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A Plasmon Resonant Wavelength Division Multiplexer

A technology of wavelength division multiplexer and plasmon, which is applied in the direction of instruments, optical components, optical waveguides and light guides, etc.

Active Publication Date: 2019-07-12
GUILIN UNIV OF ELECTRONIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, less attention has been paid to existing plasmonic wavelength division multiplexers

Method used

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  • A Plasmon Resonant Wavelength Division Multiplexer
  • A Plasmon Resonant Wavelength Division Multiplexer
  • A Plasmon Resonant Wavelength Division Multiplexer

Examples

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Embodiment Construction

[0022] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to specific examples and drawings. It should be noted that the directional terms mentioned in the examples, such as "upper", "lower", "middle", "left", "right", "front", "rear", etc., are only directions with reference to the drawings. Therefore, the directions used are only for illustration and not for limiting the protection scope of the present invention.

[0023] A kind of plasmon resonance wavelength division multiplexer, such as figure 1 As shown, it is composed of a metal film 1 and an incident waveguide 2, two or more outgoing waveguides 3 and two or more resonant cavities 4 opened on the metal film 1 in a hollow shape. The number of exit waveguides 3 and resonant cavities 4 is the same, and one exit waveguide 3 corresponds to one resonant cavity 4. The incident waveguide 2 forms a pla...

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Abstract

The invention discloses a plasmon resonant wavelength division multiplexer which is composed of a metal film, one incident waveguide, more than two output waveguides and more than two resonant cavities. The incident waveguide, the output waveguides and resonant cavities are formed in the metal film in a hollowed way, the amount of the output waveguides is the same with that of the resonant cavities, and one output waveguide corresponds to one resonant cavity. The resonant cavities are arranged in the two sides and / or rear end of the incident waveguide and the output waveguides are arranged inthe other side of the resonant cavities to form the multiplexer, one metal film is additionally arranged in the internal of each resonant cavity so that the internal of the resonant cavity can form anF-P cavity, and surface plasmon SPP and the resonant cavities realize resonant coupling; thus, a resonant coupling effect between the surface plasmon SPP and the resonant cavities is utilized, and the sizes of the metal films in the resonant cavities are adjusted to separate multiple paths of plasmon signals and adjust the wavelengths of different channels; and the coupling distance can be changed to realize a specific coupling effect.

Description

Technical field [0001] The invention relates to the technical field of micro-nano photons, in particular to a plasmon resonance wavelength division multiplexer. Background technique [0002] SPP devices in highly integrated optical circuits have broad application prospects because they overcome the traditional diffraction limit and can manipulate light on the sub-wavelength scale. Among the various plasma SPP structures that have been proposed, the metal-medium-metal (MIM) waveguide structure can support surface plasmon (SPPs) mode transmission and confine the modes in the dielectric layer, and has a strong resistance to light. The advantages of local capabilities, simplicity and ease of high integration, have great application potential in nano-integrated optics and devices. [0003] With the continuous development of science and technology, wavelength division multiplexers used in wavelength selection play an important role in optical calculations and electrical signal propagati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/12G02B6/122
CPCG02B6/12007G02B6/1226
Inventor 肖功利徐俊林韦清臣窦婉滢刘利刘小刚杨秀华杨宏艳
Owner GUILIN UNIV OF ELECTRONIC TECH
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