P. 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 (Paper 8629-33)

U. 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 (Paper 8629-35)

H. 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 (Paper 8629-16)

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

S. Chandran, B.K. Das, "Tapering and Size Reduction of Single-mode Silicon Waveguides by maskless RIE", OECC 2012 - OptoElectronics Communication Conference, Bexco, Busan Korea, July 02-06, 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 Dec, 2011 (Invited talk).

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 Dec, 2011 (Invited talk).

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, Aprill 18-20, 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, December 12 - 15, 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, December 12 - 15, 2010.

S. 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, December 12 - 15, 2010.

B.K. Das, "Advances in Silicon Photonics Research: The World Scenario and IIT Madras," ICCCD, Kharagpur, India, December 10 - 12, 2010 (Invited Talk).

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, April 12 - 16, 2010.

J. P. George, A. Manjusha, and B. K. Das, "Silicon Nitride ARC for SOI Integrated Optical Devices," IWPSD-2009 XV^th International Workshop on Physics of Semiconductor Devices, New Delhi, India, December 15 - 19, 2009.

K. 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, October 30 - November 1, 2009.

R. Navalakhe, N. Dasgupta, and B.K. Das, "Fabrication and Characterization of Single-Mode Optical Waveguide in Silicon-On-Insulator," Photonics-2008: International Conference on Fiber Optics and Photonics, December 13 - 17, New Delhi, India, 2008.

S. Pal, A.K. Sahoo, and B.K. Das, "Experimental Studies on Swelling and Surface Roughness Dependent Guiding Properties of APE:LiNbO₃ Channel Waveguides," Photonics-2008: International Conference on Fiber Optics and Photonics, New Delhi, India, December 13 - 17, 2008.

R. Navalakhe, N. Dasgupta, and B.K. Das, "Design of Low-loss Compact 90^o Bend Optical Waveguide for Photonic Circuit Applications in SOI Platform," IEEE Region 10 Third International Conference on Industrial and Information Systems, Kharagpur, India, December 8 - 10, 2008.

B.K. Das, "Prospect of Silicon Photonics without CMOS Technology", Annual Photonics Workshop, CUSAT, Kochi, India, 27 - 28 Feb, 2012 (Invited Talk).

B.K. Das, "Integrated Optical Devices for Sensor Applications," [Invited Talk] Workshop on Applications of Lasers in Sensing and Mesurements, Chennai, India, July 14 - 19, 2008.

B.K. Das and W. Sohler, "Integrated Optical Highly Coherent Light Sources with Photorefractive Gratings," [Invited Talk] Workshop on Physics and Technology of All Optical Communication Components and Devices, Kharagpur, India, October 11 - 16, 2007.