Publications

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Research Publications

Book Chapter

  1. M.C. Paul, S. Das, A. Dhar, D. Dutta, P. Harshavardhan Reddy, M. Pal, A. V. Kir’yanov. Advanced Nano-engineered Glass-Based Optical Fibers for Photonics Applications. In: Peng GD. (eds) Handbook of Optical Fibers (2018), Springer, Singapore. https://doi.org/10.1007/978-981-10-1477-2_72-1 [Citations: 01]

Journal Publications

  1. P. Harshavardhan Reddy, A. V. Kir’yanov, A. Dhar, S. Das, D. Dutta, M. Pal, Y. O. Barmenkov, J. A. Minguella-Gallardo, S. K. Bhadra and M. C. Paul “Fabrication of Ultra-High Numerical Aperture GeO2-doped Fiber and its Use for Broadband Supercontinuum Generation” Applied Optics 56(33), 9315-9324 (2017). https://doi.org/10.1364/AO.56.009315 [Citations: 17]
  2. P. Harshavardhan Reddy, M. F. A. Rahman, M. C. Paul, A. A. Latiff, A. H. A Rosol, S. Das, A. Dhar, S. K. Bhadra, K. Dimyati and S. W. Harun “Titanium Dioxide Doped Fiber as a New Saturable Absorber for Generating Mode-Locked Erbium Doped Fiber Laser” Optik – International Journal for Light and Electron Optics 158(4), 1327-1333 (2018). https://doi.org/10.1016/j.ijleo.2018.01.032 [Citations: 22]
  3. P. Harshavardhan Reddy, N.A.A. Kadir, M.C. Paul, S. Das, A. Dhar, E.I. Ismail, A.A. Latiff and S.W. Harun “Erbium-Doped Zirconia-Alumina Silica Glass-Based Fiber as a Saturable Absorber for High Repetition Rate Q-Switched All-Fiber Laser Generation” Chinese Physics Letters 34(8), 084203 (2017). https://doi.org/10.1088/0256-307X/34/8/084203 [Citations: 01]
  4. P. Harshavardhan Reddy, S. Das, D. Dutta, A. Dhar, A. V. Kir’yanov, M. Pal, S. K. Bhadra and M. C. Paul “Luminescent Properties and Optical Amplification of Erbium-Doped Nano-Engineered Scandium-Phospho-Yttria-Alumina-Silica Glass Based Optical Fiber” Physica Status Solidi (A) 215, 1700615 (2018). https://doi.org/10.1002/pssa.201700615 [Citations: 07]
  5. M. F. A. Rahman, P. Harshavardhan Reddy, M. C. Paul, S. Das, A. Dhar, M. F. Baharom, A. A. Latiff, M. F. M. Rusdi, P. Wang, K. Dimyati, and S. W. Harun “Titanium Dioxide Fiber Saturable Absorber for Q-switched Fiber Laser Generation in the 1-micrometer Region” Applied Optics 58, 3495-3500 (2019). https://doi.org/10.1364/AO.58.003495 [Citations: 11]
  6. M. F. A. Rahman, P. Harshavardhan Reddy, M. C. Paul, S. Das, A. Dhar, M. F. M. Rusdi, A. A. Latiff, K. Dimyati and S. W. Harun “Titanium Dioxide-Based Picoseconds Pulsed Fiber Laser Performances Comparison in the 1.5-micron Region” Journal of Physics: Conference Series 1371, 012023 (2019). https://doi.org/10.1088/1742-6596/1371/1/012023 [Citations: 03]
  7. M. F. A. Rahman, P. Harshavardhan Reddy, A. Ahmad, A. A. Latiff, M. F. Baharom and S. W. Harun “Q-switched Ytterbium-doped Fiber Laser Using an 8 cm Long Hafnium Bismuth Erbium Co-doped Fiber Saturable Absorber” Journal of Physics: Conference Series 2075 (1), 012020 (2021). https://doi.org/10.1088/1742-6596/2075/1/012020 [Citations: 00]
