We compute the fiber-to-chip coupling efficiency of grating couplers for fiber mode diameters <10μm. Modeling shows that high efficiency (-1.5dB loss) can be achieved with smaller footprint for fibers with half the mode diameter of single-mode-fiber.
© 2013 OSA
A. Zakharian, S. Kuchinsky, X. Liu, and A. Kobyakov, "Grating-based Fiber-to-chip Coupling Efficiency for Small Mode Field Diameter Fibers," in Advanced Photonics 2013, H. Chang, V. Tolstikhin, T. Krauss, and M. Watts, eds., OSA Technical Digest (online) (Optical Society of America, 2013), paper JT3A.9.
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