Title:
OPTICAL FIBER LASER COUPLER
Document Type and Number:
WIPO Patent Application WO/2021/008074
Kind Code:
A1
Abstract:
An optical fiber laser coupler, comprising a laser input optical cable, a laser shaping and coupling device, and a multi-beam-mode energy transmission optical fiber (205). The multi-beam-mode energy transmission optical fiber (205) comprises a circular fiber core (105) and annular fiber cores (106, 107), and each annular fiber core (106, 107) is coaxial with the circular fiber core (105); a fluorine-doped layer (109) is disposed between the circular fiber core (105) and the annular fiber core (106, 107), and the fluorine-doped layer (109) is also disposed between adjacent annular fiber cores (106, 107); an adjustable collimating lens group (203) and an adjustable focusing lens group (204) of the laser shaping and coupling device can horizontally move along a direction of a laser beam in a housing of the laser shaping and coupling device; the laser shaping and coupling device is configured to couple a laser beam input by the laser input optical cable, inputting the laser beam into different fiber cores of the multi-beam-mode energy transmission optical fiber (205), and obtaining output laser beams in different beam modes. The present invention combines different fiber core structures of the multi-beam-mode energy transmission optical fiber by means of the laser shaping and coupling device, and thus can independently implement real-time switching between different beam modes.
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Inventors:
SHEN XIANG (CN)
YAN DAPENG (CN)
LI RONG (CN)
ZHU QIXIN (CN)
HUANG ZHONGYA (CN)
SHI JIANHONG (CN)
TANG LILEI (CN)
ZHAO WENLI (CN)
LEI XING (CN)
LI CHENG (CN)
YAN DAPENG (CN)
LI RONG (CN)
ZHU QIXIN (CN)
HUANG ZHONGYA (CN)
SHI JIANHONG (CN)
TANG LILEI (CN)
ZHAO WENLI (CN)
LEI XING (CN)
LI CHENG (CN)
Application Number:
PCT/CN2019/125246
Publication Date:
January 21, 2021
Filing Date:
December 13, 2019
Export Citation:
Assignee:
WUHAN RAYCUS FIBER LASER TECHNOLOGIES CO LTD (CN)
International Classes:
G02B6/036; G02B6/32; G02B7/02; G02B27/09
Domestic Patent References:
| WO2002041063A2 | 2002-05-23 |
Foreign References:
| CN110320593A | 2019-10-11 | |||
| CN102934298A | 2013-02-13 | |||
| CN108663745A | 2018-10-16 | |||
| CN108155548A | 2018-06-12 | |||
| CN105223661A | 2016-01-06 | |||
| EP0864892A2 | 1998-09-16 |
Attorney, Agent or Firm:
CN-KNOWHOW INTELLECTUAL PROPERTY AGENT LIMITED (CN)
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