Multi-cavity cascade-connection photon crystal multicenter wave filter

A photonic crystal and multi-channel technology, applied in instruments, light guides, optics, etc., can solve the problems of difficult control of channel performance and high design difficulty
CN101246237AInactive Publication Date: 2008-08-20SHENZHEN UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHENZHEN UNIV
Publication Date
2008-08-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a multi-photons crystal imperfect cavity cascaded multi-channel filter, which has the structure as follows. A defect is equipped in the middle of the central symmetrical or non-symmetric periodical photos crystal, that is the photon crystal single defect cavity, many imperfect cavities cascade and form the multi-channel filter. The number of channel is equal to the number of cavity; the intensity of channel is proportional to the number of cavity. The position of channel is mainly determined by the thickness of imperfect layer, the channel range is determined by the periodicity of photon crystal.
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Description

(1) Technical field

[0001] The invention relates to a one-dimensional photonic crystal multi-channel filter structure formed by cascading multiple photonic crystal single-defect cavities. (2) Background technology

[0002] In the modern information society, with the development of technology, the amount of information that needs to be transmitted continues to increase. Modern optical communication devices are developing towards high capacity, large broadband, integration, and miniaturization. The dense wavelength division multiplexing (DWDM) technology Rapid practical application provides an easy-to-implement method for long-distance transmission of high-speed, large-capacity information, and also provides the possibility for the development of all-optical communication networks based on wavelength selection. Optical wavelength division multiplexing (WDM) technology is a technology that can combine (multiplex) optical signals of different wavelengths for transmission, and ca...

Claims

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