Chinese Optics Letters, Volume. 11, Issue s2, S21301(2013)
Way of designing a periodic grating coupler with fully etched slots
In order to couple into or out of a silicon photonic waveguide on silicon on insulator (SOI) substrate from optical fibers, we present a simple but practical method to design a grating coupler. The grating is periodic with fully etched slots; strong reflection between the fully etched grating and the waveguide is avoided by adding an antireflection interface. Theoretical coupling efficiency up to 43% is demonstrated. A taper waveguide used to link the grating and waveguide is also designed.
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Ting Ma, Weimin Ye, Xiaodong Yuan, Wei Xu. Way of designing a periodic grating coupler with fully etched slots[J]. Chinese Optics Letters, 2013, 11(s2): S21301
Category: Materials
Received: Jan. 29, 2013
Accepted: Mar. 3, 2013
Published Online: Jul. 22, 2013
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