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Journals and Conferences
In this paper we report on the development of a complete integrated optical fiber assembly suitable for shape sensing. Our shape sensor module consists of a length (>1m) of twisted multicore optical fiber with fiber Bragg gratings inscribed along its length. Our fiber has a compact 180 micron coated diameter, a twist of 50 turns per meter and grating… (More)
Spatially and spectrally resolved mode imaging of a 19 cell photonic bandgap fiber with minimum loss at 1550 nm is demonstrated using a high resolution tunable laser and phosphor-coated CCD camera.
We describe the fabrication and distributed sensing capabilities of very long continuous fiber grating sensor arrays in a twisted multicore fiber. The continuous gratings are fabricated in fibers with UV transparent coating using a flexible and scalable reel-to-reel processing system. Single-frequency continuous gratings are characterized using optical… (More)
We describe the fabrication and performance of a continuously grated twisted multicore fiber sensor array. The grated fiber sensor comprises nearly continuous Bragg gratings along its entire length. The gratings are inscribed over lengths in excess of 10m in fibers with UV transparent coating using a flexible and scalable reel to reel processing system. The… (More)
We demonstrate the first measured dual-hollow-core photonic bandgap silica fiber. We examine its bend-induced coupling characteristics both theoretically and experimentally. Varying the bend diameter of the fiber allows control of the resonant coupling wavelength.
We demonstrate the sensing capability of a twisted multicore optical fiber with continuous grating enhanced back scatter. Our fiber allows spatially continuous temperature measurement in a sensor with more than 20dB round trip transmission loss.