Fiber-optic seismometers for weak seismic signals registration

Oleg T. Kamenev; Yuriy N. Kulchin; Yuriy S. Petrov

doi:10.1117/12.2268285

14 December 2016 Fiber-optic seismometers for weak seismic signals registration

Oleg T. Kamenev, Yuriy N. Kulchin, Yuriy S. Petrov

Proceedings Volume 10176, Asia-Pacific Conference on Fundamental Problems of Opto- and Microelectronics; 101760W (2016) https://doi.org/10.1117/12.2268285
Event: Asia-Pacific Conference on Fundamental Problems of Opto- and Microelectronics, 2016, Khabarovsk, Russia

Abstract

The vertical and horizontal seismometers based on fiber-optic Mach-Zehnder interferometer are proposed and tested. The sensing element of seismometers is implemented as a multiturn optical fiber coil which allowed to obtain for vertical seismometer sensitivity to acceleration 10^–7 m/s² and for horizontal seismometer sensitivity to displacement 10^-9 m . Stability of the seismometer operation is provided by feed-back control of the interferometer working point. The possibility of registration of weak seismic signals are demonstrated.

Citation Download Citation

Oleg T. Kamenev, Yuriy N. Kulchin, and Yuriy S. Petrov "Fiber-optic seismometers for weak seismic signals registration", Proc. SPIE 10176, Asia-Pacific Conference on Fundamental Problems of Opto- and Microelectronics, 101760W (14 December 2016); https://doi.org/10.1117/12.2268285

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