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Functional material filled micro-structure optical fiber based tunable dual-channel grating filter

A technology of micro-structured optical fiber and grating filter, which is applied in cladding optical fiber, optical waveguide, light guide, optical, etc., can solve the problems of narrow tuning range, inflexible filter implementation mode, and few tunable modes, and achieve wide tuning range , significant production practical significance, and the effects of various tuning methods

Inactive Publication Date: 2009-09-02
NANKAI UNIV
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Problems solved by technology

[0004] However, the above filters still have problems such as inflexible implementation, few tunable methods, and narrow tuning range.

Method used

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  • Functional material filled micro-structure optical fiber based tunable dual-channel grating filter
  • Functional material filled micro-structure optical fiber based tunable dual-channel grating filter
  • Functional material filled micro-structure optical fiber based tunable dual-channel grating filter

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Embodiment Construction

[0026] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] figure 1 It is a schematic diagram of a tunable dual-channel fiber grating filter based on functional materials filling microstructured fibers.

[0028] see figure 1 , the present invention provides a tunable dual-channel grating filter based on a functional material-filled microstructure fiber, which is composed of a birefringent microstructure fiber grating filled with a functional material and a control device, and the birefringent microstructure fiber filled with a functional material The light grid is located inside the control unit, see figure 2 , image 3 .

[0029] In the present invention, the birefringent microstructure fiber grating filled with functional materials refers to a fiber grating with periodic changes in ref...

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Abstract

The invention discloses a functional material filled micro-structure optical fiber based tunable dual-channel grating filter which comprises a birefringent micro-structure optical fiber grating filled with functional material and a control device, wherein the birefringent micro-structure optical fiber grating filled with the functional material is positioned in the control device, and the control device is used for generating, loading and regulating electric field, temperature, optical field, magnetic field or sound field which can change the refractive index of the functional material in the birefringent optical fiber. Compared with the prior art, the filter has the advantages of flexible realization way, varied tuning mode, wide tuning range, and can realize the electric tuning. The invention can be widely applied to the fields of tunable lasers, optical fiber sensors, and the like, is suitable for large-scale popularization and application and has great significance of production practice.

Description

technical field [0001] The invention relates to the technical field of microstructured optical fibers, optical fiber gratings and applications thereof, in particular to a tunable dual-channel grating filter based on functional materials filling microstructured optical fibers. Background technique [0002] Microstructure Optical Fiber (Microstructure Optical Fiber), also known as Photonic Crystal Fiber (Photonic Crystal Fiber) or Hole Fiber (Holey Fiber), which distributes extending air holes along the fiber axis according to certain rules, can be divided into Two types: index-guided microstructured fiber and photonic bandgap microstructured fiber. The former is similar to the light guiding mechanism of traditional optical fibers. The refractive index of the core is higher than the effective refractive index of the surrounding cladding composed of air holes, and the light is confined to transmit in the core; while the cladding of the photonic bandgap microstructured fiber has...

Claims

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Application Information

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IPC IPC(8): G02F1/01G02F1/00G02B6/02
Inventor 刘艳格许剑波王志邹冰刘波张昊
Owner NANKAI UNIV
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