Vice-Chancellor

Journal Publications

1. S. Gangopadhyay, S.N. Sarkar; Laser Diode to Single- Mode FibreExcitation Via Hyperbolic Lens on the Fibre Tip: Formulation of ABCD Matrix and Efficiency Computation. Optics Communications (Netherlands), ELSEVIER, 132, 55-60 (1996) SCI

2. S. Gangopadhyay, S.N. Sarkar; LP11 Cut-Off Frequency Calculation Using Chebyshev Technique In Dispersion- Shifted and Dispersion- Flattened Fibres, Journal of Optics (India), 1996, 25, 2, 103-108. SCI

3. S. Gangopadhyay, S.N. Sarkar; ABCD Matrix For Reflection And Refraction Of Gaussian Light Beams At Surfaces Of Hyperboloid Of Revolution And Efficiency Computation By Way Of A Hyperbolic Lens On The Fibre Tip, Applied Optics (USA), 1997, 36, 33, 8582-8586. SCI

4. S. Gangopadhyay, S.N. Sarkar; Confinement and Excitation Of The Fundamental Mode In Single-Mode Graded Index Fibers: Computation By A Simple Technique. International Journal of Optoelectronics (UK) 1997, 11, 4, 285-289. SCOPUS

5. S. Gangopadhyay, S. N. Sarkar; Laser Diode to Single-Mode Fiber Excitation Via Hemispherical Lens on the Fiber Tip: Efficiency Computation By ABCD Matrix With Consideration For Allowable Aperture, Journal of Optical Communications (Germany) 1998, 19, 2, 42-44. SCOPUS

6. S. K. Mondal, S. Gangopadhyay, S. N. Sarkar, Analysis of An Upside- Down Taper Lens End From A Single-Mode Step-Index Fiber, Applied Optics (USA) 1998, 37, 6, 1006-1009. SCI

7. S. Gangopadhyay, S. N. Sarkar, Prediction of Modal Dispersion in Single-Mode Graded Index Fibers by Chebyshev Technique, Journal of Optical Communications (Germany) 1998, 19, 4, 145-148. SCOPUS

8. S. Gangopadhyay, S. N. Sarkar, Evaluation of Modal Spot Size in Single-Mode Graded Index Fibers by a Simple Technique, Journal of Optical Communications (Germany) 1998, 19, 5, 173-175. SCOPUS

9. S. Gangopadhyay, S.N. Sarkar, Misalignment Considerations in Laser Diode to Single-Mode Fibre Excitation Via Hyperbolic Lens on the Fibre Tip, Optics Communications (Netherlands) 1998, 146, 104-108. SCI

10. S. Gangopadhyay, S. N. Sarkar, Misalignment Considerations in Laser Diode to Single-Mode Fiber Excitation Via Hemispherical Lens on the Fiber Tip, Journal of Optical Communications (Germany) 1998, 19, 6, 217-221. SCOPUS

11. S. Gangopadhyay, S. Choudhury, S. N. Sarkar, Evaluation of Splice Loss in Single-Mode Graded Index Fibers by a Simple Technique, Optical and Quantum Electronics (UK) 1999, 31, 12, 1247-1256. SCI

12. P. Patra, S. Gangopadhyay, S. N. Sarkar, A Simple Method for Studying Single-Mode Graded Index Fibers in the Low V Region, Journal of Optical Communications (Germany) 2000, 21, 6, 225-228. SCOPUS

13. S. Sanyal, S. Gangopadhyay, S. N. Sarkar, Single-Mode Graded Index Fiber Directional Coupler: Analysis by a Simple and Accurate Method, Journal of Optical Communications (Germany) 2000, 21, 6, 232-235. SCOPUS

14. P. Patra, S. Gangopadhyay, S. N. Sarkar, Evaluation of Petermann I and II Spot Sizes and Dispersion Parameters in the Single-Mode Graded Index Fiber in the Low V Region by Simple Technique, Journal of Optical Communications (Germany) 2001, 22, 1, 19-23. SCOPUS

