[WP-E] Poster Session 2

[WP-E-7] Broadband and Compact Grating Coupler for Free-Space-to-Chip Terahertz Photonic Coupling

○Vidula B. Palekar¹, Ram Ashish Yadav², Tanay Shukla², Geert Morthier³, Rajesh Kumar^1,2 (1. Centre for Photonics and Quantum Communication Technology, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand (India), 2. Department of Physics, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand (India), 3. Photonics Research Group, Department of Information Technology (INTEC), Ghent University - imec, 9052 Ghent (Belgium))

Keywords:

Si photonic and heterogeneous platform,Free-space optics including optical micro-electro-mechanical systems (MEMS) and liquid crystal devices for photonic networks

A silicon-on-insulator based grating coupler for free-space-to-chip coupling of terahertz waves with coupling efficiency of 55.6% at 0.75THz and a 3dB bandwidth of 71GHz in the range 0.71 to 0.79THz is designed and numerically optimized.