Local area optical filter having adjustable widths based on disorder and design method thereof

A filter and local area technology, applied in the field of optical filters, can solve the problem that the channel width of the optical filter cannot be adjusted

Inactive Publication Date: 2016-11-09
尹红伟
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides a disorder-based width-adjustable local optical filter and its design method, the purpose

Method used

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  • Local area optical filter having adjustable widths based on disorder and design method thereof
  • Local area optical filter having adjustable widths based on disorder and design method thereof
  • Local area optical filter having adjustable widths based on disorder and design method thereof

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Embodiment Construction

[0080] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0081] A disorder-based width-tunable local filter, based on the reflector-cavity structure, according to the negative correlation between channel width and channel intensity factor, adjust the disorder factor of the reflector-cavity structure to change the channel intensity factor and separation factor, thereby determining the reflection coefficient of the reflector and / or the optical thickness of the cavity, and obtaining a local filter with adjustable channel width;

[0082] Once the disorder factor is determined, the reflection coefficient in the reflector-cavity structure and the optical thickness of the cavity are determined accordingly;

[0083] The reflector-cavity structure includes N+1 reflectors (R 1 , R 2 ,...,R N+1 ) and N cavities (C 1 ,C 2 ,...,CN ),Such as figure 1 shown;

[0084] Wherein, the disorder factor of the reflector-cavi...

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Abstract

The invention discloses a local area optical filter having adjustable widths based on disorder and a design method thereof. The design of the local area optical filter is used to adjust disorder of a reflector-cavity structure, and adopts separation factors and intensity factors, or transmittance and the intensity factors as a criteria of disorder adjustment effect. After a plurality of times of optimization processing of the disorder of the reflector-cavity structure, all channel wavelengths and wavelengths outside channels can finally reach the preset separation factors, the preset intensity factors, and the preset transmittance. A transmission performance is expressed by the transmittance of the channel wavelengths approximating one and the transmittance of the wavelengths outside the channels approximating zero, and in addition, the widths of the channels are independent and adjustable. The reflector-cavity structure is corresponding to various physical realization, and requirements of different application scenes are well satisfied.

Description

technical field [0001] The invention belongs to the field of optical filters, in particular to a disorder-based local optical filter with adjustable width and a design method thereof. Background technique [0002] "Nature" magazine published a paper in 2004, proposing that "disorder is a new order" and "disordered devices may have better performance than traditional ordered devices", see reference [1]. In a disordered medium, waves are localized inside the medium—that is, the Anderson localization effect, see reference [2]. [0003] The localization of waves in a one-dimensional disordered medium is represented by a series of randomly distributed resonant transmission wavelengths with higher transmittance and higher intensity distribution, see reference [3]. These resonant transmission wavelengths can be used to control the laser output spectrum and reduce the laser working threshold. The one-dimensional disordered media reported in the literature include layered media with...

Claims

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Application Information

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IPC IPC(8): G02B5/26G02B27/00
CPCG02B5/26G02B27/0012
Inventor 尹红伟
Owner 尹红伟
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