Research Publication | Centre for Programmable Photonic Integrated Circuits and Systems

As far as research publications are concerned, we believe in quality rather than quantity. Our research scholars are encouraged for subjective understanding, careful fabrication process optimizations and experimental observation, and publish only the breakthrough research outcomes. In this page, you may find some of our interesting research publications along with their appropriate download links.

Journals

Conferences

Workshops

Patents

Ashitosh Velamuri and Bijoy Krishna Das. “Programmable Silicon Photonic RF Filters with Symmetric Out-of-Band Rejection ” Journal of Lightwave Technology , 2023 , doi: 10.1109/JLT.2023.3323477.

Arnab Goswami and Bijoy Krishna Das. “Design and demonstration of an efficient pump rejection filter for silicon photonic applications ” Optics Letters ( Volume: 47, Issue: 6, pp 1474-1477, 15 March 2022).

Riddhi Nandi, Arnab Goswami and Bijoy Krishna Das. “Phase Controlled Bistability in Silicon Microring Resonators for Nonlinear Photonics ” IEEE Journal of Selected Topics in Quantum Electronics ( Volume: 27, Issue: 2, March-April 2021).

Sumi R, Nandita DasGupta, and Bijoy Krishna Das. “Integrated optical linear edge filters using apodized sub-wavelength grating waveguides in SOI,” IEEE Photonics Technology Letters, vol. 31, Issue. 17, pp1449-1452, September 2019.

Sumi R, Ramesh K. Gupta, Nandita DasGupta and Bijoy Krishna Das, “Ultra-Broadband Add-Drop Filter/Switch Circuit Using Subwavelength Grating Waveguides,” IEEE Journal of Selected Topics in Quantum Electronics, Vol. 25, Issue 3, MAY/JUNE 2019.

Ramesh K. Gupta and Bijoy K. Das, “Performance analysis of metal-microheater integrated silicon waveguide phase-shifters” OSA Continuum, Vol. 1, Issue 2, pp. 703-714, 2018.

Parimal Sah and Bijoy Krishna Das, “Photonic bandpass filter characteristics of multimode SOI waveguides integrated with submicron gratings” ,Applied Optics, Vol. 57, Issue 9, pp. 2277-2281, 2018.

Ramesh K. Gupta, Sujith Chandran and Bijoy Krishna Das, “Wavelength Independent Directional Couplers for Integrated Silicon Photonics”, IEEE/OSA Jounal of Lightwave Technology, Vol. 35, No. 22, pp. 4916-4923, November 15, 2017.

Riddhi Nandi, Sreevatsa Kurudi and Bijoy Krishna Das, “Diffusion doped p-i-n/p-n diodes for scalable silicon photonics devices” Proc. SPIE 10249, Integrated Photonics: Materials, Devices, and Applications IV, 102490Q (May 30, 2017).

Sujith Chandran, Meenatchi Sundaram, Sreevatsa Kurudi and Bijoy Krishna Das, “Design and fabrication of surface trimmed silicon-on-insulator waveguide with adiabatic spot-size converters” Applied Optics, Vol. 56, Issue 9, pp. 1708-1716, 2017.

Ramesh K. Gupta and Bijoy K. Das. “Multi-input and multi-output SOI (MIMO-SOI) platform for silicon photonics”, CSI Transactions on ICT, Vol. 5, No. 2, pp. 189-193, June 2017.

Sujith Chandran, Ramesh K. Gupta and and Bijoy Krishna Das, “Dispersion Enhanced Critically Coupled Ring Resonator for Wide Range Refractive Index Sensing”, IEEE Journal of Selected Topics in Quantum Electronics, Vol. 23, No. 2, March /April 2017.

Parimal Sah and Bijoy Krishna Das, “Integrated Optical Rectangular-Edge Filter Devices in SOI”, IEEE/OSA Journal of Light Wave Technology, Vol. 35, No. 2, pp. 128-135, 2017.

