Abstract
A low-loss polarization-independent and wavelength-insensitive mode
converter is demonstrated for coupling between standard single-mode fiber
(SMF) and 1.5-$\mu$m-thick
silicon waveguides. This mode converter consists of a double-stage taper fabricated
using planar processing. Optical testing results show facet loss of approximately $-$1.5 dB/facet, for
TE and TM polarizations across a wide wavelength range.
© 2008 IEEE
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