Improved performance of a silicon arrayed waveguide grating by reduction of higher order mode generation near the boundary of a star coupler

Jaegyu Park; Jiho Joo; Hyundai Park; Myung-Joon Kwack; Gyungock Kim

doi:10.1117/12.2077408

27 February 2015 Improved performance of a silicon arrayed waveguide grating by reduction of higher order mode generation near the boundary of a star coupler

Jaegyu Park, Jiho Joo, Hyundai Park, Myung-Joon Kwack, Gyungock Kim

Author Affiliations +

Proceedings Volume 9367, Silicon Photonics X; 936705 (2015) https://doi.org/10.1117/12.2077408
Event: SPIE OPTO, 2015, San Francisco, California, United States

Abstract

We investigate the improvement of an insertion loss in silicon arrayed waveguide grating (AWG), by analyzing the multimode generation due to the field-mismatching effect. 8 channel silicon AWGs on a 6” SOI wafer are fabricated with an ultra-shallow etching structure and various aperture size of arrayed WGs. Our experimental results demonstrate the improved insertion loss and crosstalk characteristics. The fabricated AWG shows an insertion loss less than 1 dB with a crosstalk of -23.2 ~ -25.6 dB, exhibiting ~2.5 dB improvement of insertion loss and ~5 dB improvement of crosstalk, compared to our reported result.

Citation Download Citation

Jaegyu Park, Jiho Joo, Hyundai Park, Myung-Joon Kwack, and Gyungock Kim "Improved performance of a silicon arrayed waveguide grating by reduction of higher order mode generation near the boundary of a star coupler", Proc. SPIE 9367, Silicon Photonics X, 936705 (27 February 2015); https://doi.org/10.1117/12.2077408

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