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Electromagnet driving type Fabry-Perot optical filter adjustable in wave length

An electromagnetic drive and filter technology, which is applied in optics, instruments, optical components, etc., can solve problems such as structural complexity, wavelength tuning non-uniformity, and product diversity, so as to reduce production difficulty and cost, overcome various disadvantages, Effect of Large Wavelength Tuning

Active Publication Date: 2014-08-06
WUHAN WUTOS
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an electromagnetically driven wavelength-capable tuned Fabry-Perot optical filter

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  • Electromagnet driving type Fabry-Perot optical filter adjustable in wave length
  • Electromagnet driving type Fabry-Perot optical filter adjustable in wave length
  • Electromagnet driving type Fabry-Perot optical filter adjustable in wave length

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Embodiment Construction

[0037] In order to make the object, technical solution and advantages of the present invention clearer, 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, not to limit the present invention.

[0038] The electromagnetically driven wavelength-tunable Fabry-Perot optical filter of the embodiment of the present invention includes filters with a single-side stroke structure and a double-side stroke structure.

[0039] Such as figure 1 As shown, it is an electromagnetically driven wavelength-tunable Fabry-Perot optical filter with a single-side stroke structure, including two optical fibers 9, which are respectively connected to two oppositely arranged first waveguide structures and second waveguide structures, Under the electromagnetic force, the distance between the first waveguide structu...

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Abstract

The invention discloses an electromagnet driving type Fabry-Perot optical filter adjustable in wave length. The electromagnet driving type Fabry-Perot optical filter adjustable in wave length comprises a first waveguide structure and a second waveguide structure which are arranged oppositely. The distance between the two waveguide structures is changed through the acting force of an electromagnetic field so that the wave length can be adjusted. The first waveguide structure comprises a first waveguide sleeved with a cylindrical permanent magnet. An electromagnetic coil is arranged outside the cylindrical permanent magnet. A high reflection structural layer is placed on the end face of the first waveguide and is fixed to a metal film elastic sheet. The novel driving mode of electromagnetic force is adopted so that the length of a Fabry-Perot resonant cavity can be changed to achieve wave length tuning. Not only are the advantages of the Fabry-Perot tunable filter fully played, but also the various defects of a piezoelectric ceramic driving scheme are effectively overcome, product consistency is improved, and production difficulty and production cost are lowered.

Description

technical field [0001] The invention relates to a Bry-Perot optical filter, in particular to an electromagnetically driven wavelength-tunable Fabry-Perot optical filter. Background technique [0002] Wavelength tunable optical filters are very important optical devices. In optical communication, wavelength tunable optical filter can be used in wavelength division multiplexing network; in optical sensing system, it is also the core device in fiber Bragg grating demodulation system and Fabry-Perot demodulation system. In addition, in the fields of fiber lasers and spectral analysis, tunable optical filters also have important applications. [0003] In terms of realization principles, wavelength tunable optical filters mainly include ring resonator technology, Mach-Zehnder interference technology, grating diffraction effect technology, dielectric thin film technology and Fabry-Perot resonator technology. Ring resonator (CN200810040447.6) and Mach-Zehnder interference technolo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B26/00
Inventor 董雷熊岩印新达陈宏波
Owner WUHAN WUTOS
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