15. S. Gangopadhyay, S. N. Sarkar, Variation Analysis of Spatial Soliton of Power-Law Nonlinearity, Fiber and Integrated Optics (USA) 2001, 20, 2, 191-196. SCI

16. P. Patra, S. Gangopadhyay, S. N. Sarkar, Confinement and Excitation of Fundamental Mode in Single-Mode Graded Index Fibers of Low V number: Estimation by a simple technique, Journal of Optical Communications (Germany) 2001, 22, 5, 166-171. SCOPUS

17. M. C. Kundu, S. Gangopadhyay, T. Basu, S.N. Sarkar, Evaluation of Dimensionless Vector and Scalar Propagation Constants For Single-Mode Graded Index Fibers by A Simple Technique, Optik (Germany) 2005, 116, 511-514. SCI

18. M. C. Kundu, S. Gangopadhyay, Laser Diode to Monomode Elliptic-Core Fiber Excitation Via Hemispherical Lens on the Fiber Tip: Efficiency Computation by ABCD Matrix with Consideration for Allowable Aperture, Optik (Germany) 2006, 117, 586-590. SCI

19. Sumanta Mukhopadhyay, Sankar Gangopadhyay, Somenath Sarkar, Coupling of a laser diode to a monomode elliptic core fiber via hyperbolic microlens on the fiber tip: efficiency computation with the ABCD matrix, Optical Engineering (USA) 2007, 46(2), 025008, 1- 5. SCI

20. Sumanta Mukhopadhyay, Sankar Gangopadhyay, Somenath. Sarkar, Misalignment considerations in a laser diode to monomode elliptic core fiber coupling via a hyperbolic microlens on the fiber tip: efficiency computation by the ABCD matrix, Optical Engineering (USA) 2007, 46(9), 095008, 1-5. SCI

21. P. Patra, S. Gangopadhyay, S. N. Sarkar, A simple method for prediction of first-order modal field and cladding decay parameter in graded index fiber, Optik (Germany) 2008, 119, 209-212. SCI

22. Prosenjit Roychoudhury, S. Gangopadhyay, S. N. Sarka, Radial variation of pump and signal intensities in EDFA; accurate prediction by a novel approximation of the fundamental modal field, Optik (Germany) 2008, 119, 292-295. SCI

23. P. Patra, S. Gangopadhyay, K. Goswami, Mismatch considerations in laser diode to monomode fiber excitation via a hemispherical Lens on the elliptical core fiber tip, Optik (Germany) 2008, 119, 596-600. SCI

24. Sumanta Mukhopadhyay, S. Gangopadhyay, S. N. Sarkar, Coupling of a laser diode to monomode elliptic core fiber via upside down tapered microlens on the fiber tip: Estimation of coupling efficiency with consideration for misalignments by ABCD matrix formalism, Optik (Germany) 2010, 121, 142-150. SCI

25. Ashima Bose, S. Gangopadhyay, S. C. Saha, A simple method of prediction of fractional modal power guided inside the core, excitation efficiency of the mode by uniform light source and Petermann I and II spot sizes: all for first higher order mode in graded index fibers, Optik (Germany) 2011, 122, 215-219. SCI

26. Ashima Bose, S. Gangopadhyay, S. C. Saha, A simple technique for evaluation of transmission coefficient at the splice with angular offset and transverse offset for first higher order mode propagation in graded index fibers, Optik (Germany) 2011, 122, 1680-1683. SCI

27. Ashima Bose, S.Gangopadhyay, S.C. Saha, Laser Diode to Single Mode Circular Core Graded Index Fiber Excitation via Hemispherical Microlens on the Fiber Tip: Identification of Suitable Refractive Index Profile for Maximum Efficiency with Consideration for Allowable Aperture, Journal of Optical Communications (Germany) 2011, 32, 1-5, SCOPUS

28. Ashima Bose, S. Gangopadhyay, S. C. Saha, A simple but accurate technique of predicting radial variation of pump and signal intensities in erbium-doped graded index fiber amplifier for propagation of first higher order mode, Optik (Germany) 2012, 123, 377-380. SCI

