Department of Physics,Indian Institue of Technology Roorkee
Rajesh Kumar
Rajesh Kumar Assistant professor rajesh.kumar@ph.iitr.ac.in
Areas of Interest
  • Semiconductor Photonics, Phase Change Photonic Materials and Devices, Nanophotonics, Theory & Design, Fabrication, Measurements, Optoelectronics, Electro-Optic Switches, Lasers,Photodetectors, Resonant Switching Devices, Reconfigurable Silicon Photonics, Devices and Subsystems, Designs and Masurements, Optical Interconnects, Optical Logic, THz Photonics, III-V and III-V on Silicon based THz Photonics, Optical Signal Processing(Experimental), Wavelength Conversion, Format Conversion,Multiplexing and Demultiplexing , CMOS Photonics, Grating Couplers, Modulators, Filters, Photo-diodes and Photo-transistors, Nano-and-Micro-Photonics, Optical Memories, Optical Waveguides, Resonators, Filters
Professional Background
FromToPositionOrganisation
2008-01-012012-01-01Research EngineerIMEC(Belgium)
2012-01-012013-01-01Research FellowORC, Southampton University, UK
2013-01-012015-01-01Research AssociateUniversity of Colorado Boulder, USA
2015-01-012015-01-01Visiting FacultyIIIT Allahabad
2015-01-01OngoingAssistant ProfessorIIT Roorkee
Multiple Posts
FromToPositionOrganisation
2016-01-01OngoingOfficer-in-Charge: Electronics LabIIT Roorkee
2016-01-012016-01-01Member: M.Tech. Programme Review CommitteIIT Roorkee
2016-01-012016-01-01Member: B.Tech. Programme Review CommitteIIT Roorkee
2016-01-012017-01-01Co-ordinator: Cognizance/ThomsoIIT Roorkee
2016-01-012018-01-01Member: DRCIIT Roorkee
2016-01-012018-01-01Officer-in-Charge: Microprocessor LabIIT Roorkee
2017-01-01OngoingConvenor-Department Faculty Search CommitteeIIT Roorkee
2018-01-01OngoingDeputy O.C. M.Tech.(Photonics)IIT Roorkee
2017-01-01OngoingMember- Department Safety Committee IIT Roorkee
2017-01-01OngoingDFC Secretary IIT Roorkee
2019-01-01OngoingMemeber, DAPCIIT Roorkee
Honors and Awards
AwardInstituteYear
Research Associate Faculty FellowshipUniversity of Colorado Boulder2013
Postdoctoral FellowshipORC, University of Southampton2012
Best Paper AwardICOCN, Zhuhai, China2018
Educational Details
DegreeSubjectUniversityYear
Ph.D.Photonics EngineeringGhent University-IMEC (Belgium)2012
M.Tech.Optoelectronics and Optical CommunicationIIT Delhi2008
M.Sc.PhysicsIIT Delhi2006
Sponsored Research Projects
TopicFunding AgencyStart DatePeriod
Design and Experimental Exploration on Phase Change All-Photonic Memory(DEEPAM)SERB-DST, India2017-013 years 8 months
Enabling Photonics Platform for Memories With a Phase Change Material FIG-SRIC-IITR2016-014 years 8 months
Infrastructural Grant for Chip-to-Chip Communication: RF and Optical on Same PlatformSMILE Grant IITR2017-013 years 8 months
Energy-efficient Reconfigurable Si Photonic integrated Devices & Circuits for Optical Interconnect DST, India - BRICS STI Framework2020-018 months
Memberships
  • OSA, Member
  • IEEE Photonics Society, Member
  • IAPT, Member
  • Photonics-2018 Technical Programme Committee, Member
  • Optical Society of India, Life Fellow
Teaching Engagements
TitleCourse CodeClass NameSemester
Analog and Digital electronicsPHN-102B.Tech. (Engineering Physics)Spring
Engineering Analysis and DesignPHN-205 B.Tech. (Engineering Physics)Autumn
Electronics LabPH-302Integrated M.Sc.(Physics)Spring
OptoelectronicsPHN-712M.Tech. (SSEM)Spring
Optical Communication SystemsPHN-731M.Tech.(Photonics)Spring
Semiconductor PhotonicsPHN-637Department ElectiveAutumn
Laboratory Work in PhotonicsPHN-711M.Tech.(Photonics)Autumn
Projects and Thesis Supervised
Title of ProjectNames of Students
GST coated SOI Optical WaveguidesShubham Singh
Electrical Simulations of GST Based memoryMunendra Pal
