US 12,218,706 B2
Signal generating method, apparatus, and system
Songlin Shuai, Chengdu (CN); Xianbin Yu, Hangzhou (CN); Zijie Lu, Hangzhou (CN); Hua Cai, Chengdu (CN); and Guangjian Wang, Chengdu (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Dec. 8, 2022, as Appl. No. 18/063,364.
Application 18/063,364 is a continuation of application No. PCT/CN2021/097952, filed on Jun. 2, 2021.
Claims priority of application No. 202010518631.8 (CN), filed on Jun. 9, 2020.
Prior Publication US 2023/0102549 A1, Mar. 30, 2023
Int. Cl. H04B 10/516 (2013.01); H04B 10/50 (2013.01)
CPC H04B 10/516 (2013.01) [H04B 10/503 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A signal generating method, wherein the method comprises:
performing cyclic electro-optic modulation on a first signal to generate a first optical frequency comb signal, wherein the first signal is a signal output by a laser source, the first optical frequency comb signal comprises a target spectral component, and a frequency of the target spectral component is equal to a sum of or a difference between a frequency of the first signal and a frequency of a target signal;
performing first filtering processing on the first optical frequency comb signal to generate the target spectral component; and
generating the target signal based on a heterodyne beat frequency of the first signal and the target spectral component.