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A kind of preparation method of solid-state mode-locked laser absorption device

A mode-locked laser and device technology, applied in the field of optics, can solve problems such as inability to achieve evanescent wave mode-locking, achieve good chemical stability, high mechanical strength, and reduce optical damage

Inactive Publication Date: 2019-06-28
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Claims
  • Application Information

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Problems solved by technology

In the field of solid-state mode-locked lasers, since evanescent wave mode-locking cannot be achieved, there is no other way but to increase the damage threshold of broadband absorbers.

Method used

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  • A kind of preparation method of solid-state mode-locked laser absorption device

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Embodiment Construction

[0026] see figure 1 , a solid-state mode-locked laser absorption device, including a broadband saturable absorber and silicon dioxide composite inorganic film and a quartz plate closely attached to the film; the upper surface of the broadband saturable absorber and silicon dioxide composite inorganic film is coated with High reflection film; the lower surface of the quartz plate is coated with a total reflection film; the reflectivity of the high reflection film is 90% to 99%; the reflectivity of the total reflection film is greater than 99.5%; the saturable absorber includes carbon nanotubes, graphene , topological bodies, molybdenum sulfide, tungsten sulfide.

[0027] A method for preparing a solid-state mode-locked laser absorption device, comprising the following steps:

[0028] 1] Make a broadband saturable absorber dispersion; use the liquid phase separation method to C 2 h 6 The mixed solution of O and water (molar ratio is 1:1) is used as the solvent to make a broad...

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Abstract

The invention relates to a high-damage-threshold broadband saturable absorption device for a solid mode-locked laser and a preparation method of the absorption device. The absorption device comprises a broadband saturable absorber, a silica composite inorganic thin film and a quartz plate which is tightly bonded with the thin film, wherein the upper surfaces of the broadband saturable absorber and the silica composite inorganic thin film are coated with high-reflective films; and the lower surface of the quartz plate is coated with a full-reflective film. The absorption device for the solid mode-locked laser is good in stability and high in optical damage threshold.

Description

technical field [0001] The invention belongs to the field of optics, and relates to a preparation method of a solid-state mode-locked laser absorption device, in particular to a high damage threshold broadband saturable absorption device for a solid-state mode-locked laser and a preparation method. Background technique [0002] High-power all-solid-state mode-locked lasers have broad application prospects in the fields of national defense construction, precision processing, high-tech industrialization, and technological frontiers. With the invention and maturity of semiconductor saturable absorber mirror (SESAM), the passive mode-locking technology realized by saturable absorber has become an important means to realize all-solid-state ultrashort pulse laser output. At present, many commercialized passive mode-locked ultrashort pulse lasers are based on SESAM passive mode-locked technology. As a traditional passive mode-locked absorber, SESAM can generate both femtosecond la...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/16H01S3/098
CPCH01S3/08018H01S3/16
Inventor 王勇刚王茜李璐孙航段利娜
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI