Photonic crystal T-shaped waveguide-based horizontal output magnetic control alternative light path switch
A technology of photonic crystal and optical path switch, which is applied in the field of horizontal output magnetically controlled two-to-one optical path gating switch, which can solve the problems of large size and inability to integrate optical paths, and achieve small structure size, wide operating wavelength range, and switching time response fast effect
Inactive Publication Date: 2016-05-25
欧阳征标
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The invention discloses a photonic crystal T-shaped waveguide-based horizontal output magnetic control alternative light path switch which comprises a photonic crystal T-shaped waveguide with a TE forbidden band. The light path switch further comprises an input end (1), two output ends (2, 3), a background silicon dielectric cylinder (4), isosceles right triangle defect dielectric cylinders (5), a defect dielectric cylinder (6) and an electromagnet (7) for supplying offset magnetic field, wherein the input end (1) is arranged at the left end of the photonic crystal T-shaped waveguide; the output ends (2, 3) are respectively located at the right end and upper end of the photonic crystal T-shaped waveguide and are arranged in a horizontal line; the defect dielectric cylinder (6) is located at a central interaction of the T-shaped waveguide; the photonic crystal T-shaped waveguide is used for inputting the TE carrier light through the port (1) and then outputting the amplitude modulating light from the port (2) or the port (3). The photonic crystal T-shaped waveguide-based horizontal output magnetic control alternative light path switch is small in structure volume, is convenient in integration and is capable of efficiently realizing the function of alternative light path switch.
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