Abstract
Si-based type-B antiresonant reflecting optical waveguide (ARROW-B) photonic
crystal waveguides (PCWs) with 60° bend, 120° bend, and Y-branch power
splitter were first successfully fabricated and characterized. A simple capsule-shaped
defect was designed to modulate the 60° and 120° photonic crystal (PC)
bend corners and Y-branch PC power splitters. In the preliminary experiments, the
average bend losses of 60° and 120° PC bend waveguides for both
polarizations were lower than 1.5 and 4.2 dB/bend, respectively. For the Y-branch PC
power splitters, power imbalances for both polarizations were all lower than 0.7 dB. It
shows that the fabricated Si-based ARROW-B PCWs can provide good light sharp-bend
ability and power-split ability.
© 2012 IEEE
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