• B. E. (Electronics and Telecommunication Engineering), BPUT, 2004

• M. Tech. in Communication System Engineering, KIIT University, 2007

• PhD in Engineering, Jadavpur University, 2018

• Fiber and integrated optics

• Coding Theory and its application

• Advanced communication

Journal:

1. “Radial distribution of pump and signal intensities in step index EDFA for LP₁₁ mode in Kerr nonlinear condition” Biplab Kumar Ray, Angshuman Majumdar and Sankar Gangopadhyay, Journal of Optical Communications (Germany), (2022), DOI: https://doi.org/10.1515/joc-2022-0109

2. “Radial Differentiation of Pump and Signal Intensities in Trapezoidal index EDFA for LP₁₁ mode in Kerr nonlinear state” Biplab Kumar Ray, Angshuman Majumdar and Sankar Gangopadhyay, Journal of Electronics and Informatics, (2022), DOI: https://doi.org/10.36548/jei.2022.3.006

3. “An Accurate but Simple Method for Estimation of the Influence of Kerr Nonlinearity on the Far Field Pattern of LP₁₁ Mode in Dispersion-shifted and Dispersion-flattened Fibers” Kushal Roy, Angshuman Majumdar and Sankar Gangopadhyay, Journal of Optical Communications (Germany), (2022), DOI: https://doi.org/10.1515/joc-2022-0050

4. “Effect of Kerr Nonlinearity on Signal and Pump Intensities in EDFA comprising Single-Mode Step Index Fiber: Estimation by a Simple but Accurate Mathematical Formalism” Tilak Mukherjee, Angshuman Majumdar and Sankar Gangopadhyay, Results in Optics (Elsevier), (2022), 8 (2022) 100263.

5. “Influence of Kerr nonlinearity on single-mode dispersion-shifted and dispersion-flattened directional couplers: analysis by a simple but accurate method” Ramkrishna Rakshit, Angshuman Majumdar, Shubhendu Maiti and Sankar Gangopadhyay, Optical and Quantum Electronics (Springer), (2022) 54:118. DOI: https://doi.org/10.1007/s11082-021-03492-9

6. “Analysis of optical Kerr effect on effective core area and index of refraction in single-mode dispersion shifted and dispersion flattened fibers” Jayanta Aich, Angshuman Majumdar and Sankar Gangopadhyay, Journal of Optical Communications (Germany), (2021) DOI: https://doi.org/10.1515/joc-2021-0211

7. “Analysis of Kerr type nonlinear single-mode triangular index fiber directional coupler by a simple method” Biplab Kumar Ray, Angshuman Majumdar and Sankar Gangopadhyay, Optical Engineering (SPIE.USA),60 (2021) 086110.DOI: 10.1117/1.OE.60.8.086110

8. “Misalignment considerations in laser diode to single-mode graded index fiber coupling via upside down tapered parabolic microlens on the circular core fiber” Ramkrishna Rakshit, Angshuman Majumdar and Sankar Gangopadhyay, Optical Fiber Technology (Elsevier), 61 (2021) 102448. DOI: https://doi.org/10.1016/j.yofte.2020.102448.

9. “A simple but accurate method for prediction of splice loss in mono-mode dispersion shifted and dispersion flattened fibers in presence of Kerr nonlinearity” Ramkrishna Rakshit, Angshuman Majumdar and Sankar Gangopadhyay, Journal of Optical Communications (Germany), (2021) DOI: 10.1515/joc-2020-0259.

10. "Laser diode to single-mode graded index fiber coupling via cylindrical microlens on the fiber tip: Evaluation of coupling efficiency by ABCD matrix formalism" Kushal Roy, Angshuman Majumdar, Shubhendu Maiti and Sankar Gangopadhyay, Journal of Optical Communications (Germany), (2020) DOI: 10.1515/joc-2020-0234.

11. “Influence of Kerr Nonlinearity on Group Delay and Modal Dispersion Parameters of Single-Mode Graded Index Fibers: Evaluation by a Simple but Accurate Method” Tilak Mukherjee, Angshuman Majumdar and Sankar Gangopadhyay, Journal of Optical Communications (Germany), (2020) DOI: 10.1515/joc-2020-0192.

12. “Laser diode to single-mode triangular index fiber coupling via upside down tapered hyperbolic microlens on the fiber tip: Prediction of coupling efficiency by ABCD matrix formalism” Jayanta Aich, Angshuman Majumdar, Anup Kumar Maiti and Sankar Gangopadhyay, Optik (Elsevier), 222 (2020) 165276.

13. “A simple but accurate technique for study of single-mode Kerr type nonlinear dispersion-shifted and dispersion-flattened fibers” Biplab Kumar Ray, Angshuman Majumdar, Shubhendu Maiti and Sankar Gangopadhyay, Optik (Elsevier), 219 (2020), 165231.

14. “Correction of Non-linearity of load cell using adaptive technique with mathematical approximation” Ramkrishna Rakshit, Angshuman Majumdar and Rajesh Dey, International Journal of Recent Technology and Engineering, 9 (2020), pp. 1112-1115.

15. “Simple but Accurate Method for Estimation of the Effect of Kerr Nonlinearity on Confinement and Excitation of the Fundamental Mode in Single Mode Graded Index Fiber” Kushal Roy, Angshuman Majumdar and Sankar Gangopadhyay, Optik (Elsevier), 216 (2020), 164939.

16. “A simple but accurate formalism for study of single-mode graded index fiber directional coupler in presence of Kerr nonlinearity” Tilak Mukherjee, Suvendu Maiti, Angshuman Majumdar and Sankar Gangopadhyay, Optik (Elsevier), 213 (2020), 164772.

17. “Evaluation of Splice Loss of Single-Mode Graded Index Fiber in Presence of Kerr Nonlinearity”, Shubhendu Maiti, Angshuman Majumdar, Salil Kumar Biswas and Sankar Gangopadhyay, Optik (Elsevier), 127 (2020), 163962, DOI: 10.1016/j.ijleo.2019.163962

18. “A Novel and simple formalism for study of Effect of Kerr Nonlinearity on Petermann I and II spot sizes of Single-Mode- Graded Index Fiber”, Jayanta Aich, Anup Kumar Maiti, Angshuman Majumdar and Sankar Gangopadhyay, Journal of Optical Communications (Germany), DOI: 10.1515/JOC-2019-0167

19. “Laser diode to single-mode circular core parabolic index fiber coupling via upside down tapered hyperbolic micro lens on the tip of the fiber: Prediction of coupling optics by ABCD matrix formalism”, Angshuman Majumdar, Chintan kumar Mandal and Sankar Gangopadhyay, Journal of Optical Communications (Germany), DOI: 10.1515/JOC-2017-0040

20. “Accurate prediction of dimensionless vector and scalar propagation constants of single-mode graded index fiber in the low V region by a simple method”, Angshuman Majumdar, Chintan kumar Mandal and Sankar Gangopadhyay, International Journal of Photonics and Optical Technology, 3 (2017), pp. 25-29.

21. “A simple method for prediction of far-field pattern of mono-mode graded index fibers in the low region”, Angshuman Majumdar, Subhalaxmi Chakraborty and Sankar Gangopadhyay, Optik (Elsevier), 127 (2016), pp. 5295-5300.

22. “A simple method for prediction of effective core area and index of refraction of single-mode graded index fiber in the low V region”, Angshuman Majumdar, Satabdi Das and Sankar Gangopadhyay, Journal of Optical Communications (Germany), 35 (2014), pp. 269–274.

23. “A simple but accurate method for prediction of splice loss in single-mode dispersion shifted trapezoidal as well as dispersion flattened graded and step W fibers“, Subhalaxmi Chakraborty, Angshuman Majumdar,. and Sankar Gangopadhyay, Optik (Elsevier), 124 (2013), pp.6752-6756.

24. “Decimal sequence based imperceptible audio watermarking“, Chanchal Ghosh, and Angshuman Majumdar, International Journal of computer application, 47 (2012), pp.0975-888.

Conference:

1. “A STRAIGHTFORWARD PROCEDURE FOR PREDICTING SPLICE LOSS FOR THE FIRST MODE OF HIGHER ORDER OF A PARABOLIC PROFILE FIBER IN THE PRESENCE OF THIRD ORDER NONLINEARITY” Ramkrishna Rakshit, Angshuman Majumdar, International Conference on Power Electronics & Sustainable Development (ICPESD-2022), National Institute of Technology, Jamshedpur, Topics in Intelligent Computing and Industry Design (ICID) 3(2) (2022) 83-88, DOI: http://doi.org/10.26480/icpesd.02.2022.83.88

2.“AN EFFECTIVE METHOD FOR PREDICTION OF THE FIELD DISTRIBUTION OF LP11 MODE OF DISPERSION CONTROLLED FIBERS HAVING THIRD ORDER NONLINEARITY” Biplab Kumar Ray, Angshuman Majumdar, Sankar Gangopadhyay, International Conference on Power Electronics & Sustainable Development (ICPESD-2022), National Institute of Technology, Jamshedpur, Topics in Intelligent Computing and Industry Design (ICID) 3(3) (2022) 158-163, DOI: http://doi.org/10.26480/icpesd.03.2022.158.163

3. "Estimation of Far Field Pattern in Mono Mode Step Index Fiber in Presence of Kerr Nonlinearity by a simple Technique", Kushal Roy, Angshuman Majumdar, Sankar Gangopadhyay, VLSI DCS - 2020 (Accepeted).

4. "Effect of Kerr Nonlinearity on Dimensionless Scalar and Vector Propagation Constants of Single Mode Graded Index Fiber: Estimation by a Simple but Accurate Method", Tilak Mukherjee, Angshuman Majumdar, Sankar Gangopadhyay, VLSI DCS - 2020 (Accepted).

Book Chapters:

1. Mukherjee T., Majumdar A., Gangopadhyay S. (2022) Accurate Estimation of Dimensionless Vector and Scalar Propagation Constants for First Higher Order Mode of Kerr Type Nonlinear Graded Index Fiber by Simple Mathematical Formalism. Proceedings of the 3rd International Conference on Communication, Devices and Computing. Lecture Notes in Electrical Engineering, vol 851. pp 191-200. Springer, Singapore. https://doi.org/10.1007/978-981-16-9154-6_19

2. Aich J., Majumdar A., Gangopadhyay S. (2022) Accurate Prediction of Petermann I and II Spot Sizes of First Higher Order Mode for Kerr Type Nonlinear Graded Index Fiber by a Simple Method. Proceedings of the 3rd International Conference on Communication, Devices and Computing. Lecture Notes in Electrical Engineering, vol 851. pp 105-115. Springer, Singapore. https://doi.org/10.1007/978-981-16-9154-6_11

3. Roy K., Majumdar A., Gangopadhyay S. (2022) A Simple but Accurate Mathematical Formalism for Prediction of the Far Field Pattern of First Higher Order (LP₁₁) Mode in Kerr Type Nonlinear Step Index Optical Fiber. Proceedings of the 3rd International Conference on Communication, Devices and Computing. Lecture Notes in Electrical Engineering, vol 851. pp 169-178. Springer, Singapore. https://doi.org/10.1007/978-981-16-9154-6_17

4. Rakshit R., Majumdar A., Gangopadhyay S. (2022) A Simple Method for Accurate Prediction of Splice Loss for First Higher-Order Mode of Step-Index Fiber in Presence of Kerr Nonlinearity. Proceedings of the 3rd International Conference on Communication, Devices and Computing. Lecture Notes in Electrical Engineering, vol 851. pp 201-211. Springer, Singapore. https://doi.org/10.1007/978-981-16-9154-6_20

Book Publications:

Title: OPTICAL COMMUNICATION ESSENTIALS

Publishers: Scientific International Publishing House (SIPH)

ISBN NO: 978-93-94002-34-0

Year of Allotment of ISBN: 2022

Patent IPR Filing Details:

1. Title of Invention: FPGA-BASED ACCESS CONTROL SYSTEM AND METHOD FORDCT COMPRESSED IMAGE Australian Patent No. 2021106217 as Patentee.

Term of Patent: 8 years from 20.08.2021

2. Filed Indian Patent copyright titled ‘IoT based Intelligent Traffic Management System’ as Co-Inventor with Application No.202131062286. Date of filing: 31/12/2021, Publication date (U/S 11A): 04/02/2022.

Teaching:

• Brainware University, Associate Professor, 1st May, 2019 - till date

• Calcutta Institute of Technology, Assistant Professor G-III, 1st September 2015 - 30^th April, 2019

• Calcutta Institute of Technology, Assistant Professor G-II, 1st September, 2010

• Calcutta Institute of Technology, Senior Lecturer, 1st July, 2009

• Calcutta Institute of Technology, Lecturer, 15th January, 2007

• Special/Parallel Session Chair, International Conference on Contemporary Issues in Computing - ICCIC 2020.

• Board Observer for West Bengal Joint Entrance Examination, 2018, 2019 and 2020.