Tilted fiber Bragg grating sensors
Citations
681 citations
555 citations
380 citations
Cites background from "Tilted fiber Bragg grating sensors"
...As detailed in [29,38,39], tilted FBGs present a refractive index modulation slightly angled with respect to the perpendicular to the optical fiber axis, which couples light in the core and in the cladding....
[...]
259 citations
225 citations
Cites background or methods from "Tilted fiber Bragg grating sensors"
...Typical tilt angles range between 4° and 16° [10]....
[...]
...For TFBGs, the Bragg condition given in equation (1) is slightly modified in order to take into account the resonance wavelength of each m-th cladding mode TFBG res ( ) m λ [10]:...
[...]
...According to Figure 2, the typical grating lengths of LPGs and FBGs (TFBGs and EFBGs) are 10–40 mm [4] and 10–20 mm [10], respectively, depending on the used manufacturing technique....
[...]
...This structure allows the coupling to circularly and non-circularly symmetric co-propagating or counter propagating cladding modes, with the direction of the coupled light depending on the tilted angle of the TFBG [10]....
[...]
References
[...]
33,785 citations
"Tilted fiber Bragg grating sensors" refers background in this paper
...Of particular interest are TFBGs with “excessive” tilt angles (45 degrees and larger, up to 80 degrees [43, 132]), a research area largely developed by the Photonics Research Group at Aston University in the UK: these gratings can also be used to couple to forward propagating cladding modes [90, 133], to detect refractive index changes [52,53,58,62], but they are mostly used for broadband polarization selection in fibers [110, 111, 117, 118, 121, 124, 134], and for coupling the light out of the fibers [23, 65, 66, 85, 86, 106, 112]....
[...]
3,698 citations
3,665 citations
2,905 citations