29. Ashima Bose, S. Gangopadhyay, S. C. Saha, A simple technique of prediction of far-field pattern for first order (LP11) mode in graded index fibers, Optik (Germany) 2013, 124, 189-191. SCI

30. Ashima Bose, S. Gangopadhyay,,S.C. Saha, Simple method for study of single-mode dispersion-shifted and dispersion-flattened fibers, Journal of Optical Communications (Germany) 2012, 33, 195-200. SCOPUS

31. Ashima Bose, Sankar Gangopadhyay, Subhas Chandra Saha, Mismatch consideration in circular core mono-mode graded index fiber of triangular refractive index profile excitation via hemispherical microlens on the fiber tip, Journal of Optical Communications (Germany) 2012, 33, 195-200. SCOPUS

32. S. Chakraborty, A. Majumdar, S. Gangopadhyay, 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, Optik (Germany) 2013, 124, 6752– 6756. SCI

33. B. Das, A. Maiti, S. Gangopadhyay, Fractional modal power inside the core and excitation of fundamental mode by uniform light source in case of single-mode dispersion-shifted and dispersion-flattened fibers: Prediction by a simple technique, Optik (Germany) 2013, 124, 5797–5800. SCI

34. B. Das, A. Maiti, S. Gangopadhyay, Simple Method for Prediction of Far-Field Patterns of Single-mode Dispersion-shifted and Dispersion-flattened Fibers, J. Opt. Commun. 2014; 35(1), 17–22. SCOPUS

35. B. Das, A. Maiti, S. Gangopadhyay, Laser diode to single-mode circular core dispersion shifted/dispersion-flattened fiber excitation via hyperbolic microlens on the fiber tip: Prediction of coupling efficiency by ABCD matrix formalism, Optik (Germany) 2014, 125, 3277–3282. SCI

36. B. Das, A. Maiti, S. Gangopadhyay, Excitation of Single-mode Circular Core Parabolic Index Fiber by Laser Diode via Upside Down Tapered Hemispherical Microlens on the Tip of the Fiber: Estimation of Coupling Efficiency by Application of ABCD Matrix Formalism, J. Opt. Commun. (Germany) 2014, DOI 10.1515/JOC2013-4002. SCOPUS

37. A simple but accurate method for study of radial variation of pump and signal intensities in single-mode erbium-doped dispersion-shifted as well as dispersion-flattened fiber amplifier KiranmayKamila, Anup Kumar Panda, SankarGangopadhyay; Optik (Germany) , ELSEVIER, 124 (2013) 6167-6171.SCI

38. Prediction of Petermann I and II Spot Sizes for Single-mode Dispersion-shifted and Dispersion-flattened Fibers by a Simple Technique KiranmayKamila, Anup Kumar Panda, SankarGangopadhyay; J. Opt. Commun. (Germany) 34 (2013) 173-177.SCOPUS

39. Laser Diode to Single-mode Circular Core Dispersion-shifted/Dispersion-flattened Fiber Excitation via Hemispherical Microlens on the Tip of the Fiber: Evaluation of Coupling Efficiency by ABCD Matrix Formalism KiranmayKamila, SankarGangopadhyay; J. Opt. Commun. (Germany) 35 (1) (2014) 77-84.SCOPUS

40. A simple method for prediction of effective core area and index of refraction of single-mode graded index fibers in the low V region. A. Majumdar, S. Das, S. Gangopadhyay ; DOI 10.1515/JOC 2014-0020, J. Opt. Commun. (Germany)2014; aop SCOPUS

41. Misalignment Consideration in Laser Diode to Single-mode Circular Core Dispersion-shifted/Dispersion-flattened Fiber Excitation via Hemispherical Microlens on the Tip of the Fiber.KiranmayKamila, Tapas RanjanMidya and SankarGangopadhyay; J. Opt. Commun.(Germany) (2015) aop SCOPUS

42. A Simple but Accurate Method for Analytical Estimation of Splice Loss in Single-Mode Triangular Index Fibers For Different V Numbers including the Low Ones.Rahul Debnath and SankarGangopadhyay; J. Opt. Commun. (Germany) (2015) aop SCOPUS

43. A simple method for prediction of far –field pattern of mono-mode graded index fibers in the low V region AngshumanMajumdar, SubhalaxmiChakrabortyandSankarGangopadhyay; Optik (Germany), ELSEVIER, 127 (2016) 5295-5300 SCI

44. Mismatch Considerations in Excitation of Single-Mode Circular Core Parabolic Index Fiber by Laser Diode via Upside Down Tapered Hemispherical Microlens on the Tip of the Fiber.Bishuddhananda Das, Tapas RanjanMiddya and SankarGangopadhyay, Journal of Optical Communications. ISSN (Online) 2191-6322, ISSN (Print) 0173-4911, DOI: 10.1515/joc-2016-0043, July 2016 SCOPUS

45. A Simple Method for Study of Radial Variation of Pump and Signal Intensities in Mono-mode Erbium-doped Graded Index Fiber amplifier in the Low V Region.Bishuddhananda Das, Tapas RanjanMiddya and SankarGangopadhyay, IJCA, pp. 1-6,ICETIC, 2016.

46. Misalignment Considerations in Laser Diode to SingleMode Circular Core Dispersion-shifted/Dispersion- flattened Fiber Coupling via Hyperbolic Microlens on the Fiber Tip.Bishuddhananda Das, Tapas RanjanMiddya and SankarGangopadhyay; IJSER, Vol-6 (2015) 460-483.SCOPUS

47. Accurate prediction of dimensionless vector and scalar propagation constants of single-mode graded index fiber in the low V region by simple method.AngshumanMazumdar, Chintan Kumar Mandal and SankarGangopadhyay,International Journal of Photonics and Optical Technology,Vol 3(2017), 25-29.SCOPUS

48. Laser diode to single-mode triangular index fiber excitation via upside down hemisphericalmicrolens on the fiber tip: Prescription of ABCD matrix of transmission and estimation of coupling efficiency ShubhenduMaiti, Anup Kumar Maiti and SankarGangopadhyay ,Optik ( ELSEVIER ) 144(2017) 481-489.SCI

49. Study of Coupling Optics involving hemispherical microlens on the tip of single-mode step index fiber in the framework of ABCD matrix which takes care of arbitrary angle of incidence MithunMaiti, Anup Kumar Maiti and SankarGangopadhyay, IJSER, Vol-8(2017) 388-404.SCOPUS

50. Laser diode to single-mode circular core parabolic index fiber coupling via upside down tapered hyperbolic microlens on the tip of the fiber: Prediction of coupling optics by ABCD matrix formalism AngshumanMajumdar, Chintan Kumar Mandal and Sankar Gangopadhyay, doi. org/10.1515 / joc-2017-0040, J. Opt. Commun. (Germany) 2017; aop SCOPUS

51. Prediction of fundamental modal field for graded index fiber in the presence of Kerr Nonlinearity.SubhalaxmiChakraborty, Chintan Kumar Mandal and SankarGangopadhyay, doi.org/10.1515 / joc- 2017-0126, J. Opt. Commun. (Germany)2017; aop SCOPUS

52. Subhalaxmi Chakraborty, Shubhendu Maiti, Chintan Kumar Mandal, Sankar Gangopadhyay, A novel and accurate method for analysis of single-mode dispersion-shifted and dispersion-flattened fiber directional coupler, Optik 2017, 157, 808-816. SCI

53. Subhalaxmi Chakraborty, Chintan Kumar Mandal, Sankar Gangopadhyay, Prediction of first higher order modal field for graded index fiber in the presence of Kerr nonlinearity, J. Opt. Commun. (Germany) 2018. doi.org/10.1515/joc-2017-0206 SCOPUS

54. Mismatch considerations in laser diode to single-mode circular core triangular index fiber excitation via upside down tapered hemispherical microlens on the fiber tip.HimadriMandal,ShubhenduMaiti, Tien-Lung Chiu &SankarGangopadhyay, Optik (Elsevier), 168 (2018) 533-540 SCI

