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fiber-optic laser

A fiber laser and laser technology, applied in the field of lasers, can solve problems such as poor tuning effect of fiber lasers

Active Publication Date: 2020-03-06
SHENZHEN CCT THZ TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on this, it is necessary to provide a fiber laser for the problem that the tuning effect of the fiber laser is not good in the traditional graphene-based fiber laser

Method used

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Embodiment Construction

[0019] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0020] figure 1 is a schematic diagram of the fiber laser 100 of this embodiment. Such as figure 1 As shown, a fiber laser 100 includes a resonant optical circuit 110, a tuning device 120, and a current regulating device (not shown). The tuning device 120 is arranged on the resonant optical path 110, and the tuning device 120 includes a graphene film ( figure 1 not shown) and the first optical fiber ( figure 1 not shown). In this embodiment, the first optical fiber is a single-mode optical fiber. The graphene film covers the end face of the core at one end of the first optical fiber. The current regulating device is connected with the graphene film, and the current regulating device is used for electrifying the graphene film and ...

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Abstract

An optical fiber laser, comprising a pumping light source (140), a resonant optical circuit (110), a tuning device (120) and a current adjustment device; the pumping light source provides pumping light for the resonant optical circuit; the tuning device is provided on the resonant optical circuit, and the tuning device comprises a grapheme film (121) and a first optical fiber (122), the grapheme film covering the end face of a fiber core on one end of the first optical fiber; and the current adjustment device is connected to the grapheme film, and the current adjustment device is used for energizing the grapheme film and adjusting the current passing through the grapheme film. On one hand, as the current passing through the grapheme film is adjustable, the temperature of the grapheme film is adjustable, and the depth of modulation performed by the tuning device on the laser transmitted therethrough is changed, making the performance of the optical fiber laser tunable. On the other hand, the tuning device is an optical fiber device integrating the first optical fiber and the grapheme film, and therefore, the loss of an optical signal during transmission of same through the tuning device is small, enabling the optical fiber laser to have a better tuning effect.

Description

technical field [0001] The invention relates to the technical field of lasers, in particular to a fiber laser. Background technique [0002] Because graphene-based fiber lasers can generate high-frequency ultrashort pulses, they have broad prospects in many fields such as optical communications, optical fiber sensing, detection and diagnosis, biomedicine, precision microprocessing, and military affairs. Graphene is chemically stable, has strong electrical conductivity and optical conductivity, and is a new nanomaterial used as a saturable absorber for mode-locking of fiber lasers, so that the performance of fiber lasers is better. [0003] If the properties of graphene are tunable, then the performance of graphene-based fiber lasers can also be tunable. At present, graphene can be made into a field effect tube and applied to a fiber laser, and the performance of the graphene can be adjusted by adjusting the gate voltage of the field effect tube, so that the performance of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/067H01S3/107H01S3/11
CPCH01S3/06708H01S3/107H01S3/1106
Inventor 李程郑渚杨彬徐飞丁庆
Owner SHENZHEN CCT THZ TECH CO LTD
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