Detection of seismic wave signal using singlemode-multimode-singlemode fiber probe
Penulis/Author
M. Yasin (1); Retna Apsari (2); Kristia Ningsih (3); Y.G.Y Yhuwana (4); M. Zulkarnaen (5); Mitra Djamal (6); Irwan Meilano (7); Maria Evita (8); Nina Siti Aminah (9); Wahyu Srigutomo (10); Dr. Ing. Ari Setiawan, M.Si. (11); Dr. rer. nat. Herlan Darmawan, M.Sc (12); Drs. Imam Suyanto, M.Si. (13); Dr. Wahyudi, M.S. (14); Dr.rer.nat. Wiwit Suryanto, S.Si., M.Si. (15); Heriansyah Putra (16); Irzaman (17); Perdinan (18); S. W. Harun (19)
Tanggal/Date
2022
Kata Kunci/Keyword
Abstrak/Abstract
A fiber-optic sensor based on singlemode-multimode-singlemode (SMS) fiber structure was proposed and demonstrated for
measuring both amplitude and frequency of seismic wave signal. This sensor system consisted of an amplified
spontaneous emission (ASE), SMS fiber probe and photodiode detector. A seismic wave generator was used as a
seismograph stimulator. The SMS fiber probe was attached onto a loudspeaker to gather an acoustic pressure which was
modulated by a seismograph signal from the audio generator. The proposed seismic wave sensor has the capability to
measure the seismograph signal operating within a frequency range from 2.0-2.6 Hz with a linearity of more than 98%. This
sensor is advantageous due to its simplicity of the design and low fabrication cost while exhibiting good sensitivity and
dynamic range. It is also suitable to be applied in real field to detect volcano eruption.