55. Accurate prediction of effective core area and effective index of refraction of single mode graded index fiber by a simple technique.Prosenjit Roy Chowdhury and S.Gangopadhyay ,Journal of optoelectronics and advanced materials, 20(2018) 247-252.SCI

56. Shubhendu Maiti, Salil Kumar Biswas, Sankar Gangopadhyay, Study of coupling optics involving graded index fiber excitation via upside down tapered parabolic microlens on the fiber tip, Optik 2019, 199, 1-8. SCI

57. Jayanta Aich, Anup Kumar Maiti, Angshuman Majumdar, Sankar Gangopadhyay, A noveland simple formalism for study of effect of Kerr nonlinearity on Petermann I and II spot sizes single-mode-graded index fiber, J. Opt. Commun. (Germany) 2019. doi.org/10.1515/joc-2019-0167 SCOPUS

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

59. Mithun Maity, Anup Kumar Maiti, Himadri Mondal, Sankar Gangopadhyay, A simple method for study of effect of Kerr nonlinearity on effective core area, index of refraction and fractional modal power through the core of monomode graded index fibre, Int. J. Nanoparticles 2020, 12. SCOPUS

60. Tilak Mukherjee, Suvendu Maiti, Angshuman Majumdar, Sankar Gangopadhyay, A simple but accurate formalism for study of single-mode graded index fiber directional coupler in presence of Kerr nonlinearity, Optik 2020, 213, 164772. SCI

61. Kushal Roy, Angshuman Majumdar, Sankar Gangopadhyay, 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, Optik 2020, 216, 164939. SCI

62. Biplab Kumar Ray, Angshuman Majumdar, Shubhendu Maiti, Sankar Gangopadhyay, A simple but accurate technique for study of single-mode Kerr type nonlinear dispersion–shifted and dispersion-flattened fibers, Optik 2020, 219, 165231. DOI: 10.1016/j.ijleo.2020. 165231. SCI

63. JayantaAich, Angshuman Majumdar, Anup Kumar Maiti, Sankar Gangopadhyay, 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, Optik 2020, 222, 165276. DOI: 10.1016/j.ijleo.2020. 165276 SCI

64. “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, AngshumanMajumdar and SankarGangopadhyay, Journal of Optical Communications (Germany), [Accepted, 7th September, 2020] DOI: 10.1515/joc-2020-0192. SCOPUS

65. "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, AngshumanMajumdar, ShubhenduMaiti and SankarGangopadhyay, Journal of Optical Communications (Germany), [Accepted, 5th October, 2020] DOI: /doi.org/10.1515/joc-2020-0234. SCOPUS

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

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

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

69. Biplab Kumar Ray, Mithun Maity, Sankar Gangopadhyay and Anup Kumar Maiti, “Effect of misalignment on coupling efficiency in laser diode to single-mode circular core graded-index fiber coupling via cylindrical microlens on the fiber tip”, Journal of Optical Communications (Germany), 2021. DOI: https://doi.org/10.1515/joc-2020-0277 SCOPUS.

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

71. Ramkrishna Rakshit, Angshuman Majumdar, Shubhendu Maiti, Sankar Gangopadhyay, “Influence of Kerr nonlinearity on single-mode dispersion-shifted and dispersion-flattened directional couplers: analysis by a simple but accurate method” Optical and Quantum Electronics (Springer), 2022. SCI

72. Tilak Mukherjee, Angshuman Majumdar, Sankar Gangopadhyay, “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”, Results in Optics (Elsevier), 2022, 8, 100263. SCOPUS

73. Kushal Roy, Angshuman Majumdar, Sankar Gangopadhyay, “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” Journal of Optical Communications (Germany), 2022. DOI: https://doi.org/10.1515/joc-2022-0050 SCOPUS

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

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

76. Anindita Chattopadhyay, Angshuman Majumdar, Sankar Gangopadhyay, “A Simple but Accurate Technique for Prediction of Confinement and Normalized Group Delay Parameters for Propagation of First Higher Order Mode in Graded Index Fiber”, Journal of Optical Communications (Germany), 2022. DOI: https://doi.org/10.1515/joc-2022-0274 SCOPUS

