Optical device and method for forming the same
AssigneeSingapore University of Technology and Design
InventorDawn TAN
Life of this patent
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Abstract
According to embodiments of the present disclosure, an optical device for dispersion compensation is provided. The optical device may include a channel waveguide and two sidewalls coupled to at least a portion of the channel waveguide. The two sidewalls may be respectively arranged at opposing sides of the channel waveguide along a longitudinal axis of the channel waveguide. Each of the two sidewalls may include a plurality of optical elements arranged along the channel waveguide of the waveguide, and the plurality of optical elements may be configured to interact with light propagating in the waveguide so as to compensate dispersion of the light by transmitting the light in a regime close to a stopband of the plurality of optical elements defined by a period of the plurality of optical elements.
Claims27
An optical device for dispersion compensation comprising:
- a channel waveguide and two sidewalls coupled to at least a portion of the channel waveguide, the two sidewalls respectively arranged at opposing sides of the channel waveguide along a longitudinal axis of the channel waveguide,
- wherein each of the two sidewalls comprises a plurality of optical elements arranged along the channel waveguide of the waveguide, and the plurality of optical elements are configured to interact with light propagating in the waveguide so as to compensate dispersion of the light by transmitting the light in a regime close to a stopband of the plurality of optical elements defined by a period of the plurality of optical elements.
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An optical system comprising:
- an optical transmitter for providing at least one optical signal;
- an optical fiber coupled to the optical transmitter for receiving and transmitting the at least one optical signal;
- an optical device for compensating dispersion of the at least one optical signal induced by the transmission in the optical fiber;
- and
- an optical receiver,
- wherein the optical device comprises:
- a channel waveguide and two sidewalls coupled to at least a portion of the channel waveguide, the two sidewalls respectively arranged at opposing sides of the channel waveguide along a longitudinal axis of the channel waveguide,
- wherein each of the two sidewalls comprises a plurality of optical elements arranged along the channel waveguide of the waveguide, and the plurality of optical elements are configured to interact with light propagating in the waveguide so as to compensate dispersion of the light by transmitting the light in a regime close to a stopband of the plurality of optical elements defined by a period of the plurality of optical elements.
A method for forming an optical device, the method comprising:
- forming a channel waveguide;
- and
- forming two sidewalls coupled to at least a portion of the channel waveguide by at least one of ion-implantation or photo lithography, the two sidewalls respectively arranged at opposing sides of the channel waveguide along a longitudinal axis of the waveguide,
- wherein each of the two sidewalls comprises a plurality of optical elements extending to a respective side opposite to the portion of the channel waveguide of the waveguide, and the plurality of optical elements interact with light propagating in the waveguide so as to compensate dispersion of the light by transmitting the light in a regime close to a stopband of the plurality of optical elements defined by a period of the plurality of optical elements.
An optical device comprising:
- a waveguide;
- and
- a Bragg grating defined in at least a portion of the waveguide,
- wherein the Bragg grating is configured to interact with light propagating in the waveguide so as to compensate dispersion of the light by transmitting the light in a regime close to a stopband of the Bragg grating.
A method in dispersion compensation of light using an optical device, the method comprising:
- transmitting the light in a regime close to a stopband of a plurality of optical elements defined by the period of the plurality of optical elements,
- wherein the light has a positive dispersion and the light has a wavelength longer than the stopband of the plurality of optical elements by a range of 0.1 nm to 1 nm, or
- wherein the light has a negative dispersion and the light has a wavelength shorter than the stopband of the plurality of optical elements by a range of 0.1 nm to 1 nm, and
- wherein the optical device comprises:
- a channel waveguide and two sidewalls coupled to at least a portion of the channel waveguide, the two sidewalls respectively arranged at opposing sides of the channel waveguide along a longitudinal axis of the channel waveguide,
- wherein each of the two sidewalls comprises the plurality of optical elements arranged along the channel waveguide of the waveguide, and the plurality of optical elements are configured to interact with light propagating in the waveguide so as to compensate dispersion of the light by transmitting the light in the regime close to the stopband of the plurality of optical elements defined by a period of the plurality of optical elements.
Dependencies are inferred from the claim text.