Name Dr. Devnath Dhirhe
DesignationAssistant Professor
Highest Qualification M.Sc. (Electronics), ADSME, M.Phil (Physics), Ph.D. (Electronics and Electrical Engineering)
Total Citations87
Office Tel No. 02024304403
Mobile 02024304403

(Brief Description / Abstract) :

Dr. Dhirhe received his Ph.D. from the University of Glasgow, UK, in Monolithic Tunable Quantum Cascade Lasers. He is currently an Assistant Professor in the Department of Applied Physics, Defence Institute of Advanced Technology (D.U.). He has Regular and life membership of various national and international professional bodies.  His research interests are Mid-IR and THz Quantum Cascade Laser, Fiber Laser, Ultrafast fiber Laser, Laser Application’s, Fiber Optics Sensors, Tuneable Ring Lasers, Integrated Optics, and Si-Photonics. 


  • 2013. PhD
  • 1998. M.Sc
  • 1996. BSc

Professional Experience (Institution, Position and Period):

  • Assistant Professor, DIAT, 2014 to Till now
  • Assistant Professor, KNC, 2002 to 2013
  • Senior Research Fellow, 2007-2008
  • Assistant Professor, Govt. PG College, Korba, 1999 to 2002

Research Domains:

  • MiD-IR and THz Quantum Cascade Laser
  • Integrated Optics and Si-Photonics.
  • Ring Lasers
  • Fiber Laser
  • High-Speed Free-Space Optical Communication (New Area of Research)

Specific Projects:

  • LASTEC-DRDO CARS Project on Electrically Tubeanle Quantum Cascade Laser

  • SSPL-DRDO CARS Project on Design and Development of THz Quantum Cascade Laser

Research Collaborations:

  • Dr. G Unnikrishnan, IRDE-DRDO, Dehradun
  • Dr. Somna Mahajan, SSPL-DRDO, Delhi
  • Dr.  Ratnakar Pallai, University de Puerto Rico, USA
  • Dr. Thomas J Slight, CST Global, UK
  • Prof. Charlie N. Ironside, University of Curtin, Australia
  • Prof. Devid Hutchings, University of Glasgow, UK

Ph.D Thesis Supervision:

  • Arvindkumar Yelashetty “Propagation of Optical Coherence Through Various Linear Optical Systems”
  • Nitika Gupta “Investigation of Electro-Optical Properties of III-VI Quantum Dot Epitaxial Structure for High Power Quantum Dot Laser Application” Under submission

M.Tech. Dissertation Supervision:

In 2021

  •  “Study and Analysis of Infrared Thermographic Methods for Structural Health Monitoring using Non-contact Methods.”
  •  “Designing a Laser-Based Security System using Microcontroller with Immediate SMS, Alarm and Video Attention.”
  • Akshara V “Computer Communication using Free Space Network.”

In 2020

  •  “Design of 5GBPS MZM Drives using 0.18 µm CMOS Technology for PSK Modulation.”
  •  “Designing an Optical Fiber Link for Arrestor Barrier Connectivity with Software Control.”

In 2019

  •  “Laser-based Parameter Security System.”
  •  “Optical current sensor.”
  •  “Pulse Compression and Broadband Source Generation for Optical Coherence Tomography using Microstructured Optical Fiber.”
  •  “Ultrafast Fiber Source for Chirped Pulse Amplification at 1µm”
  •  “Photonics radar simulation and modeling.”

In 2018

  •  “Study on  Feasible Solutions to Prevent Failure of Laser Range Finder”
  •  “Study on frequent Failures of Laser Range Finder.”
  •  “Study & analysis of different Fiber optic sensor cables and configurations for the intrusion detection system.”
  •  “Design and Development of Fiber Optics Based Interferometer Techniques for Acoustic Signature Sensing”
  •  “Differential phase modulation (DPSK) for free-space-optical communication.”
  •  “Computational Imaging Technique for improving the performance of optical imaging system”
  •  “Design of Microbolometer Pixel”
  •  “Design and Development of the algorithm for Shack Hartmann wavefront sensor for adaptive optics applications”
  •  “Study & Design of Signal Processing Algorithm for Fiber Optic Sensors

In 2017

  •  “Designing & Analysis of High Power Semiconductor Laser Array Beam Combiner: MMI Coupler.”
  •  “Temperature Measurement of Laser Cavity through Holographic Interferometry.”
  •  “Stress Analysis of ERBIUM Doped Phosphate Glass”

In 2016

  •  “Simulating the DIRCM engagement system-level performance”
  •  “Trace Gas detection using IR QCL Photo Acoustic Spectroscopy”

Summer/Winter Internships From other institutions Supervision:

Other Supervision:

Research Publications from 2010 to 2020:

Books Total Journals Articles Articles published in SCOPUS / Web of Science Index Journals Books Chapter Articles published in the Conference Volumes Registered Patent
10 06

Research Publications:

Journal Articles:

In 2021

  • Impact of Built‐in Electric Field on the Emission Characteristics of InAs/GaAs Quantum Dot Laser Structure, N Gupta, P Mudi, A Yelashetty, TK Sharma and D Dhirhe, physica status solidi (b), 2100090, 2021, PP. 0370-1972 (

In 2020

  • Linear canonical transform as a tool to analyze coherence properties of electromagnetic beams propagating in a quadratic phase system, A Yelashetty, N Gupta, D Dhirhe, U Gopinathan, JOSA A 37 (8), 2020, 1350-1360 (DOI: 10.1364/JOSAA.395777)
  • Intermittent events due to spectral filtering induced multi-pulsing instability in a mode-locked fiber laser, BD Gupta, SD Chowdhury, D Dhirhe, M Pal, JOSA B 37 (8), 2020, 2278-2286 (DOI: 10.1364/JOSAB.396768)
  • Evolution of stokes parameters in quasi homogeneous electromagnetic sources in the far field, A Yelashetty, N Gupta, D Dhirhe, G Unnikrishnan, Optik 207, 2020, 163811 (DOI:  10.1016/j.ijleo.2019.163811)
  • Temperature-Independent Performance of an 8-Layer λ~ 1.3 μ m InAs/GaAs Quantum-Dot Laser, N Gupta, A Yelashetty, A Sharma, A Jain, U Gopinathan, D Dhirhe, Journal of Russian Laser Research, 1-8, 2020 (

In 2013

  • Active polarisation control of a quantum cascade laser using tuneable birefringence in waveguides, D Dhirhe, TJ Slight, BM Holmes, CN Ironside, Optics express 21 (20), 24267-24280 (DOI:10.1364/OE.21.024267)

In 2012

Book Chapters:

Conference Papers:

  • Pulse Compression at 1064 nm Using Air-Silica Nonlinear Microstructured Optical Fiber S Rajhans, S Das Choudhury, D Dhirhe, M Pal, D Ghosh, ICOL-2019: ICOL-2019: Proceedings of the International Conference on Optics and Electro-Optics, Dehradun, India, Springer,  PP. 173-176, 2021
  • Propagation of EM-Coherence Through Varying Lens Position Fractional Fourier Transform System, A Yelashetty, N Gupta, D Dhirhe, G Unnikrishnan, Frontiers in Optics, Optical Society of America,  FW1A. 3, 2020
  • Propagation of Stokes parameters in oceanic turbulence, A Yelashetty, N Gupta, D Dhirhe, G Unnikrishnan, Seventh International Conference on Optical and Photonic Engineering (icOPEN 2019), ISOP, Vol.11205, PP. 112050H, 2019
  • Broadband Source for Optical Coherence Tomography at 1064 nm Using Silica-based Microstructured Optical Fiber, S Rajhans, M Pal, D Dhirhe, SK Bhadra, D Ghosh, 2019 Workshop on Recent Advances in Photonics (WRAP), 1-3, 2019
  • Room temperature performance of InAs-GaAs quantum dot laser emitting at 1.3 µm, N Gupta, A Yalashetty, A Sharma, A Jain, D Dhirhe, Seventh International Conference on Optical and Photonic Engineering (icOPEN 2019), ISOP, Vol.11205, PP. 1120520, 2019
  • Wavelength tuning and polarisation control with an integrated tunable birefringent filter for quantum cascade lasers, D Dhirhe, TJ Slight, BM Holmes, DC Hutchings, CN Ironside, 2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC, IEEE, PP. 1-1 (2013)
  • Polarization control of a quantum cascade laser, D Dhirhe, TJ Slight, BM Holmes, DC Hutchings, CN Ironside, 2012 Conference on Lasers and Electro-Optics (CLEO), 1-2 (2012)


Research/Review Submitted/Under Review:

Any Publications Submitted/Under Review:

Invited Talks:


Awards/Scholastic Achievements:

Government Funded Projects:

  • Electrically Tubeanle Quantum Cascade Laser, Funded by: LASTEC-DRDO, Sanction Amount:2.96Cr, Tenure: 3 Years (From May 2020)
  • Design and Devlopment of THz Quantum Cascade Laser, Funded by: SSPL-DRDO, Sanction Amount:4.7 Cr, Tenure: 3 Years (From March 2021)

Any Other: