Title:
TRIPLE-CLAD FIBER, PUMP COMBINER, FIBER GRATING, AND FIBER LASER
Document Type and Number:
WIPO Patent Application WO/2020/259643
Kind Code:
A1
Abstract:
A triple-clad fiber, a pump combiner (2, 7), a fiber grating (3, 5), and a fiber laser. A triple-clad passive fiber comprises a core (13), an inner cladding (14) covering the outer surface of the core (13), an outer cladding (15) covering the outer surface of the inner cladding (14), and a coating (16) covering the outer surface of the outer cladding (15). The diameter of the core (13) falls within the range of 10 to 50 micrometers, the diameter of the inner cladding (14) falls within the range of 250 to 800 micrometers, the diameter of the outer cladding (15) is greater than that of the inner cladding (14), and the diameter of the outer cladding (15) falls within the range of 300 to 1,000 micrometers. Alternatively, the diameter of the inner cladding (14) falls within the range of 80 to 100 micrometers, and the diameter of the outer cladding (15) falls within the range of 110 to 130 micrometers. The outer cladding (15) of the triple-clad passive fiber covering the outer surface of the inner cladding (14) greatly reduces the damage of the pump light on the organic coating (16). As a total reflection plane, the coating (16) has an extremely high damage threshold, thereby improving the stability and reliability of the fiber laser.
Inventors:
YANG DEQUAN (CN)
WANG YING (CN)
LV ZHANGYONG (CN)
LI HUIHUI (CN)
SHI TENGFEI (CN)
JIANG FENG (CN)
WANG YING (CN)
LV ZHANGYONG (CN)
LI HUIHUI (CN)
SHI TENGFEI (CN)
JIANG FENG (CN)
Application Number:
PCT/CN2020/098330
Publication Date:
December 30, 2020
Filing Date:
June 26, 2020
Export Citation:
Assignee:
SUZHOU MAXPHOTONICS CO LTD (CN)
MAXPHOTONICS CO LTD (CN)
MAXPHOTONICS CO LTD (CN)
International Classes:
G02B6/036; G02B6/02; H01S3/094
Foreign References:
| CN110187437A | 2019-08-30 | |||
| CN210401734U | 2020-04-24 | |||
| CN102645699A | 2012-08-22 | |||
| CN109038194A | 2018-12-18 | |||
| CN107132614A | 2017-09-05 | |||
| CN201656240U | 2010-11-24 | |||
| US20170194761A1 | 2017-07-06 |
Other References:
WU, JUAN: "Non-official translation: Research on Low Loss Pump Combiner Technology", CHINA MASTER’S THESES, no. 3, 15 March 2015 (2015-03-15), pages 1 - 93, XP009525514, ISSN: 1674-0246
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