[8p-N202-1~18] 3.13 Silicon photonics, Photonics-electronics convergence, Optical control

5:30 PM - 5:45 PM JST(8:30 AM - 8:45 AM UTC)

[8p-N202-16] Optimization of Highly Efficient Broadband Grating Coupler and Investigation of High Efficiency

〇Naoki Tahara¹, Shota Nawa¹, Mikiya Kamata¹, Toshihiko Baba¹ (1.Yokohama Natl Univ)

Keywords:

Silicon photonics,Fiber coupler

We designed a Si photonics grating coupler that couples light between Si waveguide and out of plane optical fibers that is highly efficiency and broadband. It calculated a maximum coupling efficiency of -0.84 dB and a C band average coupling efficiency of -1.0 dB. We also investigated the radiation mechanism underlying the high efficiency of the designed grating coupler