Phase Change -SOI Strip Waveguide Photonic SwitchesAditi Sharma
Heterogeneously Integrated Microdisks for All-Optical Gating and IsolationPragati Kumar
Interfacing Components for Photonic Integrated CircuirsMs. Shivani Singh
Silicon Micro-ring Resonators for Neuromorphic ComputingSanket Shekhar
Design and Characterization of Vivaldi End-Fire Antenna for THz Photoconductive SourcesFaraz Abdullah,
PHDs Supervised
TopicScholar NameStatus of PHDRegistration Date
Electro-optic Switches Using Phase Change Material Ge2Sb2Te5Nadir AliO2016-01
Photonic MemoryShubham SinghO2017-01
RF-Photonic devicesRam Ashish YadavO2018-01
Active Photonic DevicesVikas SinghO2018-01
Reconfigurable Photonic DevicesMohd Faraz AbdullahO2019-01
Visits to outside institutions
Institute VisitedPurpose of VisitDate
VUB BrusselsResearch Collaboration2009-01-01
Technical University of EindhovenProject meeting2009-01-01
IBM Zurich Research LabProject meeting2010-01-01
LPN (CNRS)-Paris( Marcoussis Campus)Project meeting 2010-01-01
IBM Zurich Research LabProject meeting2011-01-01
Technical University of EindhovenProject meeting2011-01-01
IBM TJ Watson Research CenterResearch Talk2013-01-01
CSIO ChandigarhPotential Collaboration 2016-01-01
IISc BangaloreResearch Collaboration2016-01-01
SCL ChandigarhPotential Collaboration2016-01-01
R&D Center of Excellence, Sterlite AurangabadResearch Collaboration2017-01-01
IIT KanpurInvited talk in conference2019-01-01
SCL ChandigarhSilicon Photonics Project Planning Meeting2019-01-01
TBRL ChandigarhInvited Talk2019-01-01
Zhejiang UniversityResearch Collaboration2019-01-01
Invitations
TopicOrganistaionDate
All-optical flip-flopsPhotonics@be (Belgium)2009-01
Microdisks : From laser to flip-flops.....and moreIIT Delhi2009-01
III-V-on-silicon microdisks for on- and off-chip all-optical networks (invited), INTEL, Santa Clara, CA, USA, March 2012intel(Santa Clara), USA2012-01
InP-on-silicon microdisks for on- and off-chip all-optical communicationTNO, Delft, The Netherlands2012-01
CMOS compatible and Native CMOS Photonic Devices for Optical Interconnects and CommunicationIISc Bangalore (India)2016-01
CMOS compatible and Native CMOS Photonic Devices for Optical Communication Sterlite Optical Technologies-Aurangabad2017-01
Toxic Gas Nano-photonic Gas Sensors on a CMOS Compatible Chip UNO MINDA Manesar2018-01
CMOS Photonics to detect pre/post explosion gasesTBRL Chandigarh2019-01
Activating the Silicon Photonic Platform with Hybrid Integration Zhejiang University 2019-01
Integrated CMOS Compatible Hybrid Silicon Photonic DevicesNational Seminar Series, GGDSD College, Punjab University2020-01
Courses or Conferences Organised
Conference NameSponsored ByDate
High Speed Optical Transmitters for Optical InterconnectsGIAN(MHRD - Govt. of India)2020-07
National International Collaboration
TopicOrganisation
Silicon PhotonicsIISc Bangalore
Silicon Photonic DevicesCTI Renato Archer Brazil
Applications of Optical Fibers in Signal ProcessingSterlite Optical Technologies
Reconfigurable Silicon PhotonicsZhejiang University China
III-V-on-Silicon based THz PhotonicsGhent University Belgium
Refereed Journal Papers

PUBLICATIONS SUMMARY

  • International journal papers published: 18 (1 invited, 17 contributed, including one in Nature and one in Nature Photonics)
  • International conferences papers published:  49 (16 invited, 33 contributed)
  • Total number of citations: 1700+
  • h index: 14

International Journals

  1. C. Zhang, M. Zhang, Y. Xie, Y. Shi, R. Kumar, R. Panepucci and D. Dai, “Wavelength selective 2 X2 optical switch based on a GST assisted microring”, Photonics Research, (2020).
