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Suppression of signal fluctuation in Brillouin optical correlation domain analysis system using polarization diversity scheme
- Authors
- Hotate, Kazuo; Abe, Koji; Song, Kwang Yong
- Issue Date
- Nov-2006
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Brillouin scattering; correlation; modulation; nonlinear optics; optical fiber measurements; polarization; strain measurement
- Citation
- IEEE PHOTONICS TECHNOLOGY LETTERS, v.18, no.21-24, pp 2653 - 2655
- Pages
- 3
- Journal Title
- IEEE PHOTONICS TECHNOLOGY LETTERS
- Volume
- 18
- Number
- 21-24
- Start Page
- 2653
- End Page
- 2655
- ISSN
- 1041-1135
1941-0174
- Abstract
- We demonstrate the suppression of polarization-dependent gain fluctuation in a Brillouin correlation domain analysis system based on a polarization diversity scheme. Probe waves with two orthogonal polarization states are alternatively propagated and the Brillouin gain is calculated using their root sum square so as to compensate for the effect of the polarization state change of pump and probe waves. The improvement is confirmed by a successful measurement of strain distribution along a 100-m optical fiber with large local birefringence.
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