Share Email Print

Proceedings Paper

Earthquake monitoring using fiber laser borehole seismometer
Author(s): Wentao Zhang; Wenzhu Huang; Fang Li
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

In this paper we report the earthquake monitoring using a fiber laser borehole seismometer. A fiber laser based accelerometer is used in the seismometer to detect the earthquake induced acceleration. Due to the ultra-narrow line width of the fiber laser (up to several kHz), an equivalent noise level of 50 ng can be achieved when using a fiber optic interferometric method. The fiber laser borehole seismometer is installed in a 400 m depth hole in Yunnan Province. A micro-earthquake (M=1.2) in Puer area is detected.

Paper Details

Date Published: 7 November 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 8421B5 (7 November 2012); doi: 10.1117/12.974789
Show Author Affiliations
Wentao Zhang, Institute of Semiconductors (China)
Wenzhu Huang, Shijiazhuang Tiedao Univ. (China)
Institute of Semiconductors (China)
Fang Li, Institute of Semiconductors (China)

Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

© SPIE. Terms of Use
Back to Top