Silicon photonic subwavelength grating based integrated optical delay lines

Ashrafi, Reza and Wang, Junjia and Glesk, Ivan and Chen, Lawrence R. (2015) Silicon photonic subwavelength grating based integrated optical delay lines. In: 2015 IEEE 12th International Conference on Group IV Photonics (GFP). IEEE Photonics Society, pp. 127-128. ISBN 978-1-4799-8254-7

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    Abstract

    We demonstrate a novel integrated optical delay line approach based on silicon subwavelength gratings (SWGs). By 30% change in duty-cycle of SWG waveguides with a same length of 8mm to control their group index, up to ~30ps time-delay was achieved.