Optical Fibre Sensors Based on UV Inscribed Excessively Tilted Fibre Grating

Mou, Chengbo; Yan, Zhijun; Zhou, Kaiming; Zhang, Lin

doi:10.5772/57146

Cited by 2 publications

(2 citation statements)

References 25 publications

(30 reference statements)

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“…In addition to TFBGs, there were also several papers which have given theoretical modeling about the transmission spectra of tilted gratings with long period pattern [21,22]. Recently, Mou et al have published a review chapter about sensing applications using Ex-TFGs [23], and we have reported a high Q factor and sensitivity glucose sensor by using an Ex-TFG [24]. Although abundant experimental works on Ex-TFGs reported, there is no report giving a detailed theoretical and experimental analysis about the dual polarization dependent peaks of Ex-TFGs.…”

Section: Introductionmentioning

confidence: 99%

Theoretical and experimental analysis of excessively tilted fiber gratings

Yan¹,

Wang²,

Wang³

et al. 2016

Opt. Express

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We have theoretically and experimentally investigated the dual-peak feature of tilted fiber gratings with excessively tilted structure (named as Ex-TFGs). We have explained the dual-peak feature by solving eigenvalue equations for TM_0m and TE_0m of a circular waveguide, in which the TE (transverse electric) and TM (transverse magnetic) core modes are coupled into TE and TM cladding modes, respectively. Meanwhile, in the experiment, we have verified that one of the dual peaks at the shorter wavelength is due to the TM mode coupling whereas the other one at the longer wavelength arises from TE mode coupling when a linearly polarized light launched into the Ex-TFG. We have also investigated the peak separation of TE and TM cladding mode for different surrounding medium refractive indexes (SRI), revealed that the dual peaks separation is decreasing as increasing of SRI, which agrees very well with the theoretical analysis results.

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Section: Introductionmentioning

confidence: 99%

Theoretical and experimental analysis of excessively tilted fiber gratings

Yan¹,

Wang²,

Wang³

et al. 2016

Opt. Express

Self Cite

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“…Such Ex-TFG shows a series of orthogonal polarization dual-peaks in the transmission spectrum and exhibits high SRI sensitivity with low temperature crosstalk [26]. In 2014, Mou et al [27] have published a book chapter about sensing properties of Ex-TFGs, which only includes some basic physical applications. In this paper, we will present a comprehensive review on the more recent study and development of theory, fabrication, characteristics and applications of Ex-TFGs, which would provide more insights to the Ex-TFGs and promote a more wide range of applications in utilizing such unique optical fiber grating devices.…”

Section: Introductionmentioning

confidence: 99%

Excessively Tilted Fiber Grating Sensors

Sun

Yan

Zhou

et al. 2021

J. Lightwave Technol.

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The development of excessively tilted fiber gratings (Ex-TFGs) provides a new type of sensing device with high refractive index (RI) sensitivity, low thermal crosstalk and vector sensing property. Due to the asymmetric grating structure of Ex-TFG, the light in the core is coupled into high order forwardpropagating cladding modes and split into two orthogonal polarization states, resulting in dual-peak resonances in the transmission spectrum. The Ex-TFG also exhibits a non-circularly symmetrical near field distribution, which endows an exceptional orientation sensing capability. Benefitting from the unique mode coupling behavior, Ex-TFGs have been studied and developed for many different sensing applications, such as polarization dependent torsion and loading sensors, vector accelerometer and magnetometer, and a variety of low thermal crosstalk bio/chemical sensors.This paper will review the recent study and development of Ex-TFGs in terms of mode coupling mechanism, fabrication method, transmission and sensor characteristics and the novel applications in sensing areas.

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Optical Fibre Sensors Based on UV Inscribed Excessively Tilted Fibre Grating

Cited by 2 publications

References 25 publications

Theoretical and experimental analysis of excessively tilted fiber gratings

Theoretical and experimental analysis of excessively tilted fiber gratings

Excessively Tilted Fiber Grating Sensors

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