Title:
OPTICAL FREQUENCY COMB GENERATION DEVICE AND METHOD, LIGHT EMISSION DEVICE, AND OPTICAL COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/174168
Kind Code:
A1
Abstract:
An optical frequency comb generation device (100) and method, a light emission device (200), and an optical communication system (700), which are applied to scenarios such as optical communications and laser radars. The optical frequency comb generation device (100) comprises a laser device (10), an optical splitter (20), a frequency shifter (30) and an optical micro-cavity (40). The laser device (10) is used for generating a source scanning beam with a frequency thereof changing in a first direction; the optical splitter (20) is used for decomposing the source scanning beam into a first scanning beam and a second scanning beam, and the optical power of the first scanning beam is equal to or greater than a nonlinear effect power threshold value of the optical micro-cavity (40); the frequency shifter (30) is used for changing the frequency of the second scanning beam, so as to generate a third scanning beam with a frequency thereof changing in a second direction; and the optical micro-cavity (40) is used for generating, when the first scanning beam is located in a red detuning area thereof and the third scanning beam is located in a blue detuning area thereof, a target beam with an optical spectrum thereof being a target optical frequency comb. The optical frequency comb generation device (100) provided can generate an optical frequency comb with a relatively narrow line width, such that the applicability and practicability thereof are relatively high.
Inventors:
LIU CHEN (CN)
GUI CHENGCHENG (CN)
ZHOU HENG (CN)
GUI CHENGCHENG (CN)
ZHOU HENG (CN)
Application Number:
PCT/CN2023/080690
Publication Date:
September 21, 2023
Filing Date:
March 10, 2023
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H01S3/10; G02F1/35
Foreign References:
| CN111897175A | 2020-11-06 | |||
| CN112582858A | 2021-03-30 | |||
| US20220026780A1 | 2022-01-27 | |||
| CN107144984A | 2017-09-08 | |||
| CN108616030A | 2018-10-02 | |||
| CN111987580A | 2020-11-24 | |||
| CN113485035A | 2021-10-08 | |||
| CN103001114A | 2013-03-27 | |||
| JP2021092740A | 2021-06-17 | |||
| US20180083414A1 | 2018-03-22 | |||
| US20180307118A1 | 2018-10-25 | |||
| US9891500B1 | 2018-02-13 |
Other References:
DAI WEIYU; RAO WEIYING; WANG HAORAN; FU HONGYAN: "Microwave Photonic Filter by Using Recirculating Frequency Shifter to Generate Optical Frequency Comb", IEEE PHOTONICS JOURNAL, IEEE, USA, vol. 13, no. 2, 26 March 2021 (2021-03-26), USA , pages 1 - 8, XP011849530, DOI: 10.1109/JPHOT.2021.3069104
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