Optical output module, optical element, and method for controlling optical output module
AssigneeNEC Corporation
InventorNaoki KOBAYASHI
Life of this patent
Estimating the term…
Abstract
An optical output unit outputs first light. An optical element outputs second light obtained by performing wavelength filtering on the first light input from the optical output unit. The optical element includes a wavelength filter that performs wavelength filtering on the first light and outputs the second light, an optical waveguide that guides the first light to the wavelength filter and outputs the second light from the wavelength filter as output light, and a heater that is provided for the optical waveguide and controls reflected light generated in the optical waveguide.
Claims10
An optical output module comprising:
- an optical output unit that outputs first light;
- and
- an optical element that outputs second light obtained by performing wavelength filtering on the first light input from the optical output unit,
- wherein the optical element comprises:
- a wavelength filter that performs wavelength filtering on the first light and outputs the second light;
- an optical waveguide that guides the first light to the wavelength filter and outputs the second light from the wavelength filter as output light;
- and
- a heater that is provided for the optical waveguide and controls reflected light generated in the optical waveguide.
An optical element comprising:
- a wavelength filter that outputs second light obtained by performing wavelength filtering on first light input from an optical output unit;
- an optical waveguide that guides the first light to the wavelength filter and outputs the second light from the wavelength filter as output light;
- and
- a heater that is provided for the optical waveguide and controls reflected light generated in the optical waveguide.
A method for controlling an optical output module, the method comprising:
- in the optical output module that guides, with an optical waveguide, first light input from an optical output unit to a wavelength filter and outputs second light from the wavelength filter as output light,
- performing, by the wavelength filter, wavelength filtering on the first light input from the optical output unit and outputting the second light;
- and
- controlling, by a heater provided for the optical waveguide, reflected light generated in the optical waveguide.
Dependencies are inferred from the claim text.