Tilted Fiber Bragg Grating Refractometer Using Polarization-Dependent Loss Measurement

Caucheteur, Christophe; Bette, Sébastien; Chen, C.; Wuilpart, Marc; Mégret, Patrice; Albert, Jacques

doi:10.1109/lpt.2008.2007745

Cited by 44 publications

(20 citation statements)

References 6 publications

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“…Another technique tracks the wavelength shift and amplitude variation of individual cladding mode resonances as they reach the cut-off [6], therefore presenting the maximum sensitivity to the SRI. The use of the polarization dependent loss (PDL) associated to the transmitted spectrum of TFBG has also been reported as a demodulation technique for TFBG refractometers [18]. The use of an optical time domain reflectometer (OTDR) has been proposed as well to interrogate a cascade of identical TFBGs that can be selectively resolved in the time domain by measuring their insertion loss on the OTDR trace [19].…”

Section: Bare Tfbgsmentioning

confidence: 99%

Light Polarization-Assisted Sensing with Tilted Fiber Bragg Gratings

Caucheteur¹

2013

TOOPTSJ

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Tilted fiber Bragg gratings (TFBGs) are short-period gratings for which the refractive index modulation of the fiber core is angled by a few degrees with respect to the perpendicular to the propagation axis. They induce two kinds of light coupling: the self-backward coupling of the core mode at the Bragg wavelength and the backward coupling between the core mode and several tens of cladding modes, each with its own effective refractive index and mode field shape. The information contained in their spectral content is such that they inherently provide novel sensing modalities and improve the sensitivity in comparison to uniform fiber Bragg gratings. In particular, TFBGs are intrinsically temperatureinsensitive by referencing spectral measurements to the wavelength and power level of the core mode resonance. As the tilt angle breaks the circular symmetry of the optical fiber cross-section, TFBGs are strongly dependent on light polarization effects, which can be advantageously used when they are coated with nanoscale metal coatings or thin films. In this review, we report the latest achievements obtained with bare and coated TFBGs used for high-resolution refractometry and biochemical sensing through surface Plasmon wave generation.

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Section: Bare Tfbgsmentioning

confidence: 99%

Light Polarization-Assisted Sensing with Tilted Fiber Bragg Gratings

Caucheteur¹

2013

TOOPTSJ

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“…Major applications of TFBGs in optical fiber communications include gain flattening filters for erbium-doped fiber amplifiers (EDFAs) [21][22][23], filters & wavelength division multiplexing (WDM) channel monitor [24][25][26][27][28][29][30], and polarization independent components [11,[31][32][33][34][35], etc. Considering the topic of this review, our discussion is limited to sensing applications of TFBGs in the following part.…”

Section: Sensing Applications Of Tfbg Researchmentioning

confidence: 99%

Tilted fiber Bragg gratings: Principle and sensing applications

et al. 2010

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In this paper, the mode coupling mechanism of tilted fiber Bragg gratings (TFBGs) is briefly introduced at first. And a general review on the fabrication, theoretical and experimental research development of TFBGs is presented from a worldwide perspective, followed by an introduction of our current research work on TFBGs at the Institute of Modern Optics, Nankai University (IMONK), including TFBG sensors for single-parameter measurements, temperature cross sensitivity of TFBG sensors, and TFBG-based interrogation technique. Finally, we would make a summary of the related key techniques and a remark on prospects of the research and applications of TFBGs.

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“…That is useful in order to optimize the interaction between the fundamental guided mode and backward-propagating highorder modes, has attracted considerable interest in research area [17][18][19][20][21][22]. Most of the applications have focused on TFBG in the single mode fiber and the six-hollow microstructure optical fiber (MOF) [23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Bend response of weakly tilted Bragg grating inscribed in all-solid photonic band-gap fibers

et al. 2012

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Weakly tilted fiber Bragg gratings (W-TFBGs) with a certain tilted angle are inscribed in the Ge-doped cladding rods of all-solid photonic band-gap fibers (AS-PBGF) by UV illumination. There are couplings not only forward-propagating LP 01 mode to counter-propagating LP 01 mode but also the couplings to counter-propagating high order supermodes based on tilted refractive index modulation. The responses of the W-TFBGs to temperature and bend are investigated. The results indicate that the resonance peaks will shift red-side with increasing temperatures, and the sensitivities of different resonance peaks are very close in the same grating. When the bend is applied, the grids of W-TFBG will be compressed or stretched. Two resonance peaks will shift with increasing curvatures, which is related to the orientation of curvature. Therefore, it is potential to work as a directional bend sensor. For the fiber grating with high-order supermodes coupling, it could form fiber grating array by different levels. If every grating has individual response to surrounding, such a single W-TFBG could be used for one point and multi-parameter measurement. In addition, this work provides some insights into the mechanisms that contribute to the measured properties of TFBG in the photonic crystal fiber. It is also an effective method to investigate supermode properties of photonic crystal fiber.

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Tilted Fiber Bragg Grating Refractometer Using Polarization-Dependent Loss Measurement

Cited by 44 publications

References 6 publications

Light Polarization-Assisted Sensing with Tilted Fiber Bragg Gratings

Light Polarization-Assisted Sensing with Tilted Fiber Bragg Gratings

Tilted fiber Bragg gratings: Principle and sensing applications

Bend response of weakly tilted Bragg grating inscribed in all-solid photonic band-gap fibers

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