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. © 2004 Optical Society of America.
| 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 |