Analytical design of a focusing double grating coupler (FDGC)

Gil Mildworth; Yaakov Amitai

doi:10.1117/12.281402

22 September 1997 Analytical design of a focusing double grating coupler (FDGC)

Gil Mildworth, Yaakov Amitai

Proceedings Volume 3110, 10th Meeting on Optical Engineering in Israel; (1997) https://doi.org/10.1117/12.281402
Event: 10th Meeting on Optical Engineering in Israel, 1997, Jerusalem, Israel

Abstract

In this paper, we present a method to design a focusing double grating coupler (FDGC), which couples a polychromatic wave out of a waveguide and focuses it with only a negligible angular dispersion. The aim of the design is to construct two grating functions in such a way that the chromatic dispersions of the two gratings will compensate each other mutually. To achieve that, we use an iterative method, where the main idea is to design a double grating which deflects and focuses with no dispersion two different wavelengths resulting in negligible dispersion inside the band. The FDGC described in this paper can be applicable to many devices. In particular, the FDGC provides an attractive solution to be used in various applications of integrated optics, as well as in optical parallel computing. In addition, it can be implemented within a wide variety of applications such as a CD player, optical mass storage devices or any other application that incorporates a solid state laser and a focusing lens.

Citation Download Citation

Gil Mildworth and Yaakov Amitai "Analytical design of a focusing double grating coupler (FDGC)", Proc. SPIE 3110, 10th Meeting on Optical Engineering in Israel, (22 September 1997); https://doi.org/10.1117/12.281402

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