Optimization of Dynamic Matched Grating Filtering Demodulation Drived by Piezoelectric Ceramic

Zi-jun, 潘子军 Pan; Jianlin, 赵建林 Zhao; En-pu, 李恩普 Li; Wang-min, 周王民 Zhou; Bi-qiang, 姜碧强 Jiang; Quan-chao, 吕全超 Lv; Zhen-long, 成振龙 Cheng

doi:10.3788/gzxb20103902.0243

Cited by 4 publications

(2 citation statements)

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“…Fiber Bragg grating (FBG) sensors have attracted increasing attention, because they provide considerable advantages over conventional electrical sensors. [1][2][3][4][5][6][7] Several FBG sensor interrogation methods-such as dynamic matched grating filtering, 8 Fabry-Perot filter method, 9,10 Mach-Zehnder modulator method, 11,12 tunable narrow-line width laser scanning, 13 and arrayed waveguide grating (AWG) interrogation- 14,15 have been proposed. Among these FBG sensor interrogation methods, the dynamic matched grating filtering method exhibits the simplest structure and the lowest accuracy.…”

Section: Introductionmentioning

confidence: 99%

Effect of polarization sensitivity on ultrasmall silicon-on-insulator-based arrayed waveguide grating for fiber Bragg grating sensor interrogation

Xie

Hong

et al. 2018

Opt. Eng.

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Polarization sensitivity is an important factor that affects the interrogation of ultrasmall arrayed waveguide grating (AWG) for fiber Bragg grating (FBG) sensor. An ultrasmall 1 × 8 silicon-on-insulator (SoI) AWG with a core size of less than 530 μm × 480 μm is proposed in this study. This ultrasmall SoI AWG exhibits good transmission spectra and high polarization sensitivity. The increased channel numbers and tight structure increase the polarization sensitivity of AWG. Temperature interrogation experiments show that the FBG sensor interrogation is drastically affected when the effect of polarization sensitivity on the ultrasmall AWG is sufficiently large.

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Section: Introductionmentioning

confidence: 99%

Effect of polarization sensitivity on ultrasmall silicon-on-insulator-based arrayed waveguide grating for fiber Bragg grating sensor interrogation

Xie

Hong

et al. 2018

Opt. Eng.

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“…So an efficient and low-cost approach to interrogate LPFG sensing signal is earnestly needed to satisfy the request of the practical LPFG application. Several techniques could been considered to interrogate the LPFG sensing signal, such as Fabry-Perot (F-P) filter method and the intensity interrogation method based on change of optical intensity [4][5][6][7]. However these techniques have their disadvantage, such as the high cost and complicated fabrication of F-P filter, bad resolution of intensity interrogation method.…”

Section: Introductionmentioning

confidence: 99%

Signal Demodulation of High-Temperature LPFG Strain Sensor Based on Arrayed Waveguide Grating

Zhang

Liu

2014

AMM

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Among all the kinds of optical fiber sensors, FBG and LPFG become the main current owing to its features and advantages. LPFG sensor is especially suitable in high temperature sensing and stimulates more related research interests. The key point of LPFG sensing is the signal demodulation and processing. In this paper, signal demodulation of the LPFG strain sensor was studied based on Arrayed Waveguide Grating. The fabrication method and high temperature performance of this sensor were presented,and a novel strain signal demodulation method was presented based on Arrayed Waveguide Grating (AWG) device by equi-intensity cantilever beam. The experimental results demonstrated that the signal demodulation technology based on AWG has many advantages, such as simple structure, innovative and reliable performance.

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Investigation of Ultrasmall <inline-formula> <tex-math notation="LaTeX">$1\times N$</tex-math></inline-formula> AWG for SOI-Based AWG Demodulation Integration Microsystem

Gao

et al. 2015

IEEE Photonics J.

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Optimization of Dynamic Matched Grating Filtering Demodulation Drived by Piezoelectric Ceramic

Cited by 4 publications

References 0 publications

Effect of polarization sensitivity on ultrasmall silicon-on-insulator-based arrayed waveguide grating for fiber Bragg grating sensor interrogation

Effect of polarization sensitivity on ultrasmall silicon-on-insulator-based arrayed waveguide grating for fiber Bragg grating sensor interrogation

Signal Demodulation of High-Temperature LPFG Strain Sensor Based on Arrayed Waveguide Grating

Investigation of Ultrasmall <inline-formula> <tex-math notation="LaTeX">$1\times N$</tex-math></inline-formula> AWG for SOI-Based AWG Demodulation Integration Microsystem

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