Title:
INJECTION LOCKING CONTROL METHOD, INJECTION LOCKING CONTROL APPARATUS, AND LASER RADAR
Document Type and Number:
WIPO Patent Application WO/2022/116555
Kind Code:
A1
Abstract:
An injection locking control method, an injection locking control apparatus, and a laser radar. The injection locking control method is applied to a laser group, and comprises: acquiring a laser signal output by a slave laser (1512) (A1); determining, on the basis of the laser signal output by the slave laser (1512), whether the slave laser (1512) is injection locked (A2); if the result of the determination indicates that the slave laser (1512) is not injection locked, acquiring continuous loss of lock information of the slave laser (1512) (A3); determining whether the slave laser (1512) meets a preset correction condition on the basis of the continuous unlocking information (A4); and if the result of determination indicates that the slave laser (1512) meets the correction condition, adjusting a frequency of the slave laser (1512) (A5). The invention can improve the efficiency of performing correction on injection locking, thereby ensuring laser detection efficiency of a laser radar.
Inventors:
WANG YANG (CN)
PAN ZHENGQING (CN)
LONG XIN (CN)
XIANG SHAOQING (CN)
PAN ZHENGQING (CN)
LONG XIN (CN)
XIANG SHAOQING (CN)
Application Number:
PCT/CN2021/107316
Publication Date:
June 09, 2022
Filing Date:
July 20, 2021
Export Citation:
Assignee:
HESAI TECHNOLOGY CO LTD (CN)
International Classes:
H01S3/00
Foreign References:
| CN111725690A | 2020-09-29 | |||
| CN103986051A | 2014-08-13 | |||
| CN110867720A | 2020-03-06 | |||
| US5027360A | 1991-06-25 | |||
| US6359913B1 | 2002-03-19 |
Other References:
XU ZHOUXIANG: "Research on Automatic Control of Laser Frequency and Process for Cold Atom Interferometry", CHINESE DOCTORAL DISSERTATIONS FULL-TEXT DATABASE, 1 June 2012 (2012-06-01), pages 1 - 107, XP055936687
Attorney, Agent or Firm:
INTEBRIGHT LLP (CN)
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