Near Field Study of Integrated Silicon Photonics Platform Based Passive Optical Components”, International Conference on Fibre Optics and Photonics, (2016).
  • Shankar Kumar Selvaraja, Marc Schaekers, Wim Bogaerts, Dries Van Thourhout, “Deposited amorphous silicon-on-insulator technology for nano-photonic integrated circuits”, Optics Communications, (2014).
  • Shankar Kumar Selvaraja, Gustaf Winroth, Sabrina Locorotondo, Gayle Murdoch, Alexey Milenin, Christie Delvaux, Patrick Ong, Shibnath Pathak, Weiqiang Xie, Gunther Sterckx, Guy Lepage, Dries Van Thourhout, Wim Bogaerts, Joris Van Campenhout, Philippe Absil, “193nm immersion lithography for high performance silicon photonic circuits”, Proc. of SPIE Vol, (2014).
  • Shankar Kumar Selvaraja, Wim Bogaerts, Dries Van Thourhout, “Loss reduction in silicon nanophotonic waveguide micro-bends through etch profile improvement”, Optics Communications, (2011).
  • Shankar Kumar Selvaraja, Wim Bogaerts, Dries VanThourhout, Marc Schaekers, “Thermal trimming and tuning of hydrogenated amorphous silicon nanophotonic devices”, Applied Physics Letters, (2010).
  • Shankar Kumar Selvaraja, Wim Bogaerts, Pieter Dumon, Dries Van Thourhout, Roel Baets, “Subnanometer linewidth uniformity in silicon nanophotonic waveguide devices using CMOS fabrication technology”, IEEE Journal of Selected Topics in Quantum Electronics, (2010).
  • Shankar Kumar Selvaraja, Wim Bogaerts, Philippe Absil, Dries Van Thourhout, Roel Baets, “Record low-loss hybrid rib/wire waveguides for silicon photonic circuits”, Group IV Photonics, (2010).
  • Shankar Kumar Selvaraja, Patrick Jaenen, Wim Bogaerts, Dries Van Thourhout, Pieter Dumon, Roel Baets, “Fabrication of photonic wire and crystal circuits in silicon-on-insulator using 193-nm optical lithography”, Journal of Lightwave Technology, (2009).
  • Shankar Kumar Selvaraja, Erik Sleeckx, Marc Schaekers, Wim Bogaerts, Dries Van Thourhout, Pieter Dumon, Roel Baets, “Low-loss amorphous silicon-on-insulator technology for photonic integrated circuitry”, Optics Communications, (2009).

Patents

  • P.Absil and S. Selvaraja, Methods for improving integrated photonic device uniformity, US Patent 20,130,023,067, EP Patent 2,549,224.
  • S. Selvaraja, A method of coupling light into a photonic integrated circuit, EP application pending.

Conference and Seminars

  • S. Selvaraja, P. De Heyn, G. Winroth, P. Ong, G. Lepage, C. Cailler, A. Rigny, K. Bourdelle, W. Bogaerts@ugent.be, D. VanThourhout, J. Van Campenhout, and P. Absil, “Highly uniform and low-loss passive silicon photonics devices using a 300mm CMOS platform,” in Optical Fiber Communication Conference, OSA Technical Digest (online) (Optical Society of America, 2014), paper Th2A.33.
  • S. Selvaraja, Luis Fernandez, M. Vanslembrouck, Jean-Luc Everaert, P. Dumon, J. Van Campenhout, W. Bogaerts, Philippe Absil, Si photonic device uniformity improvement using wafer-scale location specific processing,IEEE Photonics Conference 2012 (IPC), United States, p.725-726 (2012).
  • S. Selvaraja, Gayle Murdoch, Alexey Milenin , Christie Delvaux, Patrick Ong, S. Pathak, D. Vermeulen, Gunther Sterckx, Gustaf Winroth, Peter Verheyen, Guy Lepage, R. Baets, W. Bogaerts, J. Van Campenhout, Philippe Absil, Advanced 300-mm Waferscale Patterning for Silicon Photonics Devices with Record Low Loss and Phase Errors,17th OptoElectronics and Communications Conference (OECC 2012), South Korea, p.PDP2-2 p15 (2012).
  • S. Selvaraja, E.Rosseel, L.Fernandez, Martin Tabat, W. Bogaerts, J. Hautala, P. Absil, SOI thickness uniformity improvement using wafer-scale corrective etching for silicon nano-photonic device,16th Annual Symposium of the IEEE Photonics Benelux Chapter, Belgium, p.289-292 (2011) .
  • S. Selvaraja, E.Rosseel, L.Fernandez, Martin Tabat, W. Bogaerts, J. Hautala, P. Absil, SOI Thickness Uniformity Improvement using Corrective Etching for Silicon Nano-Photonic Device, 8th International Conference on Group IV Photonics, United Kingdom, p.71-73 (2011) .
  • S. Selvaraja, W. Bogaerts, P. Absil, D. Van Thourhout, R. Baets, Record Low-Loss Hybrid Rib/Wire Waveguides for Silicon Photonic Circuits ,Group IV Photonics 2010 (PD), China, (2010).
  • S. Selvaraja, P. Dumon, W. Bogaerts, D. Van Thourhout, R. Baets, Amorphous silicon: Material for Photonic-Photonic and Electronic-Photonic Integration, 14th Annual Symposium of the IEEE Photonics Benelux Chapter, Belgium, p.137-140 (2009) .
  • S. Selvaraja, K. De Vos, W. Bogaerts, P. Bienstman, D. Van Thourhout, R. Baets, Effect of Device Density on the Uniformity of Silicon Nano-Photonic Waveguide Devices,The 22nd Annual Meeting of the IEEE Photonics Society, Turkey, p.311-312 (2009)
  • S. Selvaraja, D. Vermeulen, Marc Schaekers, Erik Sleeckx, W. Bogaerts, G. Roelkens, P. Dumon, D. Van Thourhout, R. Baets, Highly Efficient Grating Coupler between Optical Fiber and Silicon Photonic Circuit,Conference on Lasers and Electro-Optics (CLEO) 2009 , United States, p.CTuC6 (2009).
  • S. Selvaraja, W. Bogaerts, P. Dumon, D. Van Thourhout, R. Baets, Amorphous silicon photonic crystals made with 193nm lithography,The 8th International Photonic & Electromagnetic Crystal Structures Meeting (PECS), Australia, (2009).
  • S. Selvaraja, P. Dumon, W. Bogaerts, D. Van Thourhout, R. Baets, Erik Sleeckx, Marc Schaekers, Demonstration Of Optical Via And Low-Loss Optical Crossing For Vertical Integration Of Silicon Photonic Circuit,PHOTONICS 2008:The International Conference on Fiber Optics and Photonics, India, (2008).
  • S. Selvaraja, E.Sleeckx, W. Bogaerts, M. Schaekers, P. Dumon, D. Van Thourhout, R. Baets, Low loss amorphous silicon photonic wire and ring resonator fabricated by CMOS process,33rd European conference on Optical communication (ECOC) , Germany, p.PD 2.2 (2007) .