Niloy Choudhury Email & Phone Number

Greater Boston Area

Greater Boston Area

Resident at JLABS@M2D2Helped Raised $250k Accepted to Petri (petri.bio) Cohort I

Greater Boston Area

Greater Boston Area

Development of new product concept involving innovative sensing solutions to solve technological needs in a wide range of industries, from consumer health to agro-business. Adapt at developing technical solutions while considering the business needs. Deep expertise in optical and acoustic sensing, medical imaging, algorithm development, leading and delivering multi-disciplinary technical solutions.

Niskayuna, Ny

• Co-wrote and won an ARPA-e proposal to develop a distributed gas sensor using hollow-core fiber. Originator of ideas about distributed sensing, designed and performed experiments to meet specific quarterly tollgates, wrote data acquisition software, collected data and performed signal analysis. • Performed experiments to detect liquid leaks using fiber-optic distributed acoustic and temperature sensors. Led the signal processing effort to take the demodulated sensor output to create an acoustic energy value that can be correlated to leak condition.• Proposed and led the development of UAV based stand-off gas sensor using TDLAS. Designed the system, created the algorithm to measure gas concentration from photocurrent, and created algorithm to predict leak location from the obtained gas concentration map. • Co-developed harsh environment temperature sensor using multi-color pyrometry. Developed detailed model of the system, designed the optical system, developed calibration method, wrote technical specs and interacted with vendors. • Led development of temperature sensor using TDLAS for stand-off temperature sensing of inlet air of turbines. • Co-developed system to measure dissolved gas concentration in a liquid using photo-acoustic signal.• Developed a regression analysis based model to locate gas leak and predict leak rate from an array of ground based sensors.• Leading multidisciplinary team, scoping, budgeting, planning deliverables, determining tollgates, planning and obtaining resources from management, presenting to upper management.• Led a group of technical experts in various fields through brain storming and failure analysis to provide reports to the customer about the state of the art and detailed next course of action. This resulted in improved temperature sensing which could result in faster cycle of steam turbineoperation leading to saving for power producers.• Co-authored more than 10 papers for GE’s internal publication repository.

Houghton, Michigan

• Established a research program on non-invasive transfection and detection of optogenetic activation of cells through a collaborative effort between MTU and UT Arlington.• Taught and co-developed course on biomedical instrumentation for undergraduate biomedical engineers.

• Collaborated with dermatologists, cardiologists, and otolaryngologists to develop research projects. • Co-invented and led the development of an imaging system with 100MHz frame rate. Co-originator of the idea, designed and assembled the optical system, wrote the data-acquisition and display software, designed and performed proof of concept experiments. Co-inventor in one filed patent application.• Designed and developed optical hardware, software and theoretical model to measure sub-nanometer motion using the TD-OCT system. Using this device better understanding of hearing mechanism is being made, one of which has led to a publication in “Nature Neuroscience”.• Wrote program to automatically measure epi-dermal thickness of mice from the images obtained using the TD-OCT system, then collect the data and perform statistical analysis to study disease pathology.• Designed and developed a 3-D optical imaging system using FD-OCT. Designed the optical system; developed data acquisition software, and the image processing software for the system. The system is currently being used to measure micro-circulation in cochlea.• Designed and developed a 3-D two-photon microscope to image fluorescence from biological tissues with micron resolutions.• Designed and developed a hyper-spectral camera to image skin and developed the light transport model, using monte-carlo simulation. Using regression analysis and fitting the model to the measured spectra skin properties were acquired for thousands of subject. Performed statistical analysis to separate population of data based on different selection criteria.• Consulted and worked with clinicians in the design and development of an optical probe to measure distance in breast tissue to help guide breast surgery with OHSU’s partner hospital.

Portland, Oregon Area

• Interacted with both vendors and customers, such as, CISCO systems, Nortel Networks, etc., to solve, ask and answer questions.• Wrote white papers on the effects of dispersion, reflection, mode-partition noise, chirp etc on the performance of optical sub-systems, which were forwarded to the customers on occasions. • Developed an electrical model of the VCSEL using SPICE software that can be integrated with electrical model of the laser driver so that a driver which is best suited for our laser can be designed.• Performed experiments to verify the working of the model as well as predict the performance of the laser under different drive condition using the laser model. • Planned and designed the optical tests for engineering design verification (EDV) for 10Gb/s transmitters and receivers (TOSA/ROSA) for various reaches (2km to 80Km) for both datacom and telecom.• Performed detail evaluation of electro-optic components used (Optical transmitters, Optical receivers, electrical Mux/Demux, ATMEL micro-processor etc) in our 10Gb/s transmitters and receivers. • Designed the temperature control loop for our X2/Xenpak transmitter to ensure performance over the prescribed temperature range. • Designed and built prototype system for testing 10Gbps receiver modules in production line.

Storrs, Connecticut

• Developed 80Gb/s Time Division Multiplexed (TDM) optical communications system and used a novel optical arrangement to de-multiplex the received signal.• Assembled and tested various optical transmission systems.• Generated and stabilized ultra-fast pulses (>100GHz) using fiber laser.• Measured the chirp and dispersion of DFB laser and fiber, respectively.• Studied Gain, Alpha Factor, Relaxation Frequency, Relative-Intensity Noise (RIN) in Modulation Doped Quantum Well Lasers.• Measured and Analyzed, alpha-factor, Relative Intensity Noise (RIN) in Electro-absorption Modulated Lasers (EML).

Ph.D., Physics

Activities and Societies: President and a founding member of Tarang, an organization for promoting South Asian culture in the community..

M.Sc., Physics

B.Sc., Physics

Activities and Societies: Class representative to the Student Union. An organizer of Tarana, the annual cultural festival. Played soccer.