In-fibre twist sensor based on a fibre Bragg grating with 81º tilted structure
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We report a strong polarization dependent coupling behavior of fiber Bragg gratings with excessively tilted structures up to 81deg. This unique property has been utilized to implement a novel twist sensor, showing high torsion sensitivity. The twist induced light coupling interchange between the two birefringence modes makes it possible to interrogate such a sensor using low-cost intensity demodulation technique.
| Original language | English |
|---|---|
| Pages (from-to) | 2596-2598 |
| Journal | IEEE Photonics Technology Letters |
| Volume | 18 |
| Issue number | 24 |
| DOIs | |
| Publication status | Published - 30 Nov 2006 |