Abstract
In this paper, a leaky-mode directional coupler based on grating-assisted
coupling between a semiconductor subwaveguide and a polymer subwaveguide is
experimentally demonstrated at wavelengths near 1310 nm. The grating is
fabricated at the interface between the semiconductor and polymer materials.
The grating period satisfies the phase-matching condition for power exchange
between the two nonsynchronous subwaveguides. Experimental and theoretical
results show coupling from the semiconductor subwaveguide to the polymer
subwaveguide as a function of excitation wavelength.
© 2009 IEEE
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