91 citations · 349 across the 24 of their papers we have counts for
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Compact Broadband Low-Loss Taper for Coupling to a Silicon Nitride Photonic Wire
Purnima Sethi, Rakshitha Kallege, Anubhab Haldar +1
We demonstrate an ultra-compact waveguide taper in Silicon Nitride platform. The proposed taper provides a coupling-efficiency of 95% at a length of 19.5 um in comparison to the st…
All-optical wavelength multicasting in quadruple resonance-split coupled Silicon microring cavity
Awanish Pandey, Shankar Kumar Selvaraja
We demonstrate an all-optical four-channel wavelength multicasting in a coupled Silicon microring resonator system. The scheme is based on two-photon absorption induced free carrie…
Efficient and Tunable Strip-to-Slot Fundamental Mode Coupling
Viphretuo Mere, Rakshitha Kallega, Shankar Kumar Selvaraja
We present a novel photonic wire-to-slot waveguide coupler in SOI. The phase matching between a wire and slot mode is achieved using a mode transformer. The architecture consists o…
Thermo-optic coefficient measurement of liquids using silicon photonic microring resonators
Prashanth R Prasad, Shankar K Selvaraja, Manoj Varma
On-chip measurement of thermo-optic coefficient (TOC) of samples along with on-chip temperature measurements can be used to compensate for thermal fluctuation induced noise in refr…
High-efficiency broad-bandwidth sub-wavelength grating based fibre-chip coupler in SOI
Siddharth Nambiar, Shankar Kumar Selvaraja
We report a comprehensive study on the performance of uniform and non-uniform based subwavelength grating couplers in Silicon-on-Insulator. The two performance metrics, coupling ef…
Tunable coupling-induced resonance splitting in self-coupled Silicon ring cavity with robust spectral characteristics
Awanish Pandey, Shankar Kumar Selvaraja
We propose and demonstrate a self-coupled microring resonator for resonance splitting by mutual mode coupling of cavity mode and counter-propagating mode in Silicon-on-Insulator pl…
Ultra-compact low-loss broadband waveguide taper in silicon-on-insulator
Purnima Sethi, Anubhab Haldar, Shankar Selvaraja
A novel design of large bandwidth, fabrication tolerant, CMOS-compatible compact tapers (15 um) have been proposed and experimentally demonstrated in silicon-on-insulator. The prop…