Binary-blazed grating for high-efficient waveguide coupling

Zhiping James Zhou; Nile F. Hartman

doi:10.1117/12.253164

30 September 1996 Binary-blazed grating for high-efficient waveguide coupling

Zhiping James Zhou, Nile F. Hartman

Proceedings Volume 2891, Integrated Optoelectronics; (1996) https://doi.org/10.1117/12.253164
Event: Photonics China '96, 1996, Beijing, China

Abstract

Blazed gratings have been identified as potential high efficient, compact, and planar waveguide couplers. The asymmetrical continuous profile of the blazed grating allocates all diffracted light into a single order and produces higher efficiency for waveguide coupling. This asymmetrical continuous profile also brings difficulty to the fabrication process. This is particularly true when the integrated optoelectronics are down-sized and simple fabrication procedures are in demand. In this paper, a binary blazed grating coupler is proposed to facilitate the fabrication process and retain a high coupling efficiency. Computer analyses of the binary blazed grating profile and diffraction distribution are given. Design and fabrication issues of a waveguide coupler are also discussed.

Citation Download Citation

Zhiping James Zhou and Nile F. Hartman "Binary-blazed grating for high-efficient waveguide coupling", Proc. SPIE 2891, Integrated Optoelectronics, (30 September 1996); https://doi.org/10.1117/12.253164

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