Stub-tuned photonic crystal waveguide
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United States of America Patent
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Feb 3, 2004
Grant Date -
Oct 31, 2002
app pub date -
Apr 30, 2001
filing date -
Apr 30, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A photonic crystal waveguide apparatus has a photonic crystal having a waveguide which is capable of transmitting light having a frequency within a bandgap of the photonic crystal, and a resonant stub connected to the waveguide to control light in the waveguide. The resonant stub has a resonator region and a connecting channel which connects the resonator region to the waveguide. The resonant stub controls light transmission characteristics of the waveguide by creating a transmission zero in the transmission band of the waveguide. A tuner for tuning the resonant stub may also be provided to control the transmission zero to provide an active optical apparatus such as an on/off switch or a modulator.
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