46 citations · 80 across the 7 of their papers we have counts for
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Geometric scaling limits of phase-only control in multimode coherent systems
Harikumar K Chandrasekharan
Control of coherent waves is often restricted to phase-only actuation in multimode systems, yet the resulting physical limits remain poorly understood. Here, we show that restricti…
Polarization-independent deterministic mode localization in a photonic lantern
Harikumar K Chandrasekharan, Ross Donaldson
Coherent interference in multimode photonic systems underpins scalable, high-fidelity control for beam shaping, power delivery, and signal processing, yet most existing approaches…
Resolving polarization-dependent mode dynamics in multimode fibers with 2D single-photon detector arrays
Harikumar K. Chandrasekharan, Ross Donaldson
Monitoring polarization dynamics in multimode fibers is critical for a range of applications, spanning from optical communication to sensing. Although the modal behavior of multimo…
State-recycling and time-resolved imaging in topological photonic lattices
Sebabrata Mukherjee, Harikumar K. Chandrasekharan, Patrik Öhberg +2
Photonic lattices - arrays of optical waveguides - are powerful platforms for simulating a range of phenomena, including topological phases. While probing dynamics is possible in t…
Multiplexed Single-Mode Wavelength-to-Time Mapping of Multimode Light
Harikumar K. Chandrasekharan, Frauke Izdebski, Itandehui Gris-Sánchez +8
We demonstrate that photonic lanterns based on tapered multicore fibres provide an efficient way to couple multimode states of light to a two-dimensional array of Single-Photon Ava…