  2. M.F. Abdullah, A.K. Mukherjee, R. Kumar and S. Preu , “Vivaldi end-fire antenna for THz photomixers”, Journal of Infrared,  Millimeter and THz Waves , (2020).
  3. N. Ali and R. Kumar , “Mid-infrared silicon photonic switches using Ge2Sb2Te5 embedded in SOI waveguide”, Nanotechnology, 31(11), pp.115207(9pp)  (2020)
  4. N. Ali and R. Kumar , “Design of a novel nanoscale high performance phase-change silicon photonic switch”, Photonics and Nanostructure-Fundamentals and Applications, 32, pp.81-85  (2018).
  5. V. Srivastava,  M. Tolani, Sunny and R. Kumar “Design and Simulations of Ge2Sb2Te5 Vertical Photodetector for Silicon Photonic Platform”  IEEE Sensors Journal, 18(2), pp. 540-546 (2018).
  6. M. Tolani, Sunny, R.K. Singh, K. Shubham, and R. Kumar, “Two-Layer Optimized Railway Monitoring
    System using Wi-Fi and ZigBee Interfaced Wireless Sensor Network”, IEEE Sensors Journal, 17(7), pp.2241-48, 2017.
  7. C. Sun, M. Wade, M. Georgas, S. Lin, L. Alloatti, B. Moss, R. Kumar, A. Atabaki, F. Pavanello, J. M. Shainline, J. S. Orcutt,   R. Ram, M. Popovic and V. Stojanovic, A 45nm CMOS-SOI Monolithic Photonics Platform with Bit-Statistics-Based Resonant Microring Thermal Tuning”, IEEE Journal of Solid State Circuits, vol.51(4), pp. 893-907(2016).
  8. C. Sun, M. T. Wade, Y. Lee, J. S. Orcutt, L. Alloatti, M. S. Georgas, A. S. Waterman, J. M. Shainline, R. R Avizienis, S. Lin, B. R.  Moss, R. Kumar, F. Pavanello, A. H. Atabaki, H. M.  Cook, A. J.  Ou, J. C. Leu, Y.-H. Chen, K. Asanovic, R. J. Ram, M. A.  Popovi?, and V. M.  Stojanovic, “Single-chip microprocessor that communicates directly using light”, Nature, 528(534), pp.534-538 (2015). 
  9. T. Van Vaerenbergh, M. Fiers, P. Mechet, T. Spuesens, R. Kumar, G. Morthier, B. Schrauwen, J. Dambre and P. Bienstman, “ Cascadable excitability in microrings”, Optics Express, 20(18), pp.20292-20308 (2012).
  10. J. Lloret, R. Kumar, S. Sales, F. Ramos, G. Morthier, P. Mechet, T. Spuesens, D. Van Thourhout, N. Olivier, J.-M. Fedeli and J.Capmany, Ultra-compact electro-optic phase modulator based on III-V-on-silicon microdisk resonator”, Optics Letters, 37(12), pp.2379-2381 (2012).
  11. R. Kumar, T. Spuesens, P. Mechet, N. Olivier, J.- M. Fedeli, P. Regreny, G. Roelkens, D. Van Thourhout and G. Morthier, "10Gbit/s all-optical NRZ-OOK to RZ-OOK format conversion in an ultra-small III-V-on-silicon microdisk fabricated in a CMOS pilot line ", Optics Express, 19(24), pp. 24647-24656 (2011).
  12. R. Kumar, T. Spuesens, P. Mechet, P. Kumar, O.Raz, N. Olivier, J.- M. Fedeli, G. Roelkens, R. Baets, D. Van Thourhout and G. Morthier, "Ultra-fast and bias-free all-optical wavelength conversion using III-V-on-silicon technology", Optics Letters, 36(13), pp. 2450-2452 (2011).
