Multi-wavelength laser and wavelength control method
AssigneeHuawei Technologies Co., Ltd.
InventorsZhuang Zhao, Xu Sun, Zhenqing Zhao, Jinlin Zeng
Life of this patent
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Abstract
A multi-wavelength laser and a wavelength control method are disclosed. The multi-wavelength laser includes a waveguide, a first electrode, and a second electrode. The first electrode and the second electrode are disposed on the waveguide. The first electrode is electrically isolated from the second electrode. The first electrode includes a plurality of sub-electrodes, and every two adjacent sub-electrodes are electrically isolated. The second electrode is configured to amplify an optical signal in the waveguide by loading a current. At least one sub-electrode is configured to adjust a wavelength of the optical signal in the waveguide by loading a current or a voltage.
Claims12
A multi-wavelength laser, comprising:
- a waveguide;
- a first electrode disposed on the waveguide, wherein the first electrode comprises a plurality of sub-electrodes, and every two adjacent sub-electrodes of the plurality of sub-electrodes are electrically isolated;
- and
- a second electrode configured to amplify an optical signal in the waveguide, wherein a first current is loaded onto the second electrode to amplify the optical signal in the waveguide, and the first electrode and second electrode are electrically, isolated;
- wherein a second current or a voltage is loaded onto at least one of the plurality of sub-electrodes to control a wavelength range of the optical signal in the waveguide.
A wavelength control method, comprising:
- obtaining a correspondence between a length of a first electrode having a plurality of sub-electrodes disposed on a waveguide and a wavelength of an optical signal in the waveguide, wherein every two adjacent sub-electrodes of the plurality of sub-electrodes are electrically isolated;
- selecting at least one sub-electrode from the plurality of sub-electrodes according to the correspondence;
- and
- controlling a wavelength range of the optical signal by loading a current or a voltage onto the at least one sub-electrode and amplifying the optical signal by loading a current onto a second electrode disposed on the waveguide, wherein the first electrode is electrically isolated from the second electrode.
Dependencies are inferred from the claim text.