NIT Warangal

Information

Room No: PH307 +91-870-2462579 sroy@nitw.ac.in Bio Sketch

Key Notes

Journal(s): 17
Conference(s): 10
Book Chapter(s): 1
PhD: Current - 2 Awarded - 5
PDF: Guided - 1

28

PUBLICATIONS

7

DOCTORAL STUDENTS

3

PROJECTS

Research Areas

Fiber Optic Sensors

Nonlinear Optics

Optical System & Illumination Design

Optical waveguides

Photonic Simulations

EDUCATION QUALIFICATION

Degree	Institute	Year
Doctor of Philosophy	IIT Kharagpur	2010
Master of Science	North Bengal University	2004

COURSES HANDLED

Course	L-T-P	Credit	Degree Level
Illuminations and Lighting Systems(PH6324)	3-0-0	3	PG
Optical Sensors(PH17021)	3-0-2	3	UG
Optoelectronic Sensing and MOEMS(PH6301)	3-0-0	3	PG
Engineering Physics(PH1161)	3-0-2	4	UG
Physics for Mechanical Engineering(PH181)	2-0-0	2	UG
Optical System Design(PH5351)	3-0-0	3	PG
Non Linear Optics and Devices(PH5268)	3-0-0	3	PG
Advanced Optical System Design(PH6314)	3-0-0	3	PG
Lasers in Manufacturing Technology(PH5121)	3-0-0	3	PG
Fourier Optics and Holography(PH5353)	3-0-0	3	PG
Quantum Optics(PH447)	3-0-0	3	UG

RESEARCH IDs

PUBLICATIONS

Journal(s)

IEEE Sensors Reviews, By K Dey, A Majee, S Roy, IEEE Sensors Reviews, 2025., IEEE, Interrogation-Based Fiber Optic Sensors: A Comprehensive Review of Techniques, Trends, and Applications, vol.2, pp.589 - 608, 2025

Exploration of Assembly-Free Fabricated Single-Multi-Single Mode and Multi-Single-Multi Mode Fiber Structures Exhibiting Ultra High Sensitivities”, By K Dey, A Majee, S Roy, , , Jan 2025., ELSEVIER, Chinese Journal of Physics, vol.95, pp.219-230, 2025

Analyzing global parameters of tunable vector vortices generated via conjugate mode interference, By Hari Krishna Chowduri, N Vangety, A Majee, IV Sankar, S Roy, ,” 2025., ELSEVIER, Optik , vol.327, , pp.172290, 2025

Learning-enabled recognition of LG beams from multimode fiber specklegrams, By N Vangety, PM Pooja, A Majee, S Roy, Elsevier, Results in Optics, vol., pp., 2024

Analyzing fiber specklegrams for speed and weight recognition of toy model vehicle using deep learning method, By V. Nikhil, A Majee, and S Roy, ELSEVIER, Optical Fiber Technology, vol.90, pp.104109, 2024

Demonstration of a fast-training feed-forward machine learning algorithm for studying key optical properties of FBG and predicting precisely the output spectrum, By Koustav Dey, V Nikhil, PR Chaudhuri, Sourabh Roy, Springer, Optical and Quantum Electronics , vol., pp., 2023

Detailed investigation of spectral properties of SMS Fiber Segment and its sensing performance under varying multimode fiber lengths, By Koustav Dey, Sourabh Roy , Pergamon, Infrared Physics and Technology , vol., pp., 2023

Transfer learning convolutional neural network for weight classification in a plastic optical fiber,”, By N Vangety, K Dey, S Roy, , De Gruyter, Journal of Optical Communications, vol., pp., 2023

Analysing group indices and dispersion characteristics of engineered photonic crystal waveguides using artificial neural network, By VDR Pavan, V Nikhil, K Dey, B Umamaheswara Sharma, S Roy, “, Springer India, Journal of Optics, vol., pp., 2023

Machine learning approach with higher accuracy for simultaneous measurement of the dual parameter by MSM fiber structure, By Kousrav Dey, V Nikhil, Sourabh Roy, Elsevier, Measurement , vol., pp., 2023

Weight-location recognition in a plastic optical fiber using a convolutional neural network, By Nikhil Vangety, Koustav Dey, Sourabh Roy, Elsevier, Optical Fiber Technology, vol., pp., 2023

Diffuse Reflectance Illumination Module Improvements in Near-Infrared Spectrometer for Heterogeneous Sample Analysis, By Umachandi M, SRoy, Ramesh D, IEEE, IEEE Access , vol., pp., 2022

Analyzing specklegrams of plastic optical fiber using convolutional neural network for weight recognition, By N Vangety, K Dey, SK Ghosh, Sourabh Roy, SPIE, Optical Engineering, vol., pp., 2022

Analyzing spectral properties and sensing performance of multi-single-multi mode fiber combination, By Koustav Dey, Sourabh Roy, IOP Publishing, Physica Scripta , vol., pp., 2022