  8. A. R. Muhammad, P. Harshavardhan Reddy, H. Haris, S. W. Harun, A. Halder, S. Das, A. Dhar and M. C. Paul “Near Infrared Amplified Spontaneous Emission of Bismuth doped Fiber” Journal of Optoelectronics and Biomedical Materials 8 (3), 131-135 (2016). [Citations: 03] https://www.chalcogen.ro/131_MuhammadR.pdf
  9. S. Bose, P. Harshavardhan Reddy, J. Fan, A. Demircan, A. Ruehl, U. Morgner, S. Roy, M. Pal, S. K. Bhadra and D. Ghosh “Manipulation of Infrared Dispersive Waves in Customized Microstructured Optical Fibers for 1.7 and 2.0 µm Light Sources” Appl. Optics 59, 9015-9022 (2020). https://doi.org/10.1364/AO.398966 [Citations: 04]
  10. A. Dhar, S. Das, P. Harshavardhan Reddy, S. H. Siddiki, D. Dutta, M. Pal, A. V. Kir’yanov and M. C. Paul “Multielement (P-Yb-Zr-Ce-Al-Ca) Fiber for Moderate-Power Laser Application with Enhanced Photodarkening Resistivity” Phys. Status Solidi A, 214(6), 1600655 (2017). https://doi.org/10.1002/pssa.201600655 [Citations: 06]
  11. A. A. Al-Azzawi, A. A. Almukhtar, P. Harshavardhan Reddy, D. Dutta, S. Das, A. Dhar, M. C. Paul, U. N. Zakaria, H. Ahmad and S. W. Harun “Compact and Flat-Gain Fiber Optical Amplifier with Hafnia-Bismuth-Erbium Co-doped Fiber” Optik 170, 56-60 (2018). https://doi.org/10.1016/j.ijleo.2018.05.104 [Citations: 16]
  12. A. A. Almukhtar, A. A. Al-Azzawi, P. Harshavardhan Reddy, S. Das, A. Dhar, M. C. Paul, H. Ahmad and S. W. Harun “Wideband Optical Fiber Amplifier with Short Length of Enhanced Erbium-Zirconia-Yttria-Aluminum Co-doped Fiber” Optik 182, 194-200 (2019). https://doi.org/10.1016/j.ijleo.2019.01.004 [Citations: 09]
  13. A. A. Al-Azzawi, A. A. Almukhtar, P. Harshavardhan Reddy, S. Das, A. Dhar, M.C. Paul, H. Arof, H. Ahmad and S. W. Harun “An Efficient Wideband Hafnia-Bismuth Erbium Co-doped Fiber Amplifier with Flat-Gain Over 80nm Wavelength Span” Optical Fiber Technology 48, 186-193 (2019). https://doi.org/10.1016/j.yofte.2019.01.012 [Citations: 13]
  14. A. A. Al-Azzawi, A. A. Almukhtar, P. Harshavardhan Reddy, D. Dutta, S. Das, A. Dhar, M. C. Paul, U. N. Zakaria and S. W. Harun “A Flat-Gain Double-Pass Amplifier with New Hafnia-Bismuth-Erbium Codoped Fiber” Chinese Physics Letters 35(5), 054206 (2018). https://doi.org/10.1088/0256-307X/35/5/054206 [Citations: 09]
  15. N. Couture, R. Ostic, P. Harshavardhan Reddy, A. K. Kar, M. C. Paul and J. M. Ménard “Polarization-Resolved Supercontinuum Generated in a Germania-Doped Photonic Crystal Fiber” Journal of Physics: Photonics 3(2), 025002 (2021). https://doi.org/10.1088/2515-7647/abe7d9 [Citations: 08]
  16. A. A. Al-Azzawi, A. A. Almukhtar, P. Harshavardhan Reddy, D. Dutta, S. Das, A. Dhar, M. C. Paul, H. Ahmad and S. W. Harun “Wide-Band Flat-Gain Optical Amplifier Using Hafnia and Zirconia Erbium Co-Doped Fibers in Double-Pass Parallel Configuration” Journal of Modern Optics 66 (16), 1711-1716 (2019). https://doi.org/10.1080/09500340.2019.1660813 [Citations: 07]
