Will be attending ECOC2025 at Bella Center, Copenhagen! Drop a message to connect!
My research focuses mainly on building advanced photonic communication systems to increase the transmission data rate. My work spans across levels, including building sub-systems and developing digital signal processing algorithms for intensity-modulated and coherent lightwave communication systems.
Image: In 2020, @Optical Communication and Network (OCEAN) lab, Dept. of Electrical Engineering, Indian Institute of Technology Madras, India.
[Link]
At the 50th year of Optical Fiber Communication Conference, San Francisco.
[Oct 2024] - Paper accepted in Applied Optics.
[Sept 2024] - Invited submission accepted in FOAN 2024.
[Aug 2024] -Paper accepted in MWP 2024.
[July 2024] - Two papers accepted in ECOC 2024.
[June 2024] - Invited paper submitted to APC. ( Hybrid Digital PAM and 60 GHz Analog Radio over Fiber Optical Spectrum as a Service Applications; co-authored with authors from Trinity College, Dublin and mbryonics, Galway)
[May 2024] - Paper accepted in Advanced Photonics Congress. (100 Gbps PS-PAM8 for Hybrid Fibre-FSO Channel)
[April 2024] - Promoted to a Research Fellow from June 2024.
[March 2024] - Presented two papers in OFC 2024.
[Feb 2024] - Invited to serve as a TPC member for the 2024 IEEE Photonics Conference (IPC).
[Jan 2024] - Delivered an invited talk at the SPIE Photonics West Conference, San Francisco.
[Dec 2023] - 2 papers accepted in OFC 2024. [Tbps IM/DD Transmission over 10 km SMF with O-Band Quantum Dot Laser Comb for DCIs and 100 Gbps PAM4 Transmissions over 50 km with 40 dB Power Budget for PON using a High-Gain Quantum Dot SOA ]
[Nov 2023] - paper accepted in Elsevier Optics Communication. [Experimental Demonstration of 480 Gbit/s Coherent Transmission Using a Nanosecond Switching Tuneable Laser (in collaboration with Pilot Photonics, and Aston University)]
[Oct 2023] - Invited talk to be delivered in SPIE Photonics West. [On the application of semiconductor optical amplifier towards Terabit/s short-reach IM/DD transmission systems ]
[Oct 2023] - Paper accepted in IEEE WRAP 2023. [IQ imbalance Tolerant Probabilistically Shaped Signals with Adaptive Constellation Referencing (work carried out at IIT Madras, in collaboration with DCU)]
[Aug 2023] - Paper accepted in Optica Optics Express. [Low-complexity Algorithms for Coherent Optical Systems with Transceiver IQ Imbalance (work carried out at IIT Madras)]
[July 2023] - 2 Papers accepted (oral) in ECOC 2023, Glasgow. [Tbit/s PAM-4 Transmission with a Free-Running Fabry-Pérot Laser as a Multi-Wavelength Source for Intra-DCI Applications and 4×130 Gbit/s PS-PAM-16 Transmissions Using an Integrated SOA-PIN Design for Intra-DCIs Enabled by Machine Learning]
[July 2023] - Invited paper in ICTON 2023, Romania. [Enabling High Capacity WDM Transmission Systems for Data Centre and Access Networking Applications]
[May 2023] - Paper accepted (oral) in Advance Photonics Congress (APC, SPPCom) 2023. [Single-Lane 138 Gbit/s PS-PAM16 Transmissions over 1 km using 1297 nm DFB for Intra-Data Center Interconnects]
[April 2023] - Paper accepted (oral) in CLEO/ Europe 2023. [Kerr Nonlinearity Tolerance with Reference Constellation Adaptation]
[March 2023] - Paper accepted in IEEE/Optica JLT. [Bandwidth Re-configurable Wideband QAM-OFDM with Hybrid Integrated InP-Si3N4 Tunable Laser Source for Short-reach Systems (DCU, Lionix)] Link to access paper
[Feb 2023] - 2 Papers accepted (oral) in CLEO 2023. [Symbol Rate Tolerance of Geometric Parameter Extraction-based Receiver IQ imbalance Correction (IIT Madras, Hong-Kong Poly. U, DCU); SiP based Hybrid Digital and Analog RoF mmWave 5G Transmission for Converged Optical Access Networks (DCU, Lionix)]
[Jan 2023] - Postdeadline paper accepted in SPIE Photonics West, USA. [Widely tunable C-band laser and module with nanosecond tuning and narrow linewidth] - Reporting the world's fastest switching low-linewidth and tunable laser! Link to access paper
[Dec 2022] - Paper accepted in OFC 2023. [100 Gbps/ lane with QD O-band Comb] - Potential for > Tbps transmission in short-reach systems
[Aug 2022] - Paper accepted in IEEE IPC, Vancouver. [Optical Heterodyning with FP-laser based comb for ARoF transmission at 60 GHz RF]
[June 2022] - Paper accepted at ECOC, Switzerland. [160 Gbps wideband OFDM transmission with Hybrid integrated InP-Si3N4 Laser]
[June 2022] - Paper accepted in IEEE Access journal. [Joint signal processing for IQ imbalance in coherent optical systems]
[May 2022] - Two papers accepted at Advanced Photonics Congress, Maastricht, Netherlands.
[April 2022] - Paper got accepted in Photonics North, Niagra, Canada. [THz-wide FP-laser based comb]
[March 2022] - Paper accepted for an oral presentation in CLEO US.
[Feb 2022] - Three papers accepted for publication in IEEE WRAP 2022.
[Jan 2022] - Invited Tutorial at Short Term Training Program, IIT Madras.
© 2025 Lakshmi Narayanan Venkatasubramani