B K Das, N DasGupta, S Chandran, S Kurudi, P Sah, R Nandi, Ramesh K, Sumi R, S Pal, S Kaushal, S M Sundaram, P Sakthivel, Sidharth R, R Joshi, H Sasikumar, U Karthik, S Krubhakar, G R Bhatt, J P George, R K Navalakhe, Narendran R, and I Seethalakshmi, “Silicon Photonics Technology”: Ten Years of Research at IIT Madras”, Asian Journal of Physics, Vol. 25, No. 7, pp. 923 – 955, 2016

Saket Kaushal and Bijoy Krishna Das, “Modelling and experimental investigation of an integrated optical microheater in silicon-on-insulator”, Applied Optics, Vol. 55, No.11, pp. 2837 – 2842 April 2016.

Shantanu Pal, Bijoy Krishna Das, Wolfgang Sohler, “Photorefractive damage resistance in Ti:PPLN waveguides with ridge geometry”, Applied Physics B: Lasers and Optics, vol. 120, pp. 737-749, August 2015.

Chandran, B.K. Das, “Surface trimming of silicon photonics devices using controlled reactive ion etching chemistry”, Photonics and Nanostructures – Fundamentals and Applications, vol. 15 pp. 32–40, June 2015.

Sidharth and B. K. Das, “Semi-analytical model of arrayed waveguide grating in SOI using Gaussian beam approximation,” Applied Optics, vol. 54, pp. 2158-2163, March 2015.

Harish, D. Venkitesh and B. K. Das, “Highly efficient DBR in silicon waveguides with eleventh order diffraction,” Proc. SPIE, pp. 86290H- 86290H, March 2013.

Uppu Karthik and B. K. Das, “Polarization-independent and dispersion-free integrated optical MZI in SOI substrate for DWDM applications”, Proc. SPIE 8629, Silicon Photonics VIII, 862910, March 2013.

G.R. Bhatt, B.K. Das, “Improvement of polarization extinction in silicon waveguide devices,” Optics Communication, vol. 285, no. 8, pp. 2067-2070, April 2012.

G.R. Bhatt, R. Sharma, U. Karthik, B.K. Das, “Dispersion-free SOI interleaver for DWDM applications”, IEEE/OSA Journal of Lightwave Technology, vol. 30, no. 1, pp. 140-146, January 2012.

I.S. Krubhakar, R. Narendran, and B.K. Das, “Design and fabrication of integrated optical 1×8 power splitter in SOI substrate using large cross-section single-mode waveguides”, Proc. SPIE , vol. 8173, 81730C, 2011.

Pal, and B.K. Das, “Fabrication of ridge waveguide in X-cut LiNbO3 for nonlinear optic applications”, Proc. SPIE 8173, 81730W, 2011.

G.R. Bhatt, and B. K. Das, “Demonstration of ITU channel interleaver in SOI with large cross section single mode waveguides”, Proc. SPIE 8069, 806904, 2011.

John P. George, N. Dasgupta, and B.K. Das, “Compact integrated optical directional coupler with large cross section silicon waveguides”, Proc. SPIE 7719, 77191X, 2010.

Rupesh Kumar Navalakhe, Nandita DasGupta, and Bijoy Krishna Das, “Fabrication and characterization of straight and compact S-bend optical waveguides on a silicon-on-insulator platform”, Applied Optics, vol. 48, no. 31, pp. G125-G130, October 2009.

Arnab Goswami, Riddhi Goswami, Janakiraman Viraraghavan and Bijoy K Das “ Programmable Silicon Photonic Microring Resonator for Nonlinear Applications” Oral Presentation, Advanced Photonics Congress 2023, Busan, South Korea, 9th July- 13th July, 2023.

Suvarna Parvathy K V, Arnab Goswami and Bijoy Krishna Das “ Temperature Dependent Performance Analysis Near Critical Coupling : Microdisc versus Microring Resonators ” Poster Presentation, Advanced Photonics Congress 2023, Busan, South Korea, 9th July- 13th July, 2023.

Bijoy Krishna Das “ Special Filters for Silicon Photonic Integrated Circuits ” Invited Talk, PHOTONICS 2023, Bangaluru, India 5th July- 8th July, 2023.

Ashitosh Velamuri and Bijoy Krishna Das “ Integrated Programmable Microwave Photonic Bandpass Filter with Symmetric Rejection ” Poster Presentation, CLEO 2023, San Jose,California, United States, 7th May- 12th May, 2023.