  17. A. A. Almukhtar, A. A. Al-Azzawi, P. Harshavardhan Reddy, S. Das, A. Dhar, M. C. Paul, H. Ahmad and S. W. Harun “An Efficient L-band Zirconia Yttria Aluminum Erbium Co-doped Fiber Amplifier with 1480nm Pumping” Journal of Nonlinear Optical Physics and Materials 28 (02), 1950018 (2019). https://doi.org/10.1142/S0218863519500188 [Citations: 02]
  18. U. N. Zakaria, S. W. Harun, P Harshavardhan Reddy, D. Dutta, S. Das, A. Dhar, M. C. Paul, Z. Jusoh and M. Yasin “Compact Tunable Hafnia Bismuth Erbium Co-doped Fiber Laser” Journal of Non-Oxide Glasses 10 (3), 77-81 (2018). https://chalcogen.ro/77_ZakariaUN.pdf  [Citations: 01]
  19. U. N. Zakaria, S. W. Harun, P. Harshavardhan Reddy, D. Dutta, S. Das, A. Dhar, M. C. Paul, Z. Jusoh and M. Yasin “Q-switched Hafnium Bismuth Erbium-doped Fiber Laser with Bismuth (III) Telluride Based Saturable Absorber” Chalcogenide Letters 15(4), 181-186 (2018). [Citations: 05]
  20. M. F. A. Rahman, A. A. Latiff, P. Harshavardhan Reddy, S. Das, A. Dhar, M. C. Paul and S. W. Harun “Passively Q-switched Fiber Laser Utilizing New Hafnium Bismuth Erbium Co-doped Fiber as Saturable Absorber” Indian Journal of Physics 93, 1489-1493 (2019). https://doi.org/10.1007/s12648-019-01423-9 [Citations: 05]
  21. A. A. Almukhtar, A. A. Al-Azzawi, X. S. Cheng, P. Harshavardhan Reddy, A. Dhar, M. C. Paul, H. Ahmad and S. W. Harun “Enhanced Triple-pass Hybrid Erbium Doped Fiber Amplifier Using Distribution Pumping Scheme in a Dual-stage Configuration” Optik 204, 164191 (2020). https://doi.org/10.1016/j.ijleo.2020.164191 [Citations: 16]
  22. A. A. Almukhtar, A. A. Al-Azzawi, Z. Jusoh, N. F. Razak, P. Harshavardhan Reddy, D. Dutta, S. Das, A. Dhar, M. C. Paul, H. Ahmad, M. Yasin and S. W. Harun “Flat-gain Optical Amplification within 70nm Wavelength Band Using 199cm Long Hybrid Erbium Fibers” Optoelectronics and Advanced Materials 13 (7-8), 391-395 (2019). https://oam-rc.inoe.ro/articles/flat-gain-optical-amplification-within-70-nm-wavelength-band-using-199-cm-long-hybrid-erbium-fibers/ [Citations: 01]
  23. A. A. Almukhtar, A. A. Al-Azzawi, X. S. Cheng, P. Harshavardhan Reddy, S. Das, A. Dhar, M. C. Paul and S. W. Harun “Flat-Gain and Wide-band Partial Double-Pass Erbium Co-Doped Fiber Amplifier with Hybrid Gain Medium” Optical Fiber Technology 52, 101952 (2019). https://doi.org/10.1016/j.yofte.2019.101952 [Citations: 12]
  24. W. C. Chang, Y. S. Lin, Y. Lee, C. H. Chen, J. H. Lin, P. Harshavardhan Reddy, S. Das, A. Dhar and M. C. Paul “Investigation of Q-switched and Mode-locked Pulses from a Yb3+-doped Germano-Zirconia Silica Glass Based Fiber Laser” IEEE Photonics Journal 9(4), 1-8 (2017). https://doi.org/10.1109/JPHOT.2017.2718020 [Citations: 5]

