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Two-dimensional photonic crystal hexagonal waveguide ring laser
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DOI：10.1063/1.1510583.png)
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Abstract
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Hexagonal ring-type resonators defined by two-dimensional photonic crystal waveguides are proposed and demonstrated. Lasing actions are observed from the photonic crystal ring resonator patterned on a free-standing slab with InGaAsP active layers emitting near 1.55 mum. For a ring resonator with 8-mum diameter, the threshold peak pump power is similar to3 mW. The quality factor of the ring resonator mode estimated from below-threshold linewidth shows that the sum of the propagation loss and the bending loss of the photonic crystal ring resonator is less than similar to260 cm(-1). The photonic crystal ring resonators can be used for the characterization of the optical losses in photonic crystal waveguides. (C) 2002 American Institute of Physics.
Keywords:
WAVE-GUIDES
MICRODISK LASERS
DEFECT
MODE
TRANSMISSION
PROPAGATION
EMISSION
BANDGAP
INGAASP
BENDS
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