Pratyasha Priyadarshini, Arnab Goswami, Ashitosh Velamuri and Bijoy Krishna Das “ Thermo-optically Tunable DBR Resonator with Ultra-broad Rejection Band for Silicon Photonic Applications ” Oral Presentation, European Conference on Integrated Optics 2023, Enschede, The Netherlands, 19th April- 21st April, 2023.

Anushka Tiwari, Sarad Subhra Bhakat, Riddhi Goswami, Pranita Kumari Swain, Arnab Goswami, Enakshi Bhattacharya and Bijoy Krishna Das “ In-house SiN process development for integrated photonic applications ” Oral Presentation, International Conference on Emerging Electronics (ICEE) 2022, Bengaluru, India, 11th December- 14th December, 2022.

Pratyasha Priyadarshini, Arnab Goswami, and Bijoy Krishna Das “Flat-top and High Shape Factor DBR Based Resonant Filters for Integrated Silicon Photonics ” Poster Presentation, Frontiers in Optics 2022, Rochester, New York, United States, 17th October- 20th October, 2022.

Ashitosh Velamuri and Bijoy Krishna Das “Accurate Measurement of Optical Delay in a Programmable Microring Resonator ” Poster Presentation, Frontiers in Optics 2022, Rochester, New York, United States, 17th October- 20th October, 2022.

Riddhi Nandi, Arnab Goswami and Bijoy Krishna Das “Electrically Controlled Bistability in Microring Resonators for Nonlinear Photonic Applications”, Poster Presentation, CLEO – Pacific Rim – 2020, Sydney, Australia, 3rd August- 5th August, 2020.

Arnab Goswami and Bijoy Krishna Das “High Extinction Pump Rejection Bragg Filters for Silicon Quantum Photonic Devices” Oral Presentation, CLEO – 2020, San Jose, California, 11th May- 15th May, 2020.

Arnab Goswami and Bijoy Krishna Das, “Efficient Four Wave Mixing in a Silicon Photonic Wire Waveguide and Resonator”, Oral Presentation, International conference on optics and electro-optics (ICOL-2019) (XLIII Symposium of Optical Society of India); Instruments Research Development Establishment Dehradun, Uttarakhand, India,19-22 October 2019.

Shivani Sharma, Arnab Goswami, Joyee Ghosh, Vivek Venkataraman, Bijoy K. Das, “Telecom-band wavelength Conversion in Air-clad Silicon Waveguides”, Poster Presentation, International conference on optics and electro-optics (ICOL-2019) (XLIII Symposium of Optical Society of India); Instruments Research Development Establishment Dehradun, Uttarakhand, India, 19-22 October 2019.

Riddhi Nandi, Ramesh K. Gupta and Bijoy Krishna Das, “Thermo-optic Tuning of Microing Resonators using Diffusion Doped Microheaters in SOI” , Poster Presentation, 14th International Conference on Fiber Optics and Photonics, IIT Delhi, India , 12-15 December 2018.

B Meena, Sumi R, and Bijoy Krishna Das, “Fabry-Perot Cavity Resonances in Apodized Sub-Wavelength Grating Waveguides”, Poster Presentation, 14th International Conference on Fiber Optics and Photonics, IIT Delhi, India , 12-15 December 2018.

B.K. Das, “Design and modeling of thermo-optic phase-shifters for integrated silicon photonics “, OSI-ISO 2018, International Symposium on Optics, IIT Kanpur, 19-22 September 2018 (Invited).

Ramesh K. Gupta and Bijoy Krishna Das, “Wideband MZI based Thermo-Optic Switch with Slab Integrated Microheater in SOI“ , Poster Presentation, CLEO – 2018, Hong Kong, 29th July- 3rd August, 2018.

Sumi R, N. Dasgupta and Bijoy Krishna Das, ”Integrated optical Edge Filter using Apodized Sub – Wavelength Grating Waveguide in SOI” , Poster Presentation, ECIO – 2018, Valencia, Spain, 30th May-1st June, 2018.

Sumi R, Ramesh K Gupta, Nandita DasGupta and Bijoy Krishna Das, “Integrated Optical Ultra-Broadband Add-Drop Filter in Silicon-On-Insulator Platform”, Oral OFC 2018, San Diego, USA, 11th -15th March 2018.

Ramesh K. Gupta and B.K. Das, “Integrated Silicon Photonics Directional Couplers for WDM Applications”, Oral Presentation, ICMAP-2018, IIT Dhanbad, 9-11 February 2018.