Conference Proceedings/Presentations

  1. P. Harshavardhan Reddy, A. V. Kir’yanov, S. Das, A. Dhar and M. C. Paul “Ultrahigh NA GeO2 doped Fibers: Fabrication and Broadband Supercontinuum Generation” Paper ID: P1A.22. Presented at: 13th International Conference on Fiber Optics and Photonics, OSA Technical Digest (online) (Optica Publishing Group, 2016), during December 04-08, 2016 at Indian Institute of Technology, Kanpur, India.
  2. P. Harshavardhan Reddy, S. Das, A. Dhar, M. Pal and M. C. Paul “Supercontinuum Generation in Titanium Dioxide doped Large-Core Photonic Crystal Fiber” Paper ID: TP121. Presented at: 14th International Conference on Fiber Optics and Photonics, OSA Technical Digest (online) (Optica Publishing Group, 2018), during December 12-15, 2018 at Indian Institute of Technology, Delhi, India.
  3. P. Harshavardhan Reddy, S. Das, S. H. Siddiki, D. Dutta, A. V. Kir’yanov, A. Dhar and M. C. Paul “Erbium-doped Nano-Engineered Scandium-Yttria-Alumina-Silica Glass Based Optical Fiber for Study of Luminescence Properties” Paper Presented at: International Conference on Advances in Glass Science & Technology, during January 23-25, 2017 at CSIR-Central Glass and Ceramic Research Institute, Kolkata, India.
  4. N. Couture, R. Ostic, P. Harshavardhan Reddy, S. Das, A. Dhar, M. Pal, M. C. Paul, A. K. Kar and J. M. Ménard, “Polarization analysis of a Supercontinuum Generation in a Germanium-doped Photonic Crystal Fiber” Paper ID: JW2E.12. Conference on Lasers and Electro-Optics 2020, San Jose, California, United States of America. Published in OSA Technical Digest (Optical Society of America, 2020) https://doi.org/10.1364/CLEO_AT.2020.JW2E.12. This paper won best Presentation (Poster) Award under OSA Fiber Modeling and Fabrication Technical Group.
  5. N. Couture, R. Ostic, P. Harshavardhan Reddy, A. K. Kar, M. C. Paul and J. Ménard “Polarization Resolution of a Fiber-based Supercontinuum Spanning More than 2 Octaves” Paper ID: FTh1E.5. Frontiers in Optics + Laser Science APS/DLS, during 14-17 September 2020, Washington, D.C., USA. Published OSA Technical Digest (Optica Publishing Group, 2020). https://doi.org/10.1364/FIO.2020.FTh1E.5
  6. R. Ostic, N. Couture, P. Harshavardhan Reddy, A. K. Kar, M. C. Paul and J. Ménard “Simulation of Linear Depolarization Effects During Supercontinuum Generation in Optical Fiber” Paper ID: 255-Zcvc-293. Photonics North 2021, Québec, Canada.
  7. N. Couture, R. Ostic, P. Harshavardhan Reddy, A. K. Kar, M. C. Paul and J. Ménard “Wavelength-dependent Depolarization in Fiber-based Supercontinuum” Paper ID: 328. Canadian Association of Physicists Congress 2021, Ontario, Canada.

Scientific Talks

  1. P. Harshavardhan Reddy, M. C. Paul and S. K. Bhadra “Fabrication, Characterization and Applications of UHNA GeO2-doped Fiber” Contributed Talk on September 23, 2017 at 5th National Conference on Condensed Matter Physics and Applications, at Manipal Institute of Technology, Manipal, India.
  2. P. Harshavardhan Reddy, M. C. Paul and S. K. Bhadra “Development of Highly Nonlinear Speciality Optical Fibers” Contributed Talk at SERC School on Lasers and Nonlinear Optics, during April 11, 2016 at Pondicherry University, Pondicherry, India.
  3. P. Harshavardhan Reddy, M. C. Paul and S. K. Bhadra “Speciality Optical Fibers for Nonlinear Photonic Applications” Seminar Talk on February 11, 2019, at Department of Physics, University of Aveiro, Aveiro, Portugal.
  4. P. Harshavardhan Reddy, M. C. Paul and S. K. Bhadra “Next Generation Fiber-based Supercontinuum Light Sources” Invited Talk on 24 September 2017, Indo-German Convention of Lindau Alumni (IGCLA) 2017 at Kasturba Medical College, Manipal University, Manipal, India.
  5. P. Harshavardhan Reddy, M. C. Paul and S. K. Bhadra “Fiber-based Photonic Technologies for Healthcare and Medicine” Invited Talk on 18 September 2016, at Indo-German Convention of Lindau Alumni 2016 at Kasturba Medical College, Manipal University, Manipal, India.