Low loss jammed-array wideband sawtooth filter based on a finite reflection virtually imaged array

Zhongwei Tan; Dandan Cao; Zhichao Ding

doi:10.1117/1.OE.57.3.037108

20 March 2018 Low loss jammed-array wideband sawtooth filter based on a finite reflection virtually imaged array

Zhongwei Tan, Dandan Cao, Zhichao Ding

Author Affiliations +

Optical Engineering, Vol. 57, Issue 3, 037108 (March 2018). https://doi.org/10.1117/1.OE.57.3.037108

Abstract

An edge filter is a potential technology in the fiber Bragg grating interrogation that has the advantages of fast response speed and suitability for dynamic measurement. To build a low loss, wideband jammed-array wideband sawtooth (JAWS) filter, a finite reflection virtually imaged array (FRVIA) is proposed and demonstrated. FRVIA is different from the virtually imaged phased array in that it has a low reflective front end. This change will lead to many differences in the device’s performance in output optical intensity distribution, spectral resolution, output aperture, and tolerance of the manufacture errors. A low loss, wideband JAWS filter based on an FRVIA can provide an edge filter for each channel, respectively.

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Zhongwei Tan, Dandan Cao, and Zhichao Ding "Low loss jammed-array wideband sawtooth filter based on a finite reflection virtually imaged array," Optical Engineering 57(3), 037108 (20 March 2018). https://doi.org/10.1117/1.OE.57.3.037108

Received: 10 October 2017; Accepted: 22 February 2018; Published: 20 March 2018

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KEYWORDS

Optical filters

Reflectivity

Fiber Bragg gratings

Image filtering

Imaging arrays

Optics manufacturing

Sensors

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