Title:
COHERENT ARRAY LASER STRUCTURE AND PREPARATION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/226610
Kind Code:
A1
Abstract:
A coherent array laser structure and a preparation method. The coherent array laser structure comprises an array light source, a first resonant cavity and a second resonant cavity, wherein a high-reflection area and a low-reflection area are arranged on two sides of an active area of the array light source; the high-reflection area, the active area and the low-reflection area form the first resonant cavity; a passive dielectric layer (6), a mode selection layer (8) and a reflection layer (9) are sequentially arranged on a light-emergent side of the low-reflection area; the first resonant cavity, the passive dielectric layer (6), the mode selection layer (8) and the reflection layer (9) form the second resonant cavity; and the mode selection layer (8) is used for realizing parallel coherence and forming coherent laser light by means of the second resonant cavity. The length of the structure of the passive dielectric layer (6) and the structure of a micro-nano pattern in the structure of the mode selection layer (8) are regulated and controlled, such that the mode distribution of array laser light is changed, and thus mode locking in the same phase is realized; and composite oscillation is generated by means of the second resonant cavity, thereby achieving efficient self-injection feedback.
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Inventors:
WANG ZHIYONG (CN)
DAI JINGJING (CN)
LAN TIAN (CN)
DAI JINGJING (CN)
LAN TIAN (CN)
Application Number:
PCT/CN2023/087989
Publication Date:
November 30, 2023
Filing Date:
April 13, 2023
Export Citation:
Assignee:
UNIV BEIJING TECHNOLOGY (CN)
International Classes:
H01S3/08; H01S3/067; H01S3/105; H01S5/125; H01S5/18
Foreign References:
| CN115000809A | 2022-09-02 | |||
| CN115189212A | 2022-10-14 | |||
| CN115173202A | 2022-10-11 | |||
| CN114300940A | 2022-04-08 | |||
| CN1916677A | 2007-02-21 | |||
| CN213367030U | 2021-06-04 | |||
| CN112310804A | 2021-02-02 | |||
| CN1877932A | 2006-12-13 | |||
| CN113328336A | 2021-08-31 | |||
| US5027359A | 1991-06-25 |
Attorney, Agent or Firm:
BEIJING HUI & XIN IP LAW OFFICE (CN)
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