  13. H. D. Jung, R. Kumar, P. Regreny, H. J. S. Dorren, T. Koonen and O. Raz, "Analog modulation characteristics of InP membrane microdisc laser for in-building networks", Electronics Letters, 47(2), pp. 121-123 (2011).
  14. D. Van Thourhout, T. Spuesens, S. Selvaraja, L. Liu, G. Roelkens, R. Kumar, G. Morthier, P. R. -Romeo, , F. Mandorlo, O. Raz, C. Kopp, and L. Grenouillet, "Nanophotonic devices for optical Interconnect", IEEE JSTQE (invited), 16(5), pp. 1363-1375 (2010).
  15. R. Kumar, L. Liu, G. Roelkens, E.-J.Geluk, T. de Vries, F. Karouta, P. Regreny, D. Van Thourhout, R. Baets and G. Morthier, "10GHz all-optical gate based on a III-V/SOI Microdisk ", IEEE Photonics Technology Letters, 22(13), pp. 981-983 (2010).
  16. L. Liu, R. Kumar, K. Huybrechts, T. Spuesens, G. Roelkens, E.-J. Geluk, T. de Vries, P. Regreny, D. Van Thourhout, R. Baets and G. Morthier, "An ultra-small, low-power, all-optical flip-flop memory on a silicon chip", Nature Photonics, 4(3), pp. 182-187 (2010).
  17. G. V. Prakash, K. Pradeesh, A. Kumar, R. Kumar, S. V. Rao, M. L. Markham and J. J. Baumberg, “Fabrication and optoelectronic characterisation of ZnO photonic structures”, Materials Letters, 62(8-9), pp. 1183-1186 (2008).
  18. J. Kaur, R. Kumar and M.C. Bhatnagar, “Effect of indium-doped SnO2 nanoparticles on NO2 gas sensing properties”, Sensors and Actuators B : Chemical, 126(2), pp. 474-484 (2007).

International Peer Reviwed Conferences

  1. J. Ahuja, S. Singh, N. Ali and R. Kumar, “Sub-Nanojoule Electro-Optic Switching Using Ge2Sb2Te5 Integrated on Silicon Waveguide”, The International Photonics and Optoelectronics Meeting (POEM )Wuhan, China, paper no. 3263731, 2019.
  2. S. Singh and R. Kumar,Silicon Photonic Waveguide Embedded Split Structure Ge2Sb2Te5 Cell for High Contrast Non-volatile Memory,” The International Photonics and Optoelectronics Meeting (POEM-2019), Wuhan, China, paper no. 3263731, 2019.
  3. N. Ali and R. Kumar, “Electro-thermal Phase Change Investigation for Integrated Silicon Photonic Switch and Memory”, International Conference on Optics & Electro-Optics (ICOL-2019), Dehradun, Uttarakhand, India, paper no. 240, 2019.
  4. N. Ali and R. Kumar, “Tunable optical filter enabled by phase change material embedded in SOI microring resonator,’’ The 80th JSAP-OSA Autumn Meeting 2019, paper no. C003739, 2019.
  5. R. Kumar, N. Ali and S. Singh, High performance and CMOS-compatible photonic switches based on phase change materials (Invited) ”, SPIE/COS Photonics Asia, paper  no. 11184-11, 2019.
  6. N. Ali and R. Kumar “Thermal Analysis of non-volatile optical switch for 1.55 µm applications”, International Conference on Photonics, Metamaterials & Plasmonics (PMP-2019), paper no. PT-56, pp.111(2019)
  7. R. Kumar, N. Ali, and S. Singh, “Nonvolatile Photonic Switching Devices On CMOS Compatible Platform” (Invited), IEEE International  Conference in Emerging Electronics, ICEE, Bangalore, 16-19 November 2018.
  8. N. Ali, and R. Kumar, “Chip-scale Mid Infra-red Photonic Switch Based on Ge2Sb2Te5 Incorporated in SOI Waveguide”, The International Conference on Fiber Optics and Photonics, Photonics- 2018, Manuscript ID 301, IIT Delhi New Delhi, India, 12-15 December, 2018.