Riddhi Nandi and B.K. Das, “Polarization Dependent Electro-Optic Effect in SOI Waveguides with Laterally Diffused P-N Junction”, Oral Presentation, ICMAP-2018, IIT Dhanbad, 9-11 February 2018.

Sreevatsa Kurudi, Riddhi Nandi and Bijoy Krishna Das, “Scaling of Silicon PIN Waveguide Photodetector at 1550 nm Wavelength”, Poster Presentation, IWPSD – 2017, IIT Delhi, India (11-15 December, 2017).

S.M. Sundaram, S. Chandran and B.K. Das, “Loss Estimation of Adiabatically Tapered Silicon Waveguides”, Oral Presentation, ICAOP-2017 (41st OSI), Hisar, India (23-26 November 2017).

Sah and B.K. Das, “Integrated Optical λ/4 Phase-Shifted High-Q DBR Cavity in Silicon-On-Insulator”, Oral Presentation, ICAOP-2017 (41st OSI), Hisar, India (23-26 November 2017).

Sumi R, Nandita DasGupta, and Bijoy Krishna Das, “Integrated Optical Mach-Zehnder Interferometer with Sensing Arm of Sub-Wavelength Grating Waveguide in SOI”, Poster Presentation, IEEE Sensors – 2017, Glasgow, Scotland, UK (29th October – 1st November, 2017).

Riddhi Nandi, Sreevatsa Kurudi and Bijoy Krishna Das, “Diffusion doped p-i-n/p-n diodes for scalable silicon photonics devices” , Poster presentation, SPIE Microtechnologies, Barcelona, Spain (8 – 10 May 2017).

Parimal Sah and Bijoy Krishna Das, “Broadband wavelength filter device using a sidewall grating in multimode SOI rib waveguide”, Oral Presentation in OFC 2017, Los Angeles, CA, USA (19-23 March 2017) .

Sumi R, N. DasGupta, and B.K. Das, “Demonstration of integrated optical 2D photonic crystal waveguides in SOI for sensing applications”, Oral Presentation, 13th International Conference on Fibre Optics and Photonics, IIT Kanpur, India (4-8 December 2016).

Kurudi, and B.K. Das, “Design and demonstration of polarization independent variable optical attenuator with SOI waveguides”, Oral Presentation, 13th International Conference on Fibre Optics and Photonics, IIT Kanpur, India (4-8 December 2016)

B.K. Das, “Silicon Photonics for High-Speed Optical Interconnects”, General Talk – 2,2nd URSI Regional Conference on Radio Science (URSI-RCRS 2015),New Delhi, India (16-19 Nov. 2015) .

Saket Kaushal, B.K. Das, “Design of maximally flat delay lines using apodized CROW structure in SOI”, 12th International Conference on Fibre Optics and Photonics, Kharagpur, India (13-16 December 2014) .

Sidharth Ravindran, B.K. Das, “Modeling and Phase Error Analysis of AWG in SOI using Gaussian Beam Approximation”, 12th International Conference on Fibre Optics and Photonics, Kharagpur, India (13-16 December 2014 )

K. Das, S. Chandran, R. Sidharth, S. Kaushal, and P. Sah, “Nanoscale Tolerance for Silicon Optical Interconnect Devices”, Invited Talk, National Conference on Nanoscience and Nanotechnology (NS&NT – 2014), , CRNN, University of Calcutta, Kolkata (18-19 September 2014).

K. Das, S. Chandran and S. Kaushal, “Optical Interconnect devices with scalable waveguide cross-sections in SOI platform” Invited Talk, ICOL-2014, Dehradun, India (5-8 March 2014) .

Sidharth Ravindran and B.K. Das, “Design and fabrication of 8-channel AWGs with 2-µm-SOI for optical interconnects”, SPIE Photonics West 2014, San Francisco, CA, USA (1-6 February 2014).

Sujith Chandran, Saket Kaushal and B.K. Das, “Monolithic integration of micron to submicron waveguides with 2D mode-size converters in SOI platform” Invited Talk, SPIE Photonics West 2014, San Francisco, CA, USA (1-6 February 2014).