Machine learning approach for simultaneous measurement of strain and temperature using FBG sensor,” , By Koustav Dey, Nikhil Vangety, Sourabh Roy , Elsevier, Sensors and Actuators: A Physical, vol., pp., 2021

High-Resolution All-Optical Imaging of Multimode Profiles in a Saturated Absorption Medium, By Onkar Nath Verma and Sourabh Roy, IEEE, IEEE Journal of Quantum Electronics, vol., pp., 2019

Analyzing characteristics of spiral vector beams generated by mixing of orthogonal LP11 modes in a few-mode optical fiber , By C. Hari Krishna & Sourabh Roy, Optica, Applied Optics, vol., pp., 2018

Conference(s)

Examine the self-imaging phenomenon within a single-multi-single mode fiber structure By K Dey, A Majee, D. Dinakar, S Roy, Optic 2023, 2023

Speckle pattern-based classification of different polarized LG beams using machine learning By V Nikhil, Sourabh Roy, Optic 2023, 2023

Comparison in sensing performance between single-multi-single mode and multi-single-multi mode fiber structure By K Dey, A Majee, S Roy, Optica Sensing Congress, 2023

Analysing Weighted Composite Vortex Beams By Pooja Pm, V Nikhil, Sourabh Roy, Photonics 2023, 2023

A machine learning approach for simultaneous measurement of temperature and strain using MSM By K Dey, V Nikhil, A Majee, S Roy, JSAP-Optica Joint Symposia, 2022

Simultaneous strain-temperature analysis by machine learning assisted FBG sensor By Koustav Dey, V. Nikhil, and S. Roy, ,” , CLEO (Applications and Technology), 2022, 2022

Analysis of the optical properties of a fiber Bragg grating using machine learning approach By Koustav Dey, V. Nikhil, S. Choudhary and S. Roy, IEEE Photonics Conference (IPC), 2021

Multimode fiber length dependence on spectral properties and sensitivity of single-multi-single mode (SMS) fiber combination By Koustav Dey, S. Choudhary, D. Dinakar and S. Roy, IEEE Photonics Conference (IPC), 2021

Machine learning approach to predict the output spectrum of different types of FBGs By 6. Koustav Dey, V Nikhil and Sourabh Roy, “” JSAP-OSA Joint Symposia 2021, 1-2, 2021, JSAP-OSA Joint Symposia 2021, 2021

Quality Factor Assessment of a Laser speckle pattern for Stress sensing in a Statistical Modal Sensors By N. Vangety, Koustav Dey and S. Roy, IEEE Asian Conference on Innovation in Technology (ASIANCON), 2021

Book Chapter(s)

AI-Assisted Fiber Optic Sensors for Simultaneous Measurement By Koustav Dey, V Nikhil, Sourabh Roy in Generative AI for Photonic Sensing, Springer Nature Singapore, ebook, 2025

PROJECT / CONSULTANCY

Cryo Temperature Measurement using Fiber based sensors

Role: Principal Investigator
Type: Research
Sponsor: ISRO
Project Cost (INR): 3000000
Date of Commencement: 01-05-2025
Duration: 23 Months
Status: Ongoing

Stable Generation of Optical Vortex Beams using Long Period Grating inscribed Few-Mode Optical Fiber

Role: Principal Investigator
Type: Research
Sponsor: SERB
Project Cost (INR): 3900000
Date of Commencement: 04-01-2020 Date of Completion: 08-03-2023
Duration: 38 Months
Status: Completed

Development of Distributed Photonic Sensor for Simultaneous and Real-time Measurements of Strain and Temperature in Fusion Reactor Relevant Applications

Role: Principal Investigator
Type: Research
Sponsor: BRNS
Project Cost (INR): 2900000
Date of Commencement: 03-01-2017 Date of Completion: 31-03-2020
Duration: 38 Months
Status: Completed

RESEARCH FELLOWS / PhD STUDENTS

Current PhD Students

Anirban Majee

Area of Research: Development of Fiber Optic Cascade device

Lubna Khan Hanif

Area of Research: Polymer Physics

Previous PhD Students

Nikhil Vangeti (2024)

Area of Research: Deep Learning analysis on Fiber Optic Sensor

L Uma Chandi (2023)

Area of Research: Development of Optical System in NIRS

Koustav Dey (2022)

Area of Research: Development and analysis of Fiber Optic Sensors

Vadapalli Durga Rama Pavan (2021)

Area of Research: Dispersion Engineering in Photonic Crystal Waveguide

Hari Krishna Chowduri (2019)

Area of Research: Vector vortex beam generation using few mode optical fiber

PDF Post-Doctoral Fellows

Dr. Onkar Nath Verma

Feb 2017 → Mar 2019

Area of Research: Nonlinear Optics, Electromagnetically Induced Transparency

CONFERENCE / WORKSHOP / SYMPOSIUM / SHORT TERM COURSE / FACULTY DEVELOPMENT PROGRAMME

AWARDS AND ACCOLADES

ADDITIONAL RESPONSIBILITIES

Last updated on November 27, 2025

Prof. Sourabh Roy

Professor

Department of Physics