We propose a novel method that, for the first time to our knowledge, makes it possible to tailor the spectral response of an input grating coupler. This method is based on the idea of computer-generated waveguide holography. Grating couplers with different spectral responses have been designed and fabricated, and experimental results are presented that demonstrate the effectiveness of the proposed method.
© 1999 Optical Society of America
Ming Li, Baozhu S. Luo, C. P. Grover, Yan Feng, and H. C. Liu, "Waveguide grating coupler with a tailored spectral response based on a computer-generated waveguide hologram," Opt. Lett. 24, 655-657 (1999)