A CMOS Compatible Ultracompact Silicon Photonic Optical Add-Drop Multiplexer with Misaligned Sidewall Bragg Gratings

作者:Saber Md Ghulam*; Xing Zhenping; Patel David; El Fiky Eslam; Abadia Nicolas; Wang Yun; Jacques Maxime; Morsy Osman M; Plant David V
来源:IEEE Photonics Journal, 2017, 9(3): 6601010.
DOI:10.1109/JPHOT.2017.2703857

摘要

We experimentally and via simulations demonstrate ultracompact single-stage and cascaded optical add-drop multiplexers using misaligned sidewall Bragg grating in a Mach-Zehnder interferometer for the silicon-on-insulator platform. The single-stage configuration has a device footprint of 400 mu m x 90 mu m, and the cascaded configuration has a footprint of 400 mu m x 125 mu m. The proposed designs have 3-dB bandwidths of 6 nm and extinction ratios of 25 dB and 51 dB, respectively, and have been fabricated for the transverse electric mode. A minimum lithographic feature size of 80 nm is used in our design, which is within the limitation of 193 nm deep ultraviolet lithography.

  • 出版日期2017-6
  • 单位McGill