Optical waveguides – Directional optical modulation within an optical waveguide – Magneto-optic
Patent
1995-12-07
1998-04-14
Ngo, John
Optical waveguides
Directional optical modulation within an optical waveguide
Magneto-optic
385131, 359244, G02B 610
Patent
active
057402876
ABSTRACT:
An optical switch in a one-dimensional multilayer dielectric stack having a photonic band gap, composed of at least two groups of layers of dielectric material whose operating wavelength is near the edge of said photonic band gap. At least one layer of each of the groups is composed of a nonlinear c.sub.3 dielectric material, which creates an intensity-dependent shift in the location of the band gap and produces a dynamical change in the transmissive and reflective properties of the multilayer dielectric stack in response to changes in the intensity of light or the transmittance of electromagnetic radiation passing through the multilayer dielectric stack. The width of the photonic band gap is determined by the differences between the refractive indices of the nonlinear dielectric material and that of the other layers of dielectric material in the multilayer dielectric stack.
REFERENCES:
patent: 4597638 (1986-07-01), Chemla et al.
patent: 4818079 (1989-04-01), Maserjian
patent: 5414726 (1995-05-01), Raj et al.
Optical Limiting and Switching of Ultrashort Pulses in Nonlinear Photonic nd Gap Material By Michael Scalora, Jonathan P. Dowling, Charles M. Bowden, and Mark J. Bloemer Published. 5 Sep. 1994 in vol. 73, No. 10; pp. 1368-1371 Physical Review Letters, By the American Physical Society.
Bloemer Mark J.
Bowden Charles M.
Dowling Jonathan P.
Scalora Michael
Tocci Michael D.
Bush Freddie M.
Garner Howard G.
Ngo John
The United States of America as represented by the Secretary of
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