A novel microstructured fiber optic sensor for small deformations

2008 International Conference on Innovations in Information Technology

2008

Self Cite

This paper will introduce and evaluate a novel sensor based on embedding a triangular-lattice photonic crystal into the core of an optical fiber. We will start by mentioning previous results reported recently for a similar sensor which used a rectangularlattice photonic crystal. We will argue that such sensors (i.e., which embedded photonic crystals into the core of standard monomode optical fibers) are highly sensitive, and will show that the novel sensor (which relies on a triangular-lattice photonic crystal) achieves an accuracy of about 10 pico-meters, this being 22% better than that of the sensor which uses a rectangular-lattice photonic crystal. Possible fabrication alternatives will also be mention. While these sensors have been analyzed only with respect to mechanical deformations, they could easily be used for a much wide range of measurements. This aspect, together with the ultra-small size (micro-meters) of such sensors makes them attractive candidates for future (lab-)on-chip applications.

Section: Discussionmentioning

confidence: 83%

Section: Simulations Resultsmentioning

confidence: 97%

“…The basic idea of the sensor is to embed a PC structure transversally within the core of a mono-mode FO (and was presented in [10][11][12]). Fig.…”

Section: A Fo Mechanical Sensor Embedding a Triangular-lattice Pc Strmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Pico Sensors for All Seasons — When Light Performs Its Marvels

2008 International Conference on Innovations in Information Technology

2008

Self Cite

“…In several recent papers [10][11][12] we have investigated and reported on embedding a rectangular-lattice PC structure into the core of standard monomode FOs. We have shown that such sensors allow for highly sensitive detection of mechanical deformations using the classical sensing principle (illustrated in Fig.…”

Section: Introductionmentioning

confidence: 99%

Fiber Optic Mechanical Sensor Based on a Triangular-lattice Photonic Crystal

2008 IEEE PhotonicsGlobal@Singapore

2008

Self Cite

This paper will start by mentioning very briefly previous results reported recently for mechanical sensors based on embedding a rectangular-lattice photonic crystal into the core of a standard monomode optical fiber. The next step will be to introduce and evaluate another mechanical sensor based on embedding a triangular-lattice photonic crystal into the core of the optical fiber. We will argue that such sensors (i.e., which embed photonic crystals into the core of optical fibers), are highly sensitive to mechanical deformations. Finally, we will estimate the sensitivity of the mechanical sensor which relies on a triangular-lattice photonic crystal, and compare it with that of a mechanical sensor which uses a rectangular-lattice photonic crystal. The main conclusion is that the triangular-based sensor is 22% more sensitive (than the rectangular-based one), while future directions of research will end the paper.

Fiber optic mechanical deformation sensors employing perpendicular photonic crystals

Duma

2017

Opt. Express

Existing fiber optics (FOs)-based sensors, including mechanical deformation ones rely on structures embedded along the length of the FO. In this paper, we introduce and evaluate photonic crystals (PCs) embedded into FO cores acting as mechanical deformation sensors which are departing from this classical approach as the PCs are perpendicular to the length of the FO. Another noteworthy difference from classical FO-PC based sensors is that while classical ones rely on amplitude variations, the ones presented here use the phase variations of the electromagnetic components for assessing mechanical deformations. We start with a straightforward rectangular-lattice PC while also exploring a triangular-lattice PC. Light transmission simulations through the proposed FO-PC mechanical deformation sensors were performed using EM Explorer, and revealed their behaviors under small mechanical deformations. These simulations (of the rectangular-lattice and triangular-lattice PCs) show that these two FO-PC mechanical deformation sensors have roughly the same sensitivities while the triangular-lattice PC triggers at a lower threshold than the rectangular-lattice PC.