Faculty details

Prof.Sanjeev Kumar Raghuwanshi

Designation: Professor

Department: Electronics Engineering

Email: sanjeevrus77[at]iitism[dot]ac[dot]in

Contact Number:

Personal Page: Click Here

Research Interest: Numerical Method Of Optical Waveguides, Optical Sensor, Microwave Photonics, Optical Fiber Communication, Plasmonics Waveguide, Specality Of Optica Fibre

Teaching

Teaching 

As a Professor in the Department of Electronics Engineering at IIT (ISM) Dhanbad, my teaching expertise spans a wide range of subjects in the fields of Optical Communication, Microwave Photonics, and Advanced Signal Processing. My teaching methodology emphasizes conceptual clarity, industry relevance, and research-driven learning.

1. Core Teaching Areas

I have extensive teaching experience in the following subjects:

A. Optical Communication & Photonics

  1. Optical Communication Systems
    • Optical fiber transmission principles
    • Optical sources and detectors
    • Optical link design and performance evaluation
    • Dispersion and nonlinearity effects in fiber-optic systems
  2. Photonic Integrated Circuits (PICs)
    • Fundamentals of photonic circuits
    • Design and simulation of waveguide structures
    • Applications of integrated optics in communication and sensing
  3. Fiber Optic Sensors
    • Fiber Bragg gratings (FBGs) and their applications
    • Surface plasmon resonance (SPR) based optical sensors
    • Biomedical and environmental sensing using fiber-optic technology

B. Microwave Photonics & RF Systems

  1. Microwave Photonics
    • Fundamentals of microwave photonic signal processing
    • Photonic-assisted radar and beamforming systems
    • Design of photonic microwave filters and delay lines
  2. Optoelectronic Oscillators (OEOs) & Microwave Signal Generation
    • Optical generation of RF and microwave signals
    • Phase noise modeling in OEOs
    • High-Q resonator-based optoelectronic oscillators
  3. Antenna and Wave Propagation
    • Fundamentals of electromagnetic wave propagation
    • Microstrip and metamaterial-based antennas
    • Photonic-assisted antenna beamforming techniques

C. Signal Processing & Computational Methods

  1. Digital Signal Processing (DSP)
    • Time and frequency domain signal analysis
    • Filter design and Fourier analysis
    • DSP applications in optical and RF communication
  2. Computational Electromagnetics & Numerical Methods
    • Finite element method (FEM) and finite difference time domain (FDTD)
    • Analysis of optical waveguides using numerical techniques
    • Simulation of photonic structures using COMSOL and MATLAB

2. Teaching Philosophy & Pedagogy

  • Concept-Based Learning
    • I focus on strengthening fundamental concepts before moving to advanced topics.
    • I integrate mathematical derivations with practical applications.
  • Research-Driven Teaching
    • Course material is continuously updated based on recent advancements in optical and microwave photonics.
    • Students are encouraged to participate in research projects and publish their findings.
  • Industry-Oriented Approach
    • I incorporate case studies from leading industries like ISRO, DRDO, and Nokia Bell Labs.
    • Students gain hands-on experience with software tools such as MATLAB, Opti-System, CST Microwave Studio, and COMSOL Multiphysics.
  • Innovative Teaching Methods
    • Use of Virtual Labs for optical experiments.
    • Live simulations of photonic circuits and waveguides using software tools.
    • Flipped Classroom Model, where students explore a topic before class and discuss applications in class.

3. Course Development & Curriculum Enhancement

  • Designed and introduced a new elective course on Microwave Photonics at IIT (ISM) Dhanbad.
  • Developed laboratory experiments for optical fiber communication and photonic circuits.
  • Organized faculty development programs and short-term courses on Recent Trends in Lightwave Technology and Role of Optical Sensors in Biomedical Applications.

4. Laboratory & Hands-on Training

  • Conduct hands-on training on fiber-optic communication systems and microwave photonic devices.
  • Developed a state-of-the-art photonics research lab with advanced simulation and experimental facilities.
  • Teach students to work with high-speed oscilloscopes, spectrum analyzers, and optical network analyzers.

Academics

Educational Qualifications

I have pursued my academic journey with a strong foundation in Electronics and Communication, specializing in Optical Fiber Communication. My academic credentials are as follows:

Degree

Specialization

Institution

Year of Joining

Year of Completion

Percentage/CGPA

B.E. (Bachelor of Engineering)

Electronics & Instrumentation Engineering

Shri Govindram Seksaria Institute of Technology and Science (SGSITS), Indore (An Autonomous Institute of MP Govt.)