77. Biplab Kumar Ray, Angshuman Majumdar, Sankar Gangopadhyay, “Analysis of splitting ratio of a symmetric directional coupler fabricated with triangular-index fibers in nonlinear condition-a design perspective”, Results in Optics (Elsevier), 10, 2023, 100341. DOI: https://doi.org/10.1016/j.rio.2022.100341 SCOPUS

78. Angshuman Majumdar, Tilak Mukherjee, Sankar Gangopadhyay, “Estimation of Petermann I, Petermann II spot sizes for Kerr type nonlinear dispersion-shifted along with dispersion-flattened optical fibers in fundamental mode guidance applying a simple but accurate formalism”, Journal of Nonlinear Optical Physics & Materials, 2023, 2350070. DOI: https://doi.org/10.1142/S0218863523500704 (SCI)

79. Angshuman Majumdar, Biplab Kumar Ray, Sankar Gangopadhyay, “The influence of Kerr nonlinear effect on the signal and pump intensities in parabolic and triangular index EDFAs” Results in Optics, 2023. DOI: 10.1016/j.rio.2023.100478 (Scopus)

80. Anindita Chattopadhyay, Angshuman Majumdar, Sankar Gangopadhyay, “Study of Coupling Optics of Cylindrical Microlens Fabricated on tips of Graded Index Fibers having Different Profile Exponents”, Journal of Optical Communications, 2023. DOI: https://doi.org/10.1515/joc-2023-0129 (Scopus)

81. Angshuman Majumdar, Sankar Gangopadhyay, "Coupling of laser diode with cylindrical microlens fabricated on the tip of single-mode photonic crystal fiber: Prediction of Coupling Optics by ABCD Matrix", Journal of Optical Communications, 2023. https://doi.org/10.1515/joc-2023-0233 (Scopus)

82. Mithun Maity, Angshuman Majumdar, Ramkrishna Rakshit, Sankar Gangopadhyay, “The effect of misalignment on the coupling optics involving laser diode and single-mode triangular index fiber with an upside down tapered hyperbolic microlens on its tip”, Journal of Optical Communications, 2024. https://doi.org/10.1515/joc-2024-0024 (Scopus)

83. Jayita Dan, Sudip Garai, A Ghose Choudhury, Sankar Gangopadhyay, “On conservation laws, their applications in stability analysis and chirped solitary wave solutions for the generalized Schrödinger–Hirota equation and its reductions”, Physica Scripta, 2024, Phys. Scr. 99, 035232.

Conference Proceedings

84. Kushal Roy, Angshuman Majumdar, Sankar Gangopadhyay, "Estimation of Far Field Pattern in Mono Mode Step Index Fiber in Presence of Kerr Nonlinearity by a simple Technique", 2020 IEEE VLSI DEVICE, CIRCUIT AND SYSTEM (2020 IEEE VLSI DCS, IEEE Xplore Proceedings), Meghnad Saha Institute of Technology, Kolkata. (Scopus)

85. Tilak Mukherjee, Angshuman Majumdar, Sankar Gangopadhyay, "Effect of Kerr Nonlinearity on Dimensionless Scalar and Vector Propagation Constants of Single Mode Graded Index Fiber: Estimation by a Simple but Accurate Method", 2020, IEEE VLSI DEVICE, CIRCUIT AND SYSTEM (2020 IEEE VLSI DCS, IEEE Xplore Proceedings), Meghnad Saha Institute of Technology, Kolkata. (Scopus)

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

Book Chapters

87. 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 (Scopus)

88. 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 (Scopus)

89. 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 (Scopus)

90. 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 (Scopus)

91. Maiti S., Gangopadhyay S. (2022) A simple but accurate method to predict the reflected intensity noise for single-mode circular core triangular index fiber excitation via upside down tapered hemispherical microlens on the tip of fiber, Proceedings of the 3rd International Conference on Communication, Devices and Computing. Lecture Notes in Electrical Engineering, vol 851. pp 53-62, Springer, Singapore. https://doi.org/10.1007/978-981-16-9154-6_6 (Scopus)