Research Publications

Ph.D. Publications

Patent

• An All-Fiber Multimode Interference Device For Single Higher Order Modes Switching And Azimuthal Order Mode Sorting In Few Mode Fiber Network (Application Filed)

Inventors: Kritarth Srivastava and Dr. Nitin Bhatia 

Journals

1. K. Srivastava and N. Bhatia, "Mode switching and sorting in few-mode fiber ports using a square core multimode optical fiber," J. Opt. Soc. Am. B 42, 2163-2173 (2025)

2. K. Srivastava and N. Bhatia, "An All-Fiber Multimode Interference Device for Power Splitting in Few Mode Fiber Networks," in Journal of Lightwave Technology, vol. 43, no. 2, pp. 799-808, 15 Jan.15, 2025.

3. K. Srivastava and N. Bhatia, “An all-fiber multimode interference based 1×4 power splitter using square core multimode fiber,” IEEE Photonics Technology Letters, vol. 36, no. 11, pp. 729–732, 2024.

4. K. Srivastava and N. Bhatia, “Design of all-fiber 2D MMI based optical devices using 1D mode propagation method,” Optics Communications, vol. 559, p. 130426, 2024.

Conferences

• Outside India

1. K. Srivastava and N. Bhatia, "2D MMI based wavelength division demultiplexer using square core multimode fiber" Frontiers in Optics/Laser Science, JM7A. 73, 2023, Tacoma, Washington, USA.

2. K. Srivastava and N. Bhatia, "Field propagation method in a square core optical waveguide for designing multimode interference devices" Frontiers in Optics/Laser Science, JW5B. 34, 2022, Rochester, New York, USA.

3. K. Srivastava and N. Bhatia, "A Multimode Interference method for power combining and coupling tunable optical power in a single mode fiber" Conference on Lasers and Electro-optics - Pacific Rim (CLEO - PR), P-CTu10-02, 2022, Sapporo, Japan.

4. K. Srivastava and N. Bhatia, "Practical Considerations For 1x4 All-Fiber MMI Based Power Splitter Using Square Core Fiber" Frontiers in Optics/Laser Science, JTu1A. 7, 2021, Washington, USA. 

• In India

1. K. Srivastava and N. Bhatia, "Two Dimensional MMI Based 1×2 Optical Switch Using Square Core Multimode Fiber," 2023 IEEE Workshop on Recent Advances in Photonics (WRAP), Prayagraj, India, 2023, pp. 1-3, doi: 10.1109/WRAP59682.2023.10713037.

2. K. Srivastava and N. Bhatia, "All-Fiber 2D MMI Based Optical Logic Gates Using Square Core Multimode Fiber," 2023 IEEE Workshop on Recent Advances in Photonics (WRAP), Prayagraj, India, 2023, pp. 1-3, doi: 10.1109/WRAP59682.2023.10712942.

M.Tech. Publications

Journals

1. K. Srivastava and V. D. Kumar, “Investigation of light coupling between HMIM and HIMI plasmonic waveguides,” Optical and Quantum Electronics, vol. 53, no. 5, pp. 1–8, 2021.  

2. K. Srivastava and V. Dinesh Kumar, “Efficient coupling of light between dielectric and HIMI plasmonic waveguide,” Optical and Quantum Electronics, vol. 52, no. 7, pp. 1–9, 2020.

3. K. Srivastava, S. Chitimireddy, P. Sharma, and D. K. Vishwakarma, “Investigation of bragg gratings in planar hybrid metal–insulator–metal plasmonic waveguide using graded profile,” Micro & Nano Letters, vol. 14, no. 10, pp. 1117–1120, 2019.

Co-authored Journals as 2nd author

1. V. Patel, K. Srivastava, P. Sharma, and V. D. Kumar, “Efficient coupling of light from dielectric to HIMI plasmonic waveguide,” Micro & Nano Letters, vol. 14, no. 8, pp. 897–900, 2019.