  9. N. Ali, and R. Kumar, “Mid-IR Integrated Photonic Switch Using Non-volatile Phase Change Material Ge2Sb2Te5 Incorporated in Silicon-on-Insulator Waveguide”, International Conference on Optical Communications and Networks (ICOCN-2018), Manuscript ID ICOCN2018-2018-000081, Zhuhai, China.
  10. R. Kumar, S.Singh, N.Ali, and A. Sharma, “Hybrid Silicon Photonic Devices for Switching and Memory Applications”(Invited)", paper number 106,  OSI-ISO (Optical Society of India-International  Symposium  on Optics) (2018).
  11. N. Ali and R. Kumar, “Mid Infra-red Directional Coupler Optical Switch Based on Phase Change Material Embedded in Partially Etched SOI Waveguide, Frontiers in Optics/Laser Science Conference (FIO/LS) , pp. paper JTu2A.102, (2018).
  12. M. Rehan, G. Kumar, V. Rastogi, and R. Kumar, “Femtosecond Pulse Propagation through Large Mode Area Tapered Fiber at 1.06 μm Wavelength”,  Frontiers in Optics/Laser Science Conference (FIO/LS), pp.paper  JW3A.81 (2018).
  13. S. Singh, N. Ali and R. Kumar, “Three Dimensional Optimization of Non-volatile Random Access Photonic Memory Cell”, (paper number 170619105943), proceedings of PIERS Singapore (2017).
  14. U.S. Tripathi, R. Kumar and V. Rastogi, “Fabrication of Long Period Waveguide Gratings in Ion Exchanged BK7 Rib Waveguide by Excimer Laser Ablation Method”,  (paper number 17061517140), proceedings of PIERS Singapore PIERS (2017).
  15. C. Sun, M.  Wade, Y. Lee, J.  Orcutt, L. Alloatti, M. Georgas, A. Waterman, J. Shainline, R.  Avizienis, S. Lin, B. Moss, R. Kumar, F. Pavanello, A. Atabaki, H. Cook, A. Ou, J. Leu, Y.-H. Chen, K. Asanovic, R.  Ram, M. A. Popovic, V. Stojanovic, "Microprocessor Chip with Photonics I/O"(Invited),”, The Optical Fiber Communication Conference (OFC) 2017, United States, pp. paper W1A.1, (2017)
  16. F. Pavanello, M.T. Wade, J. Notaros, J. M. Shainline, C. V. Poulton, C. Sun, M. Georgas, L. Alloatti, A.  Atabaki, R. Kumar, B. Moss, S. Lin, R. J. Ram, V. Stojanovic, and M. A. Popovic,  “Efficient nanoscale photonic devices and monolithic electronic-photonic subsystems in sub-100 nm SOI CMOS”,  (Invited) Photonics Conference(IPC) 2015.
  17. C. Sun, M. Wade, M. Georgas, S. Lin, L. Alloatti, B. Moss, R. Kumar, A. Atabaki, F. Pavanello, R. Ram, M. Popovi? and V. Stojanovi?, “A 45nm SOI Monolithic Photonics Chip-to-Chip Link with Bit-Statistics-Based Resonant Microring Thermal Tuning”, IEEE VLSI Symposia 2015.
  18. Milos A. Popovic, Mark T. Wade, Jason S. Orcutt, Jeffrey M. Shainline, C. Sun, Michael Georgas, Benjamin Moss, F. Pavanello, J. Notaros, L. Alloatti, R. Kumar, Yu-Hsin Chen, Amir H. Atabaki, J. Leu, Vladimir Stojanovic, and R. J. Ram “Photonics as a More-than-Moore Device Technology within Sub-100 nm SOI CMOS”, (Invited),”  (paper number 150306031339) in PIERS (Progress In Electromagnetics Research Symposium), 2015.
  19. M. T. Wade, F. Pavenello, J. S. Orcutt, R. Kumar, J. M. Shainline, V. Stojanovic, R. Ram  and M. A. Popovic, “ Scaling Zero-Change Photonics: An Active Photonics Platform in 32nm Microelectronics SOI CMOS Process”, Conference on Lasers and Electro-Optics (CLEO) 2015, United States, pp.paper SW4N.1, 2015
  20. M.T. Wade, F. Pavanello, R. Kumar, C.M. Gentry, A. Atabaki, R. Ram, V. Stojanovic and M.A. Popovic, “75% efficient wide bandwidth grating couplers in a 45 nm microelectronics CMOS process,” IEEE Optical Interconnects Conference (OI) 2015, pp. 46-47, 2015.
