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| Titel: |
Finite Element Analysis of Piezoelectric Polymer-Coated D-Fiber Intended for Electric Field Sensing |
| Auteur: |
Bhatti, A. Al-Raweshidy, H. S. Murtaza, G. |
| Verschenen in: |
Fiber & integrated optics |
| Paginering: | Jaargang 19 (2000) nr. 1 pagina's 79-85 |
| Jaar: |
2000-01-01 |
| Inhoud: |
We report, for the first time, the advantage of using a polymer-coated D-fiber over conventional circular fiber as the sensing element in an all-fiber electric field sensor. Finite element analysis has been used to studythe strains in a D-fiber subjected to an external electric field. The optical D-fiber carrying a transversely poled piezoelectric poly(vinylidene fluoride) polymer coating was modeled by using three-dimensional stress analysis. The response of the D-fiber electric field sensor was determined over a wide frequency range from 100 Hz to 50 MHz. The modeling predicts that the resulting strains will cause a phase shift of 0.06 rad V m in the low-frequency (axially unconstrained) region and 0.002 rad V m in the high-frequency (axially constrained)region. An increase in the phase modulation sensitivity by a factor of 3 compared to conventional circular fiber has been achieved by utilizing the unique properties of the D-fiber structure. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 5 van 10 gevonden artikelen
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