Demonstration of a passive sub-picostrain fiber strain sensor
Optics
2009-11-11 v1 Instrumentation and Detectors
Abstract
We demonstrate a fiber Fabry-Perot (FFP) sensor capable of detecting sub-picostrain signals, from 100 Hz and extending beyond 100 kHz, using the Pound-Drever-Hall frequency locking technique. A low power diode laser at 1550 nm is locked to a free-space reference cavity to suppress its free-running frequency noise, thereby stabilizing the laser. The stabilized laser is then used to interrogate a FFP where the PDH error signal yields the instantaneous fiber strain.
Keywords
Cite
@article{arxiv.physics/0504069,
title = {Demonstration of a passive sub-picostrain fiber strain sensor},
author = {Jong H. Chow and Ian C. M. Littler and David E. McClelland and Malcolm B. Gray},
journal= {arXiv preprint arXiv:physics/0504069},
year = {2009}
}
Comments
3 pages, 4 figure, to appear in Optics Letters