Stub-tuned photonic crystal waveguide
AssigneeAgilent Technologies, Inc.
InventorsCurt A. Flory, Mihail M. Sigalas
Life of this patent
Estimating the term…
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.
Claims20
A photonic crystal waveguide apparatus, comprising:
- a photonic crystal;
- a waveguide in said photonic crystal which is capable of transmitting light having a frequency within a bandgap of said photonic crystal;
- and
- a resonant stub connected to and extending from said waveguide to control light in the waveguide.
A photonic crystal waveguide apparatus comprising
- a photonic crystal, said photonic crystal comprising a periodic lattice;
- a waveguide in said photonic crystal, said waveguide comprising a region of first defects in said periodic lattice and being capable of transmitting light having a frequency within a bandgap of the photonic crystal;
- and
- a resonant stub extending from a sidewall of said waveguide to control light transmission characteristics of said waveguide by creating a transmission zero in said bandgap at which light of a frequency that is otherwise capable of being transmitted by said waveguide is prevented from being transmitted by said waveguide.
In a photonic crystal waveguide apparatus which includes a photonic crystal, a waveguide in said photonic crystal which is capable of transmitting light having a frequency within a bandgap of said photonic crystal, and a resonant stub connected to said waveguide for controlling transmission characteristics of light in said waveguide by creating a transmission zero in said bandgap at which light having a wavelength that is otherwise capable of being transmitted by said waveguide is prevented from being transmitted by said waveguide, said resonant stub including a resonator region including structures of dielectric material, a method for tuning said transmission zero comprising tuning a dielectric constant of said dielectric material of said structures to tune said transmission zero.
Dependencies are inferred from the claim text.