Design of narrow channel spacing photonic wire AWG on SOI with three stigmatic points

Ren Bai; Ao Shen; Yubo Li; Yinlei Hao; Xiaoqing Jiang; Jianyi Yang

doi:10.1117/12.869951

15 November 2010 Design of narrow channel spacing photonic wire AWG on SOI with three stigmatic points

Ren Bai, Ao Shen, Yubo Li, Yinlei Hao, Xiaoqing Jiang, Jianyi Yang

Proceedings Volume 7847, Optoelectronic Devices and Integration III; 78470Y (2010) https://doi.org/10.1117/12.869951
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

In this paper, an accurate Fourier Optics method of designing AWG demultiplexer based on high-index-contract Silicon-on-Insulator (SOI) materials is presented. The typical SOI photonic wire waveguide has a cross section of 400×340nm² satisfying single-mode condition, and operating central wavelength is 1.5500μm. A three-stigmatic-points method is also applied in order to improve the accuracy, considering the aberration theory. Furthermore, our AWG has another important characteristic--the flat field of the output ports. In the example presented here, we design a 1×256 channel AWG with 0.1-nm channel spacing. The simulation result shows that the insert loss is almost 0dB for the central and peripheral output ports as well, representing a good uniformity. Meanwhile, the crosstalk to the adjacent channel is 14.4dB. Free spectral region (FSR) equals to 30nm as designed.

Citation Download Citation

Ren Bai, Ao Shen, Yubo Li, Yinlei Hao, Xiaoqing Jiang, and Jianyi Yang "Design of narrow channel spacing photonic wire AWG on SOI with three stigmatic points", Proc. SPIE 7847, Optoelectronic Devices and Integration III, 78470Y (15 November 2010); https://doi.org/10.1117/12.869951

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