1995

1999

66.92%

M.Tech. (Master of Technology)

Solid State Technology

Indian Institute of Technology (IIT) Kharagpur, India

2000

2002

7.83/10 CGPA (Availed MHRD Scholarship)

Ph.D. (Full-Time)

Optical Fiber Communication (Electrical Communication Engineering Department)

Indian Institute of Science (IISc) Bangalore, India

2005

2008

6.3/8 CGPA (Availed MHRD Scholarship)

Post-Doctorate Fellow (On Deputation Leave)

Instrumentation and Sensor Technology (School of Engineering and Mathematical Sciences)

City University, London

2014

2015

Funded by Erasmus Mundus European Project (€1800/month)

Ph.D. Research Work

  • Thesis Title: Analytical and Numerical Study of Propagation in Optical Waveguides and Devices in Linear and Nonlinear Domain
  • Research Area: Optical Fiber Communication
  • Supervisor: Dr. Srinivas Talabattula, Associate Professor, IISc Bangalore
  • Duration: 3 Years (2005–2008)

My research was focused on analyzing optical waveguides and devices under both linear and nonlinear domains to improve Dense Wavelength Division Multiplexing (DWDM) optical communication systems.

Research Interests

My research primarily focuses on photonics and optical communication systems, with emphasis on:

  • Design and Analysis of Optical Waveguides and Devices
  • Pulse Propagation in Optical Fiber Systems
  • DWDM Optical Communication and Raman Amplification
  • Nonlinear Optical Effects in Optical Fiber
  • Photonics Crystal Fibers (PCFs) and Plasmonic Waveguides
  • Meta-Material Structures and Bragg Fiber Analysis
  • Finite Element Analysis of MEMS/MOEMS-based Optical Devices
  • Development of Optical Sensors using Fiber Bragg Gratings (FBG) and Surface Plasmon Resonance (SPR)

Position

Positions

 

1.  Professor

  • Institution: Indian Institute of Technology (Indian School of Mines) Dhanbad, India
  • Duration: Feb 2025  Present
  • Key Responsibilities:
    • Teaching and research in Optical Communication, Microwave Photonics, and Fiber Optic Sensors.
    • Supervising Ph.D. and M.Tech. students in the areas of Photonics, Integrated Optics, and Microwave Photonic Signal Processing.
    • Leading funded research projects from agencies like ISRO, DRDO, and DST-SERB.
    • Publishing high-impact SCI-indexed research papers and patents.
    • Organizing short-term courses, workshops, and faculty development programs.
    • Developing collaborations with national and international research institutions.

2. Associate Professor

  • Institution: Indian Institute of Technology (Indian School of Mines) Dhanbad, India
  • Duration: June 2019 – Feb 2025
  • Key Responsibilities:
    • Teaching and research in Optical Communication, Microwave Photonics, and Fiber Optic Sensors.
    • Supervising Ph.D. and M.Tech. students in the areas of Photonics, Integrated Optics, and Microwave Photonic Signal Processing.
    • Leading funded research projects from agencies like ISRO, DRDO, and DST-SERB.
    • Publishing high-impact SCI-indexed research papers and patents.
    • Organizing short-term courses, workshops, and faculty development programs.
    • Developing collaborations with national and international research institutions.

3. Assistant Professor

  • Institution: Indian Institute of Technology (Indian School of Mines) Dhanbad, India
  • Duration: March 2010 – June 2019
  • Key Responsibilities:
    • Conducted undergraduate and postgraduate courses in Optoelectronics, Optical Waveguides, and Digital Signal Processing.
    • Guided multiple Ph.D., M.Tech., and B.Tech. students in research projects.
    • Led externally funded research projects on Microwave Photonics, Fiber Bragg Grating Sensors, and Optoelectronic Oscillators.
    • Established state-of-the-art laboratories in Optical Fiber Communication and Microwave Photonics.

4. Postdoctoral Fellow (On Deputation Leave)

  • Institution: City University, London, UK
  • Duration: October 2014 – April 2015
  • Key Responsibilities:
    • Worked on Instrumentation and Sensor Technology.
    • Developed models for Photonic Integrated Circuits (PICs) and Optical Sensors.
    • Conducted research on MEMS/MOEMS-based optical devices.
    • Funded by the Erasmus Mundus European Project (1800 Euro per month scholarship).

5. Visiting Scientist (On Deputation Leave)

  • Institution: National United University, Mialoi, Taipei, Taiwan
  • Duration: June 2014 – July 2014
  • Key Responsibilities:
    • Engaged in research on Optical Waveguides and Plasmonic Sensors.
    • Funded by National United University (NUU) Taiwan (6000 NTD academic visit grant).

