Patents Filed & Standardization
WP 3
Saurabh Saxena, Gautam R, Jaya Deepthi Bandarupalli, Injection Locked Clock Multiplier with Embedded Phase Interpolator, Indian Patent, 411893, Nov. 2022
A DEVICE AND A METHOD FOR DE-ROTATION OF SIGNALS IN AN OPTICAL COMMUNICATION NETWORK, 202541071930, Filed Dtae: 29/7/2025
WP 5
System and Method for Modeling and Low-Complexity Correction of Polarization Mixing and Inter-Core Crosstalk in Multicore Fibers - Filed: 19/09/2024 (Application No: 202441070936).
Index modulation for spectral efficiency improvement in optical communication systems employing multi-core fibers - Filed: 17/09/2024 (Application No: 202441070216, Under Process).
Bidirectional Simultaneous Transmission Over Single Mode Fiber - Filed: 01/05/2024 (Application No: 202441034654).
Longitudinal polarization profile estimation from reception of modulated data (202441070935 A).
Digital signal processing for impairment mitigation in coherent optical communication
WP 6,7
Device and Method for Optical Coupling to a Multicore Fiber - Filing Date: 8th November 2024, Patent Application Number: 202441086220.
WP 8
Granted: Method and optical fronthauling system for analog optical fronthauling in 5G communication network. Patent no: 436389.
Filed: A dither-free multi-channel any-point bias control system for DWDM Systems with time-based polling, on 20/09/2023
WP 9
Method patent on remote ONU management for analog fronthaul links in 5G networks (Under Preparation)
Design IP on the mechanical design and assembly of mmWave 2T/2R OLT and ONU (Under Preparation)
WP 10
Flat response Stimulated Brillouin Scattering based tunable and reconfigurable Photonic Filter using different waveforms for pump shaping, Indian Patent Filed on 28 January 2025, Application No: 202511006868.
WP 11
Dixit Kumar, Amol Choudhary, Vivek Venkataraman, “Hybrid genetic algorithm based electro optic frequency comb” (Under Preparation)
WP 12
A. Choudhary and P. K. Pandey, “Brillouin‐Based Optical Carrier Amplification for Kramers‐Kronig Receivers with Direct Current‐Value Iteration Method” (Indian Patent Application No. 202511058148)
WP 13
On-demand transparent optical phase conjugators (OPCs) for WDM networks for dispersion healing - filed on 27.02.2024, Application number: 202441013970.
Low-Distortion Amplification of Probabilistic Shaped Signals using semiconductor optical amplifiers - filed on 27.02.2024, Application number: 202441014040.
Four wave mixing suppression with phase dithering (Drafting).
WP 5+13
Low-Distortion Amplification of Probabilistic Shaped Signals using semiconductor optical amplifiers (202441014040), Filed on 27.02.2024
System and a method to improve efficiency of multi-core fiber using index modulation (202441070216A), Filing Date: September 17, 2024
WP 14
Proactive localization of faulty Optical Amplifiers in C+L band WDM Optical Networks, Indian Patent (Drafting).
WP 15
SDN enabled path control in dynamically choosing alternate Quantum Secured Paths for the QKD against emulated attack scenarios (Drafting).
WP 16
Self balancing homodyne detector - Indian Patent Application no: 202441057594, Filing date: 30/07/2024.
WP 17
A. Dixit, Ruchi, A. Prakash, V. Singh, and A. Gupta, “Front-end receiver optics for an optical wireless communication channel,” Indian patent Application number: 202511012983. (Filed)
A. Dixit, Ruchi, A. Prakash, V. Singh, and A. Gupta, “Uniform illumination optics for the transmitter and collection optics for the receiver designed for an indoor optical wireless communication link”. (Drafted)
A. Dixit, and A. Resu, “Transmitter equalizer design for bandwidth enhancement in visible light communication links”. (Drafting)
Patents Filed under each Work Package
Work Package
Title
Standardization
WP 5
Generic characteristics of Raman amplifiers and Raman amplified subsystems
G.665
WP 5
Characteristics a single-mode weakly-coupled multi-core optical fibre and cable
G.smmcf
WP 5
Definitions and test methods for linear, deterministic attributes of single-mode fibre and cable (For MCF)
G.650.2
WP 5
Characteristics of a single mode optical fibre and cable (For MCF)
G.652
WP 5
Characteristics of a cut-off shifted single-mode optical fibre and cable (For MCF)
G.654
WP 8
Radio-over-fibre (RoF) technologies and their applications
G.suppl.55
WP 5
Feed-forward sensing in optical communication networks
TR.fsc
WP 5
MCF Splicing and Joints
New document
WP 6,7
FIFO
New document
IIIT Delhi:
SG-15 Networks, technologies and infrastructures for transport, access and home (IIITD, Study Period: 2025-2028)
ERNET:
TSDSI SGSS study item on “Interoperability of multivendor QKD node using SDN” was initiated jointly with C-DAC, IIT Madras, CDOT, SETS.
IIT Delhi:
G.D. Verma and A.Dixit, "Standardization of FSO systems communication," 2023 TSDSI roadmap 3.0 workshop, Delhi, India, 2023, pp.1-5.
Contributions to ITU-T study group SG-15 for free space optical communications standardization G.fso.
TSDSI ongoing study item on " Enhancement to media access control (MAC) protocols for visible light communication (VLC) in indoor scenarios".
IIT Madras:
Contributions to ITU-T Study Group SG-15 for Space Division Multiplexing (SDM) fiber, especially weakly coupled Multicore fiber (WC-MCF)