Dr. Bilas Chowdhury
Optical Engineer
SPIE Involvement:
Author
Area of Expertise:
Fiber Optics Communications , Acousto optics , Optronics devices , Lens design , Silicon Photonics , Modulator
Profile Summary

University of Maryland, College Park, MD Sep 19 - present
Postdoctoral Research Scientist, Laboratory for Physical Sciences
• Working on Spatial Domain Multiplexing and Orbital Angular Momentum
• Working on next generation optical communication technology
• Generating and detecting topological charge
Intel Corporation, Santa Clara, CA Jan 2018 - Aug 2018
Senior R&D Intern, Component Development Team, Silicon Photonics Products Division
• Tested high speed ring modulators and high speed photodetector for 400G next generation optical interconnect
• Modeled the behavior of optical modulators using MATLAB and Lumerical
• Performed low NA test for optical waveguide using beam profiler
• Analyzed and presented data to the component development teams
Finisar Corporation, Sunnyvale, CA May 2017 - Aug 2017
Intern, Optics Lab, Advanced Transceiver Engineering Group
• Built Automatic Testing Station (ATS) of 200G QSFP56 LR4 & FR4 using Python.
• Tested 5 corner sensitivity test of QSFP56 FR4
• Performed overload, SRS, stressed eye test for 100G QSFP28 & CFP2
• Tested optical and electrical loopback testing of QSFP56 & CFP8
Florida Institute of Technology, Melbourne, FL Aug 2011 - July 2019
Research Assistant, Optronics Laboratory
• Designed, built, tested and developed Multi-Tb/s optical communications systems using Spatial Domain Multiplexing (SDM) model employing NRZ & PAM4 modulation scheme using Optisystem and OptiBPM
• Optical design and lens modeling, optical bench testing using Zemax model
• Tested high speed omnidirectional free space optical (O-FSO) antenna
• Presented SDM based hybrid architecture working in conjunction with Orbital Angular Momentum (OAM) and Wavelength Division Multiplexing (WDM)
Florida Institute of Technology, Melbourne, FL Sep 2011 - May 2019
Teaching Assistant, Electrical and Computer Engineering
• Taught Circuits Theory (I & II), Electro-optics/ Lightwave Lab, Fiber Optics Comm
Publications (4)

SPIE Journal Paper | 8 August 2016
OE, Vol. 55, Issue 08, 086104, (August 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.8.086104
KEYWORDS: Wavelength division multiplexing, Optical fibers, Multiplexing, Telecommunications, Optical communications, Multimode fibers, Fiber optic communications, Silica, Channel projecting optics, Cladding

SPIE Journal Paper | 28 June 2016
OE, Vol. 55, Issue 06, 066124, (June 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.6.066124
KEYWORDS: Multiplexing, Optical fibers, Multimode fibers, Channel projecting optics, Fiber optic communications, Optical vortices, Telecommunications, Laser sources, Sensors, Optical engineering

Proceedings Article | 5 September 2014 Paper
Proceedings Volume 9202, 920214 (2014) https://doi.org/10.1117/12.2061148
KEYWORDS: Wavelength division multiplexing, Multiplexing, Optical fibers, Telecommunications, Cladding, Time division multiplexing, Optical communications, Fiber optic communications, Silica, Visible radiation

Proceedings Article | 5 September 2014 Paper
Proceedings Volume 9202, 92020U (2014) https://doi.org/10.1117/12.2061122
KEYWORDS: Optical fibers, Multiplexing, Wavelength division multiplexing, Laser sources, Wave propagation, Multimode fibers, Channel projecting optics, Spiral phase plates, Light, Optical vortices

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