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Saturable absorber device and its preparation method, mode-locked fiber laser

A saturable absorption and fiber coupler technology, applied in the field of mode-locked fiber lasers, can solve problems such as slow response time, high cost, and cumbersome CNT preparation process, and achieve the effects of simplifying the manufacturing process, simple structure, and reducing preparation costs

Active Publication Date: 2019-11-26
SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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Problems solved by technology

[0004] The semiconductor saturable absorbing mirror SESAM has complex manufacturing process and high cost; the preparation process of graphene and carbon nanotube CNT is cumbersome, the third-order nonlinear optical effect is not strong, and the response time is slow, which is not conducive to being widely used in fiber lasers

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  • Saturable absorber device and its preparation method, mode-locked fiber laser
  • Saturable absorber device and its preparation method, mode-locked fiber laser
  • Saturable absorber device and its preparation method, mode-locked fiber laser

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Embodiment Construction

[0067] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0068] figure 1 is a schematic structural diagram of a saturable absorber device provided by an embodiment of the present invention, refer to figure 1 , the saturable absorber device includes: a first optical fiber 110, a perovskite quantum dot 120 and a first optical fiber plug 130, wherein the perovskite quantum dot 120 is attached to the end surface of the first end of the first optical fiber 110, the second A first end of an optical fiber 110 is inserted into the first optical fiber plug 130 .

[0069] Where...

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Abstract

The embodiment of the invention discloses a saturable absorber device, a preparation method thereof and a mode-locking fiber laser. The saturable absorber device comprises a first fiber, perovskite quantum dots and a first fiber plug, wherein the perovskite quantum dots are adhered onto the end face of the first end of the first fiber; the first end of the first fiber is inserted into the first fiber plug. Through the technical scheme provided by the embodiment of the invention, the perovskite quantum dots are adhered onto the end face of the first end of the first fiber, simultaneously, the first end of the first fiber is inserted into the first fiber plug to form the saturable absorber device, the formed saturable absorber device has higher third-order nonlinear optical effect and shorter response time, simultaneously, the saturable absorber device is simple in structure, the manufacturing technology of the saturable absorber device can be simplified, and the preparation cost of thesaturable absorber device is reduced.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of lasers, in particular to a saturable absorber device, a preparation method thereof, and a mode-locked fiber laser. Background technique [0002] A mode-locked fiber laser refers to mode-locking by adding a mode-locking structure in the resonator of the fiber laser to generate ultrashort pulses. [0003] At present, the mode-locking structure is mainly divided into active mode-locking and passive mode-locking. Passive mode-locking mainly uses the nonlinear effect in the optical fiber to complete the mode-locking mechanism based on a saturable absorber. Saturable absorbers commonly used in the prior art include semiconductor saturable absorber mirror SESAM, graphene and carbon nanotube CNT. [0004] The semiconductor saturable absorbing mirror SESAM has complex manufacturing process and high cost; the preparation process of graphene and carbon nanotube CNT is cumbersome, the third...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/11H01S3/067
CPCH01S3/067H01S3/06708H01S3/1118
Inventor 文垚张新海时华峰张帆
Owner SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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