  21. M.A. Popovi?, M.T. Wade, J.S. Orcutt, J.M. Shainline, C. Sun, M. Georgas, B. Moss, R. Kumar, L. Alloatti, F. Pavanello, Y.H. Chen, K. Nammari, J. Notaros, A. Atabaki, J.C. Leu, V. Stojanovic, R.J. Ram, “Monolithic Silicon Photonics in a Sub-100nm SOI CMOS Microprocessor Foundry: Progress from Devices to Systems (Invited),” SPIE Photonics West: OPTO Silicon Photonics X, February 2015, paper 9367-66.
  22. M. T. Wade, R. Kumar, K. Nammari, C. M. Gentry, J. M. Shainline, J. S. Orcutt, A. Tamma, R. Ram, V. Stojanovic  and M. A. Popovic, “Unidirectional Chip-to-Fiber grating couplers in unmodified 45nm CMOS technology”, Conference on Lasers and Electro-Optics (CLEO) 2014, United States, pp. paper STh3M (2014).
  23. M. T. Wade, J. M. Shainline, J.  S. Orcutt, C. Sun, R. Kumar, B. Moss, M. Georgas, V. Stojanovic, R. J. Ram and M. A. Popovic, “Energy-efficient active photonics in zero change, state-of-the-art CMOS process ”, The Optical Fiber Communication Conference and Exposition and The National Fiber Optic Engineers Conference (OFCNFOEC) 2014, United States, pp. paper Tu2E.7, (2014).
  24. T. Van Vaerenbergh, M. Fiers, P. Mechet, T. Spuesens, R. Kumar, G. Morthier, K.T Vandoorne, B. Schneider, B. Schrauwen, J. Dambre and P. Bienstman, “Characterization of cascadable excitability in a silicon-on-insulator microring”, Annual Symposium of the IEEE Photonics Benelux Chapter, Belgium, pp.119-122 (2012).
  25. T. Van Vaerenbergh, M. Fiers, P. Mechet, T. Spuesens, R. Kumar, G. Morthier, K.T Vandoorne, B. Schneider, B. Schrauwen, J. Dambre and P. Bienstman, “ Self-pulsation and excitability mechanism in silicon-on-insulator microrings”,  Asia Communications and Photonics Conference (ACP) 2012, China, pp. paper ATh4B,  (2012).
  26. G. Roelkens, S. Keyvaninia, S. Stankovic, M. Tassaert, N. Hattasan, A. Gassenq, P. De Heyn, Y. De Koninck, P. Mechet, R. Kumar, M. Muneeb, D. Vermeulen, G. Morthier, R. Baets and D. Van Thourhout, “III-V-on-silicon membrane photonics for near-infrared and mid-infrared applications”,16th European Conference on Integrated Optics (ECIO 2012) (invited), Spain, (2012).
  27. R. Kumar, T. Spuesens, P. Mechet, N. Olivier, J.- M. Fedeli, P. Regreny, G. Roelkens, D. Van Thourhout and G. Morthier, "10Gbit/s Bias-free and Error-free All-optical NRZ-OOK to RZ-OOK Format Conversion Using a III- V-on-silicon Microdisk Resonator ", The Optical Fiber Communication Conference and Exposition and The National Fiber Optic Engineers Conference (OFCNFOEC) 2012, United States, pp. paper JW2A.77, (2012).
  28. R. Kumar, T. Spuesens, P. Mechet, J.– M. Fedeli, N. Olivier, P. Regreny, G. Roelkens, D. Van Thourhout, G. Morthier, "All-optical de-multiplexing of 10Gbps data using III-V/SOI microdisk resonators", Annual Symposium of the IEEE Photonics Benelux Chapter, Belgium, pp. 89-92 (2011).
  29. G. Morthier, P. Mechet, R. Kumar, G. Roelkens, T. Spuesens, T. De Vries, E. J. Geluk, P. Regreny, R. Baets, and D. Van Thourhout, "Progress in heterogeneously integrated silicon-InP laser diodes for on-chip all-optical networks and signal processing", Frontiers in Optics(FiO) 2011 (invited), United States, pp. paper FWBB4 (2011).
