Silicon Embedded High-Efficiency Grating Coupler for 125 nm Thin Silicon Nitride Waveguide

Advanced Photonics Congress, pp. JTu4A.11

Abstract

We demonstrate an efficient silicon-embedded grating coupler between an optical fibre and a 125 nm thin silicon nitride waveguide. The peak efficiency of apodized gratings obtained is –1.84 dB with 3 dB bandwidth over 80 nm.

Authors 4

1. Siddharth R. Nambiar corresponding

   Indian Institute of Science Bangalore

   Affiliation as printed

   Centre of Nano Science and Engineering, Indian Institute of Science, Bengaluru 560012, India

2. Radhakant Singh corresponding Aachen

   AMO (Germany) · Indian Institute of Science Bangalore

   Affiliation as printed

   Centre of Nano Science and Engineering, Indian Institute of Science, Bengaluru 560012, India

   Currently at AMO GmbH Otto Blumenthal Strasse 25, 52074 Aachen, Germany

3. P. Venkatachalam corresponding

   Indian Institute of Science Bangalore

   Affiliation as printed

   Centre of Nano Science and Engineering, Indian Institute of Science, Bengaluru 560012, India

4. Shankar Kumar Selvaraja corresponding

   Indian Institute of Science Bangalore

   Affiliation as printed

   Centre of Nano Science and Engineering, Indian Institute of Science, Bengaluru 560012, India