6. Assistant Professor

  • Institution: Mody Institute of Technology and Science, Lakshmangarh, Rajasthan
  • Duration: December 2009 – March 2010
  • Key Responsibilities:
    • Taught Electronics and Communication Engineering courses.
    • Developed course curriculum and conducted laboratory sessions.

7. Assistant Professor

  • Institution: Sir Padampat Singhania University, Udaipur, Rajasthan
  • Duration: March 2009 – November 2009
  • Key Responsibilities:
    • Designed and implemented course modules in Digital Electronics and Optical Communication.
    • Guided undergraduate projects on RF and Optical Waveguide design.

8. Lecturer

  • Institution: Asansol Engineering College, West Bengal
  • Duration: November 2008 – May 2009
  • Key Responsibilities:
    • Delivered lectures on Electronic Devices, Optical Fiber Communication, and Signal Processing.
    • Conducted student training programs on MATLAB and Optical Simulations.

9. Research Scholar (Full-Time, Ph.D.)

  • Institution: Indian Institute of Science (IISc), Bangalore
  • Duration: January 2005 – July 2008
  • Key Responsibilities:
    • Conducted Ph.D. research on Optical Fiber Communication.
    • Developed analytical and numerical models for optical waveguide structures.
    • Worked on DWDM Raman Amplification Systems and Fiber Bragg Grating Sensors.

10. Research Engineer

  • Institution: Indian Institute of Technology (IIT) Bombay
  • Duration: January 2002 – October 2004
  • Key Responsibilities:
    • Worked on Microwave and Optical Communication Systems.
    • Conducted experimental research on Photonic Signal Processing.

I have a rich academic and research experience of over 20 years in the fields of Optical Communication, Photonics, and Microwave Signal Processing. My contributions span teaching, research, funded projects, patents, and international collaborations. Currently, as an Associate Professor at IIT (ISM) Dhanbad, I continue to lead cutting-edge research in photonics, sensors, and microwave communication systems.

Awards and Honors

Awards & Honors

  1. Best Paper Award – IEEE Sensors Conference (2022)
    • Received the Best Paper Award for the research on "High-Sensitivity Fiber Bragg Grating Sensors for Biomedical Applications" at the IEEE Sensors Conference 2022.
    • The paper highlighted advancements in surface plasmon resonance (SPR) based fiber sensors for real-time health monitoring.
  2. Outstanding Researcher Award – IIT (ISM) Dhanbad (2021)
    • Honoured with the Outstanding Researcher Award by IIT (ISM) Dhanbad in recognition of significant contributions to the field of Optical Communication and Microwave Photonics.
    • This award was based on research impact, number of publications, patents, and funded research projects.
  3. Erasmus Mundus Postdoctoral Fellowship (2014)
    • Awarded the prestigious Erasmus Mundus Fellowship for Postdoctoral Research at City University, London (UK).
    • Conducted research on Instrumentation and Sensor Technology, focusing on MEMS-based optical sensors for industrial applications.
    • Received €1800 per month scholarship under the Erasmus Mundus European Project.
  4. MHRD Scholarship for M.Tech & Ph.D.
    • Secured MHRD (Ministry of Human Resource Development) Scholarship for both M.Tech. at IIT Kharagpur and Ph.D. at IISc Bangalore.
    • Fully funded research focused on Solid-State Technology and Optical Fiber Communication.
  5. Guest Scientist Award – National United University, Taiwan (2014)
    • Invited as a Visiting Scientist at National United University, Mialoi, Taipei, Taiwan under a funded academic visit program.
    • Received 6000 NTD (New Taiwan Dollars) for academic exchange and research collaboration on Photonic Integrated Circuits (PICs) and Optical Waveguide Design.
  6. Best Mentor Award – M.Tech. Thesis Supervision (2018, 2020)
    • Recognized for outstanding mentorship in guiding M.Tech. students in research projects related to Microwave Photonic Signal Processing.
    • Awarded by IIT (ISM) Dhanbad for successful supervision of 18 M.Tech. and 10 Ph.D. students.
  7. Editorial Board Member & Reviewer
    • Serves as an Editorial Board Member and Reviewer for reputed journals, including:
      • IEEE Sensors Journal
      • Journal of Lightwave Technology (JLT)
      • Optics and Laser Technology
    • Recognized multiple times as a Top Reviewer for IEEE and Elsevier journals.
  8. Invited Speaker & Keynote Lecturer
    • Delivered invited talks at IEEE Photonics Society Conferences, OSA (Optical Society of America), and SPIE Optics & Photonics Symposiums on Microwave Photonics and Optical Sensor Technologies.

These honors and awards highlight my contributions in optical communication, fiber-optic sensing, and microwave photonics, reinforcing my dedication to advancing cutting-edge research in the field.

Publications

Projects & Activities

Guidance