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A fiber laser

A fiber laser and fiber grating technology, applied in lasers, laser components, phonon exciters, etc., can solve problems such as complex structure, difficulty in precise tuning of laser wavelength, difficulty in shortening fiber length, etc., and achieve high beam quality and environmental resistance Strong interference and stability improvement effect

Active Publication Date: 2020-02-04
NANTONG UNIVERSITY +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a fiber laser to solve the problems in the prior art that the structure is complex and the length of the fiber is difficult to shorten and the laser wavelength is difficult to precisely tune

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  • A fiber laser
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Embodiment Construction

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0036] The object of the present invention is to provide a fiber laser, which can improve the stability of the fiber laser, shorten the length of the fiber and precisely tune the laser wavelength.

[0037] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0038] figure...

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Abstract

The invention discloses an optical-fiber laser device. The optical-fiber laser device includes a saturable absorber device, ytterbium-doped optical fibers, a wavelength division multiplexer, a pumpingsource, single-mode optical fibers, a ray isolator, a polarization controller and a coupler; the saturable absorber device is melted in a laser cavity in the optical-fiber laser device, and in this way, the tunable accuracy of the wavelength of laser output by the optical-fiber laser device can be improved by adjusting the curving rate of the saturable absorber device. By the adoption of the saturable absorber device and the optical-fiber laser device, through a simple structure, the purpose can be achieved that the wavelength of the output pulse laser is tunable.

Description

technical field [0001] The invention relates to the field of fiber lasers, in particular to a fiber laser. Background technique [0002] Wavelength tunable fiber lasers are key components in high-speed and large-capacity optical communication systems, wavelength division multiplexing, and time division multiplexing systems. An important light source for optical test systems has been widely used in optical communication, optical sensing, spectral testing and other fields; pulsed laser light sources with pulse widths ranging from picoseconds to nanoseconds are widely used in lithography, industrial processing and other fields. [0003] At present, there are mainly two ways to obtain lasers with output pulses reaching nanosecond pulse widths: one way is to achieve it through Q-switched lasers, which is also a relatively traditional and mainly used method, but the pulse of Q-switched lasers The width is generally tens of nanoseconds to tens of nanoseconds, and it is difficult t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/067H01S3/0941H01S3/106H01S3/11
CPCH01S3/067H01S3/0941H01S3/1061H01S3/1115
Inventor 朱晓军徐晨章国安罗磊季彦呈申红明金丽曹张华陈俊杰曹娟段玮邹丽耿健
Owner NANTONG UNIVERSITY
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