  30. G. Roelkens, S. Stankovic, S. Keyvaninia, P. Mechet, R. Kumar, T. Spuesens, G. Morthier, R. Baets, D. Van Thourhout, M. Lamponi, G. Duan, Y. Halioua, F. Raineri and R. Raj, "Laser sources on a heterogeneous III- V/silicon platform", IEEE Photonics Conference(IPC) 2011 (invited), United States, pp. 395-396 (2011).
  31. R. Kumar, T. Spuesens, P. Mechet, J.– M. Fedeli, N. Olivier, P. Regreny, G. Roelkens, D. Van Thourhout and G. Morthier, "Proof-of-concept Demonstration of an All-Optical De-multiplexer Using III-V/SOI Microdisk Resonator Fabricated in a CMOS Pilot Line", IEEE Photonics Conference (IPC) 2011, United States, pp. 127-128 (2011).
  32. R. Kumar, T. Spuesens, P. Mechet, P. Regreny, J.- M. Fedeli, N. Olivier, G. Roelkens, D. Van Thourhout and G. Morthier, "All-optical de-multiplexing using III-V/SOI microdisk resonators", European Semiconductor Laser Workshop (ESLW), Switzerland, (2011).
  33. R. Kumar, T. Spuesens, P. Mechet, P. Regreny, N. Olivier, J.-M. Fedeli, G. Roelkens, D. Van Thourhout and G. Morthier, "10Gbps bias-free all-optical wavelength conversion using InP-microdisk resonators heterogeneously integrated onto SOI ", European Conference on Optical Communications (ECOC) 2011, Switzerland, pp. paper We.9.LeSaleve.3 (2011).
  34. O. Raz, H.J.S.Dorren, R. Kumar, G. Morthier, P. Regreny and P. Rojo-Romeo, "50 fJ-per-bit, high Speed, directly modulated light sources for on-chip optical data communications", The Optical Fiber Communication Conference       Exposition and The National Fiber Optic Engineers Conference (OFCNFOEC) 2011, United States, pp. paper OMM5 (2011).
  35. P. Mechet, L. Liu, R. Kumar, K. Huybrechts, T. Spuesens, G. Roelkens, E.-J. Geluk , T. De Vries , P. Regreny , D. Van Thourhout, R. Baets and G. Morthier, "Heterogeneously integrated microdisk lasers for optical interconnects and optical logic", SPIE Photonics West 2011(invited), 7913, United States, pp. 791319 (2011).
  36. O. Raz, H. D. Jung, R. Kumar, P. Regreny, T. Koonen and H. J. S. Dorren, "Integrated InP membrane light sources for analog CMOS photonic transmitters", Annual Symposium of the IEEE Photonics Benelux Chapter, Netherlands, pp. 177-180 (2010).
  37. R. Kumar, P. Kumar, G. Roelkens, L. Liu, P. Regreny, T. de Vries, D. Van Thourhout, R. Baets and G. Morthier, "Performance analysis of III-V/SOI microdisk based all-optical gate for on-chip interconnects", Annual Symposium of the IEEE Photonics Benelux Chapter, Netherlands, pp. 129-131 (2010).
  38. K. Huybrechts, L. Liu, R. Kumar, T. Spuesens, G. Roelkens, E.J. Geluk, T. De Vries, P. Regreny, D. Van Thourhout, R. Baets and G. Morthier, "All-optical flip-Flops using electrically pumped microdisk lasers integrated on silicon ", IEEE Photonics Society Annual Meeting 2010 (invited), United States, p.paperMH1,  (2010).
  39. O. Raz, L. Liu, R. Kumar, G. Morthier, P. Regreny and H.J.S. Dorren, “A single InP membrane disc cavity for both transmission and detection of 10Gb/s signals in on-chip interconnects”, European Conference on Optical Communications (ECOC) 2010, Italy, pp. paper P2.12, (2010).
