Lazaro, J. M., Kuhlmey, B. T., Knight, J. C., Lopez-Higuera, J. M. and Eggleton, B. J., 2009. Ultrasensitive UV-tunable grating in all-solid photonic bandgap fibers. Optics Communications, 282 (12), pp. 2358-2361.
We study the shift of a long period grating's resonance wavelength with UV induced refractive index changes in an all-solid photonic bandgap fiber. A long period grating is mechanically imprinted in an all-solid photonic bandgap fiber with Germanium doped silica high-index rods in a lower-index silica background. The index of the high-index rods is modified through UV exposure, and we observe that the long period grating's resonance shifts with the bandgaps. With a sensitivity of 21,000 nanometers per refractive index unit and a 8.8 nm resonance width changes of refractive index of 3 x 10(-6) are in principle detectable Crown Copyright
|Item Type ||Articles|
|Creators||Lazaro, J. M., Kuhlmey, B. T., Knight, J. C., Lopez-Higuera, J. M. and Eggleton, B. J.|
|Uncontrolled Keywords||refractive index sensing, optical fiber characterization, tunable filters, long period gratings, photonic crystal fibers|
|Departments||Faculty of Science > Physics|
|Publisher Statement||Knight_2009_OpticsComms_282_12_2358.pdf: NOTICE: this is the author’s version of a work that was accepted for publication in Optics Communications. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Optics Communications, vol 282, issue 12, 2009, DOI: 10.1016/j.optcom.2009.03.014|
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