Abstract
The curvature- or bend-sensing response of long-period gratings (LPGs) UV inscribed in D-shaped fiber has been investigated experimentally. Strong fiber-orientation dependence of the spectral response when such LPGs are subjected to bending at different directions has been observed and is shown to form the basis for a new class of single-device sensor with vector-sensing capability. Potential applications utilizing the linear response and unique bend-orientation characteristics of the devices are discussed.
Original language | English |
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Pages (from-to) | 5425-5428 |
Number of pages | 4 |
Journal | Applied Optics |
Volume | 43 |
Issue number | 29 |
DOIs | |
Publication status | Published - 10 Oct 2004 |
Keywords
- curvature response
- bend-sensing response
- long-period gratings
- LPGs
- UV inscribed in D-shaped fiber
- fiber-orientation dependence
- spectral respons
- single-device sensor
- vector-sensing capability
- linear response
- unique bend-orientation