Ultrasensitive UV-tunable grating in all-solid photonic bandgap fibers
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.
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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
|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|
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