The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 23, 2021
Filed:
Oct. 17, 2019
Huawei Technologies Co., Ltd., Shenzhen, CN;
Lin Wu, Wuhan, CN;
Hongmin Chen, Wuhan, CN;
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Abstract
A super structure grating spatially performs amplitude and phase modulation on a uniform grating using a modulation function to generate a comb reflection spectrum. (N+1) modulation function discrete values are obtained after discretization processing is performed on the modulation function using N thresholds. Each of the (N+1) modulation function discrete values corresponds to one section of optical waveguide whose refractive index is uniform or corresponds to one section of the uniform grating. A reflectivity and a full width half maximum (FWHM) of a reflection peak of the super structure grating is adjusted based on a relationship of a ratio of a length of an optical waveguide corresponding to at least one of the (N+1) modulation function discrete values to a total grating length of the super structure grating, and based on the total grating length of the super structure grating.