  40. G. Roelkens, D. Vermeulen, L. Liu, T. Spuesens, R. Kumar, P. Mechet, K. Huybrechts, S. Keyvaninia, S. Stankovic, M. Tassaert, P. De Heyn, K. Komorowska, S. Selvaraja, D. Van Thourhout, G. Morthier, R. Baets and R. Halir, "III-V/silicon photonic integrated circuits for FTTH and optical interconnect", The Fifith international Conference on Broadband and Biomedical Communications (IB2COM) 2010 (invited), Spain, (2010).
  41.  J. Hofrichter, O. Raz, F. Horst, N. Chrysos, C. Minkenberg, T. de Vries, H. J. S. Dorren, R. Kumar, L. Liu and B.-J. Offrein, "A fast and comprehensive microdisc laser model applied to all-optical wavelength conversion", Integrated Photonics Research, Silicon and Nano Photonics (IPR), Photonics in Switching (PS) 2010, United States, pp. PTuA2  (2010).
  42. G. Morthier, L. Liu, R. Kumar, P. Mechet, K. Huybrechts, G. Roelkens, T. Spuesens, T. de Vries, E.J. Geluk, P. Regreny, R. Baets and D. Van Thourhout, "Heterogeneous InP on SOI integration for the realization of all- optical logic devices", Integrated Photonics Research, Silicon and Nano Photonics (IPR), Photonics in Switching (PS) 2010 (invited), United States, pp. IWF2,  (2010).
  43. J. Hofrichter, F. Horst, N. Chrysos, C. Minkenberg, R. Kumar, L. Liu, G. Morthier, T. de Vries and B.J. Offrein, "Digital all-optical signal processing using microdisk lasers", Integrated Photonics Research, Silicon and Nano Photonics (IPR), Photonics in Switching (PS)2010, United States, pp. PTuA3 (2010).
  44. G. Morthier, R. Kumar, F. Raineri, R. Raj, J. Hofrichter, N. Chrysos, B.J. Offrein, R. Zhang, J. van der Tol, O. Raz and H.J.S Dorren, "Overview of the EU FP7-project HISTORIC", Proceedings of SPIE - Silicon Photonics and Photonic Integrated Circuits II 7719 (invited), Belgium, pp. 771908, (2010).
  45. K. Huybrechts, L. Liu, R. Kumar, T. Spuesens, G. Roelkens, E.-J. Geluk, T. de Vries, M. Smit, P. Regreny, P. Rojo-Romeo, D. Van Thourhout, R. Baets and G. Morthier, "Digital photonics using InP microdisk lasers heterogeneously integrated on Silicon-on-Insulator", European Conference on Integrated Optics (ECIO) 2010 (invited), United Kingdom, pp. WeF1, (2010).
  46. O. Raz, L. Liu, R. Kumar, G. Morthier, D. Van Thourhout, P. Regreny, P. Rojo-Romeo, T. de Vries and H.J.S. Dorren, "Compact, low power and low threshold electrically pumped micro disc lasers for 20Gb/s non return to zero all optical wavelength conversion", The Optical Fiber Communication Conference and Exposition and The National Fiber Optic Engineers Conference (OFCNFOEC) 2010, United States, pp. OMQ5, (2010).
  47. R. Kumar, K. Huybrechts, L. Liu, T. Spuesens, G. Roelkens, E.-J. Geluk, T. de Vries, P. Regreny, D. Van Thourhout, R. Baets and G. Morthier, "An ultra-small, low-power all-optical flip-flop memory on a silicon chip", The Optical Fiber Communication Conference and Exposition and The National Fiber Optic Engineers Conference (OFCNFOEC) 2010, United States, pp. OTuN7, (2010).
  48. R. Kumar, L. Liu, G. Roelkens, E.-J. Geluk , T. de Vries, P. Regreny, D. Van Thourhout, R. Baets and G. Morthier, "10GHz all-optical gate on a silicon chip", The Optical Fiber Communication Conference and Exposition and The National Fiber Optic Engineers Conference (OFCNFOEC) 2010, United States, pp. JWA44 (2010).
  49. R. Kumar, L. Liu, G. Roelkens, G. Morthier and R. Baets, "Simple and accurate measurements to characterize microdisk lasers for all-optical flip-flop operation", Annual Symposium of the IEEE Photonics Benelux Chapter, Belgium, pp. 81-84 (2009).
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