R.Joshi, B.K.Das, N.D.Gupta, “Design of 2D Photonic crystals for integrated optical slow light applications” IWPSD-2013, Noida, India (Dec 2013).

I Seethalakshmi, R.Joshi, B. K. Das, N.D.Gupta “Inductively coupled plasma etching of GaAs with high anisotropy for photonics applications” IWPSD-2013, Noida, India (Dec 2013).

Sakthivel, N. Dasgupta, and B.K. Das, “Simulation and experimental studies of diffusion doped p-i-n structures for silicon photonics”, SPIE Photonics West 2013, San Francisco, CA, USA (2-7 February 2013)

Karthik and B.K. Das, “Polarization-independent and dispersion-free integrated optical MZI in SOI substrate for DWDM applications”, SPIE Photonics West 2013, San Francisco, CA, USA (2-7 February 2013)

Sasikumar, D. Venkitesh, and B.K. Das, “Highly efficient DBR in silicon waveguides with eleventh order diffraction”, SPIE Photonics West 2013, San Francisco, CA, USA (2-7 February 2013)

Chandran, B.K. Das, “Tapering and Size Reduction of Single-mode Silicon Waveguides by maskless RIE”, OECC 2012 – Optoelectronics Communication Conference, Bexco, Busan Korea, (02-06, July ,2012).

G.R. Bhatt, and B.K. Das, “Demonstration of ITU channel interleaver in SOI with large cross section single mode waveguides”, SPIE Microtechnologies, Prague, Czech Republic (18-20 April 2011).

G.R. Bhatt, P.V. Vivek, and B.K. Das, “Attenuation of TM polarized light in metal coated SOI rib waveguides due to plasmonic absorption,” PHOTONICS 2010-International Conference on Fiber Optics and Photonics, Guwahati, India, (12 – 15 December 2010).

I.S. Krubhakar, R. Narendran, Y.K. Karthik, and B.K. Das, “Fabrication of 1X8 power splitter in SOI substrate with optimized design parameters,” Photonics 2010-International Conference on Fiber Optics and Photonics, Guwahati, India (12 – 15 December 2010).

Pal, and B.K. Das, “Fabrication of ridge waveguide in X-cut lithium niobate for nonlinear optic applications,” PHOTONICS 2010-International Conference on Fiber Optics and Photonics, Guwahati, India, (12 – 15 December 2010).

John P. George, N. Dasgupta, and B.K. Das, “Compact Integrated Optical Directional Coupler with Large Cross Section Silicon Waveguides,” Photonics Europe (SPIE), Brussels, Belgium (12 – 16 April 2010).

P. George, A. Manjusha, and B. K. Das, “Silicon Nitride ARC for SOI Integrated Optical Devices,” IWPSD-2009 XVth International Workshop on Physics of Semiconductor Devices, New Delhi, India (15 – 19 December 2009).

Rajneesh, S. Pal, and B. K. Das, “Fabrication and Characterization of Integrated Optical TE-Pass Polarizer in LiNbO3,” ICOP-2009 International Conference on Optics and Photonics, Chandigarh, India (30 October – 1 November 2009).

B.K. Das, “State-of-the-art technology and performance analysis of thermo-optic microheaters for silicon photonics applications “, 4th IEEE-ICEE, Bengaluru, India, 16-19 December 2018

B.K. Das, “Thermo-Optic Phase-Shifters for Silicon Photonic Integrated Circuit”, 14th International Conference on Fiber Optics and Photonics, IIT Delhi, India, 12-15 December 2018.

B.K. Das, “Design and modeling of thermo-optic phase-shifters for integrated silicon photonics “, OSI-ISO 2018, International Symposium on Optics, IIT Kanpur, 19-22 September 2018.

B.K. Das, “Thermo-Optically Tunable Silicon Photonics Devices”, Invited Talk , ICMAP-2018, IIT Dhanbad, 9-11 February 2018.

B.K. Das, “Silicon Photonics Devices with Ultra-Broad Optical Bandwidth”, IEEE WRAP-2017, Hyderabad, India, 18-19 December, 2017.

B.K. Das, “Silicon Photonics: Technology and Applications”, ICAOP-2017 (41st OSI), Hisar, India, 23-26 November 2017.

