Integratable coupling microcavity optical filter

An optical filter and coupled microcavity technology, applied in the field of coupled microcavity optical filters, can solve problems such as increasing the processing difficulty of devices, and achieve the effects of reducing processing difficulty, reducing cost and improving efficiency

Inactive Publication Date: 2010-06-09
XIDIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the disadvantage of this structure is that the microring resonator requires input/output waveguide for coupling. In order to achieve high coupling efficiency, it is necessary to strictly control

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  • Integratable coupling microcavity optical filter
  • Integratable coupling microcavity optical filter
  • Integratable coupling microcavity optical filter

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Example Embodiment

[0021] See figure 1 The structure in the preferred embodiment of the present invention includes spiral ring microcavity 1, spiral ring microcavity 2, input waveguide 3, output waveguide 4, coupling region 5; the two spiral ring microcavities are symmetrical, and the spiral ring microcavity The outer ring 11 of 1 and the outer ring 21 of the spiral ring microcavity 2 automatically form gaps due to the structural characteristics. The gap of the spiral ring microcavity 1 is connected to the input waveguide 3, and the spiral ring microcavity 2 is connected to the gap of the outer ring 21. Output waveguide 4. The inner ring 12 of the spiral annular microcavity 1 and the inner ring 22 of the spiral annular microcavity 2 are annular. The outer ring 11 and the inner ring 12 are concentric, and the outer ring 21 and the inner ring 22 are concentric.

[0022] The principle and working mode of the present invention are as follows: the spiral ring microcavity 1 and the spiral ring microcavi...

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Abstract

The invention provides an integratable coupling microcavity optical filter which comprises a microcavity and a waveguide. The microcavity comprises an inner ring and an outer ring, and the outer ring is in a helical shape. The integratable coupling microcavity optical filter adopts the helical microcavity, and the notch is directly connected with input and output waveguide, thereby improving the coupling efficiency. The helical microcavity is directly connected with the waveguide, has the directional input and output property, and also has the advantages of high Q value and narrow linewidth. The structure is compact, is easy to integrate, does not need to couple input/output by waveguide, reduces the processing degree of devices, decreases the preparing cost of the devices, and is especially suitable for preparing multi-functional filters with high-property integrated optical chips.

Description

technical field [0001] The invention belongs to the field of optical communication and information processing devices, and in particular relates to an integrable coupling microcavity optical filter. Background technique [0002] The rapid development of optical communication and information processing has put forward new requirements for optoelectronic devices. These requirements include high efficiency, fast response, miniaturization, high integration and low cost. As a new type of integrated optical device, the optical microcavity based on Whispering-Gallery Modes (hereinafter referred to as WGM) has attracted extensive attention from scholars at home and abroad. The so-called whispering gallery optical microcavity refers to a resonant cavity whose geometric scale can be compared with the wavelength of light and has a high quality factor (Q). The optical microresonator is generally composed of a high-refractive-index light-guiding layer and a low-refractive-index confine...

Claims

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Application Information

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IPC IPC(8): G02B6/26
Inventor 尚磊文爱军王同刚刘将
Owner XIDIAN UNIV
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