Photonic Crystal Magneto-Optical Circulator and Manufacturing Method Thereof
First Claim
1. A photonic crystal magneto-optical circulator comprising first dielectric material columns in an air background,wherein,said first dielectric material Pateros amounts but in said photonic crystal are arranged in the form of two-dimensional square lattices;
- each said first dielectric material column occupies one of said square lattices;
the center-to-center distance between any two adjacent horizontal or vertical said first dielectric material columns is one lattice constant;
and the photonic crystal magneto-optical circulator also comprisinga “
T-shaped”
or a “
cross-shaped”
photonic crystal waveguide comprising a horizontal photonic crystal waveguide and a vertical photonic crystal waveguide which are mutually cross-connected;
a second dielectric material column arranged at a cross-connected position of said horizontal photonic crystal waveguide and said vertical photonic crystal waveguide and having the function of light guiding;
four same magneto-optical material columns uniformly arranged on the periphery of said second dielectric material column; and
at least three same third dielectric material columns respectively arranged on the outsides of three said magneto-optical material columns.
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Accused Products
Abstract
The invention relates to a photonic crystal magneto-optical circulator, which comprises first dielectric material columns in an air background, wherein the first dielectric material columns are arranged in the form of two-dimensional square lattice. The photonic crystal magneto-optical circulator also comprises a “T-shaped” or a “cross-shaped” photonic crystal waveguide, a second dielectric material column, four same magneto-optical material columns and at least three same third dielectric material columns, wherein the “T-shaped” or a “cross-shaped” photonic crystal waveguide comprises a horizontal photonic crystal waveguide and a vertical photonic crystal waveguide which are intercrossed; the second dielectric material column is arranged at a cross-connected position of the horizontal photonic crystal waveguide and the vertical photonic crystal waveguide and has the function of light guiding; the four same magneto-optical material columns are uniformly arranged on the periphery of the second dielectric material column; and at least three same third dielectric material columns.
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Citations
16 Claims
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1. A photonic crystal magneto-optical circulator comprising first dielectric material columns in an air background,
wherein, said first dielectric material Pateros amounts but in said photonic crystal are arranged in the form of two-dimensional square lattices; -
each said first dielectric material column occupies one of said square lattices; the center-to-center distance between any two adjacent horizontal or vertical said first dielectric material columns is one lattice constant; and the photonic crystal magneto-optical circulator also comprising a “
T-shaped”
or a “
cross-shaped”
photonic crystal waveguide comprising a horizontal photonic crystal waveguide and a vertical photonic crystal waveguide which are mutually cross-connected;a second dielectric material column arranged at a cross-connected position of said horizontal photonic crystal waveguide and said vertical photonic crystal waveguide and having the function of light guiding; four same magneto-optical material columns uniformly arranged on the periphery of said second dielectric material column; and at least three same third dielectric material columns respectively arranged on the outsides of three said magneto-optical material columns. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for manufacturing a photonic crystal magneto-optical circulator, wherein the manufacturing method comprises the following steps:
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(1) the operating wavelength λ
of said photonic crystal magneto-optical circulator is given;said first dielectric material columns arranged two-dimensionally in the form of square lattice are selected to form a photonic crystal; and the radius of said first dielectric material columns is selected to guarantee that the operating wavelength is within the forbidden band range of said photonic crystal; (2) said horizontal photonic crystal waveguide and said vertical photonic crystal waveguide are respectively formed by removing a row of said first dielectric material columns and a column of said first dielectric material columns and are in a cross-connected arrangement; said second dielectric material column is introduced into a cross-connected position of said horizontal photonic crystal waveguide and said vertical photonic crystal waveguide of said photonic crystal waveguide to form a light guiding column; same said magneto-optical material columns are respectively introduced into three most adjacent lattices on the left, the lower side and the right of said second dielectric material column; a most adjacent said first dielectric material column above said second dielectric material column is removed; and one magneto-optical material column which is the same with said three magneto-optical material columns is introduced thereon. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification