Nonlinear fiber and ultrashort pulse generating device applying same

A technology of nonlinear optical fiber and generating device, which is applied in nonlinear optics, clad optical fiber, optical waveguide and light guide, etc., and can solve the problems of low nonlinear efficiency and coupling efficiency, limited incident pulse power of optical fiber, and process complexity. , to achieve the effect of improving the coupling efficiency, improving the efficiency of nonlinear optical action, and reducing the complexity of the process

Active Publication Date: 2011-08-10
WUHAN POST & TELECOMM RES INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] To sum up, the current optical fiber generally has the defects of limited fiber incident pulse...

Method used

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  • Nonlinear fiber and ultrashort pulse generating device applying same
  • Nonlinear fiber and ultrashort pulse generating device applying same
  • Nonlinear fiber and ultrashort pulse generating device applying same

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Embodiment Construction

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0028] see figure 1 As shown, the nonlinear optical fiber provided by the embodiment of the present invention includes an outer cladding 1, an inner cladding 2, an optical fiber core 3 and a packaging window 4, see figure 2 As shown, the inner cladding 2 is arranged in the outer cladding 1, the outer cladding 1 is a quartz or glass tube, and the inner cladding 2 is made of one of electrolyte, metal, polymer or silver coating. The hollow part in the inner cladding 2 constitutes the fiber core region 3, and the fiber core region 3 is filled with a nonlinear gas (preferably an inert gas), and an encapsulation window 4 for sealing is provided at both ends.

[0029] The encapsulation window 4 is made of a material with high transmittance of the corresponding wavelength, and its diameter is not smaller than that of the outer cladding 1 . In order...

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Abstract

The invention discloses a nonlinear fiber and an ultrashort pulse generating device applying the nonlinear fiber, relating to a special fiber and the application field of the special fiber. The nonlinear fiber comprises an external cladding layer, an internal cladding layer and an optical fiber core region, wherein the internal cladding layer is arranged in the external cladding layer; the optical fiber core region is formed by the hollow part in the internal cladding layer; the optical fiber core region is filled with nonlinear gas which is inert gas; and both ends of the optical fiber core region are respectively provided with a packaging window for sealing. The ultrashort pulse generating device comprises a picosecond pulse source, a focusing subsystem, an optical fiber and a dispersion compensating subsystem which are sequentially connected, wherein the optical fiber is the nonlinear optical fiber. The device can increase the anti-damage threshold of the optical fiber so as to increase the optical power density of the maximum unit area of incident light signals and improve the efficiency of optical nonlinear effect and the coupling efficiency, therefore, the optical fiber with low process complexity level and relatively low cost obtains the same or more superior performances.

Description

technical field [0001] The invention relates to special optical fiber and its application field, in particular to a nonlinear optical fiber and an ultrashort pulse generating device using the optical fiber. Background technique [0002] With the gradual increase of investment in information construction and the gradual improvement of information infrastructure, the demand for optical fiber cables and optoelectronic devices in the communication industry and non-communication industries continues to grow, and is showing a trend of diversification. At present, the specifications and types of optical fibers are limited, and it is difficult to To meet various specific needs, special optical fibers with different characteristics and functions are urgently needed to be developed. As an important supplement to the traditional optical fiber industry, special optical fiber has become an industry full of opportunities and challenges, providing a stage for horizontal development and ver...

Claims

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Application Information

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IPC IPC(8): G02B6/032G02F1/365G02B6/036G02B1/11G02B6/02
Inventor 张晓吟邱英杨铸
Owner WUHAN POST & TELECOMM RES INST CO LTD
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