Sumi R, P. Sah, and B.K. Das, “Integrated 1D Photonic Crystal Devices with SOI Waveguides”, Symposium on Photonic Crystal: 30 Years of Photonic Crystals – the Indian Scenario, IIT Kanpur, 21-23 September 2017 .

B.K. Das, R.K. Gupta, P. Sah, and S. Chandran, “Novel Wavelength Filter Devices in SOI for Optical Interconnect Applications”, ICMAT-2017, Suntec Singapore,18-23 June 2017.

B.K. Das, S. Chandran, P. Sah, and R.K. Gupta, “Novel wavelength filter devices in SOI for sensing applications”, Invited Talk, 13th International Conference on Fibre Optics and Photonics, IIT Kanpur, India, 4-8 December 2016 .

B.K. Das, “Active Phase-Shifters for Silicon Photonics”, Frontier in Light Matter Interaction (FiLMI – 2016), IIT Ropar, March 4-6, 2016.

B.K. Das, “MIMO Platform for Silicon Photonics”, 2nd International Conference on Emerging Technologies : Micro to Nano (ETMN 2015), Jaipur, India (24-15 October 2015).

B.K. Das, “Compact Wavelength-Selective Switch Circuit for Integrated Optical Interconnect”, Invited talk, 12th International Conference on Fibre Optics and Photonics, Kharagpur, India (13-16 December 2014).

B.K. Das, “Nanoscale Tolerance for Silicon Optical Interconnect Devices”, TU9-IIT Mandi Collaborative Workshop on Emerging Semiconductor Technologies, 26-27 September 2014.

B.K. Das, “Optical Interconnect Devices in SOI Platform – Past, Present and The Future”, PAOMP 2014, Bhubaneswar, 26-28 March, 2014.

B.K. Das, “Silicon Photonics: Monolithic Integration of Micron to Sub-micron Waveguide Devices”, Focused Discussion Meeting on Metamaterials and Photonics Nanostructures, IIT Kanpur, India, 16 – 17 Aug, 2013.

B.K. Das, S. Chandran and U. Karthik, “Silicon Photonics and Optical interconnect Technology”, Invited talk, ICOE – International Conference on Optical Engineering 2012,VTU, Belgaum, India ,26-28 July 2012.

B.K. Das, “Prospect of Silicon Photonics without CMOS Technology”, Annual Photonics Workshop, CUSAT, Kochi, India,27 – 28 Feb, 2012.

B.K. Das, S. Chandran and U. Karthik, “Research Advances in SOI Based Waveguide Sensors”, IConTOP – Trends in Optics and Photonics II, Kolkatta, India,7-9 December 2011.

B.K. Das, Sujith C., G.R. Bhatt, U.Karthik and R. Sharma, “Silicon Photonics in SOI Platform: Problems with Waveguide dispersion and Birefringence Effects”, FOP 11 – Frontiers in Optics and Photonics, XXXVI OSI Symposium, New Delhi, India, 3-5 December 2011.

B.K. Das, “Advances in Silicon Photonics Research: The World Scenario and IIT Madras,” ICCCD, Kharagpur, India 10 – 12, December 2010.

B.K. Das, “Integrated Optical Devices for Sensor Applications,” Workshop on Applications of Lasers in Sensing and Mesurements, Chennai, India, July 14 – 19, 2008.

Ankan Gayen, Nagarajan Nallusamy, Goutham Ezhilarasu, Shamsul Hassan, Vinoth Subramanian, Arnab Goswami and Bijoy Krishna Das, “System and method for attaching optical fiber array modules to photonic chips”, Application No. 202341077068, Dated 10-11-2023.

Pratyasha Priyadarshini, Arnab Goswami and Bijoy Krishna Das, “ A system and method for anultra-compact DBR cavity design for photonics technology applications”, Application No. 202241075651, Dated 26-12-2022.

Sujith Chandran, Subramanian Meenatchi Sundaram and Bijoy Krishna Das, “Method and apparatus for modifying dimensions of a waveguide”, Indian Patent No. 469080 (Published on 23-07-2015), US Patent No. US10168479B2 (Published on 01-01-2019) https://patents.google.com/patent/US10168479B2/en

Parimal Sah and Bijoy Krishna Das, “Design and implementation of an integrated optical razor-edge filter in silicon-on-insulator”, Patent No. IN201641031641A, Published on 23-03-2018.