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Title:
NANOSECOND PULSED FIBER LASER DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/090957
Kind Code:
A1
Abstract:
A nanosecond pulsed fiber laser device, comprising a first stage pulsed laser generator (1), a second stage pulsed laser generator (2), a third stage pulsed laser generator (3) and a continuous laser diode (4), the first stage pulsed laser generator (1) comprising a laser diode (5); an output end of the first stage pulsed laser generator (1) is connected to an input end of the second stage pulsed laser generator (2); an output end of the second stage pulsed laser generator (2) and the continuous laser diode (4) are respectively connected to one of two input ends of the third stage pulsed laser generator (3); and the first stage pulsed laser generator (1), the second stage pulsed laser generator (2) and the third stage pulsed laser generator (3) form a series cascade structure. A 1.55-micron pulsed laser generated by the laser diode (5) is used as an initial pumping source, enabling the direct generation of a 3.47-micron nanosecond pulsed laser. The nanosecond pulsed fiber laser device has advantages of low loss, compactness and integration.

Inventors:
ZHONG HAIZHE (CN)
YANG JIANLONG (CN)
HU BIN (CN)
WANG SHIWEI (CN)
FAN DIANYUAN (CN)
Application Number:
CN2018/071146
Publication Date:
May 16, 2019
Filing Date:
January 04, 2018
Export Citation:
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Assignee:
UNIV SHENZHEN (518060, CN)
International Classes:
H01S3/067; H01S3/0941; H01S5/40
Domestic Patent References:
WO2011009198A12011-01-27
Foreign References:
CN106374327A2017-02-01
CN103825164A2014-05-28
CN104934843A2015-09-23
CN105720465A2016-06-29
US20070133626A12007-06-14
US5621749A1997-04-15
Other References:
YIN KE ET AL.: "Highly stable, monolithic, single-mode mid-infrared supercontinuum source based on low-loss fusion spliced silica and fluoride fibers", OPTICS LETTERS, vol. 41, no. 5, 22 February 2016 (2016-02-22) - 1 March 2016 (2016-03-01), pages 946 - 949, XP055607513, ISSN: 0146-9592, DOI: 10.1364/OL.41.000946
Attorney, Agent or Firm:
HENSEN INTELLECTUAL PROPERTY FIRM (10H Shangbu Building, No.68 Nanyuan Road Futia, Shenzhen Guangdong 0, 518000, CN)
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