Abstract
This paper describes the development of a passively demodulated optical fiber sensor system capable of accommodating the high strain-rate events commonly encountered in applications involving stress wave propagation. This sensor system, which is based on in-line fiber etalon (ILFE) sensors and path-matched differential interferometry (PMDI), was tested experimentally at low frequency and strain-rates (time derivative of strain) up to (∼107 με/s). For the present system, this strain-rate corresponds to a sensor phase bandwidth of approximately 100 kHz. Characterization tests using sensor gauge lengths ranging from 260 to 350 μm showed that the sensor system had a minimum detectable phase of ∼2 microrad/√Hz rms at 2 kHz which corresponds to ∼0.8 nε/√Hz rms for 260 μm-gauge length sensor.
| Original language | English |
|---|---|
| Pages (from-to) | 1578-1586 |
| Number of pages | 9 |
| Journal | Journal of Lightwave Technology |
| Volume | 15 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 1997 Aug 1 |
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All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics
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Passive signal processing of in-line fiber etalon sensors for high strain-rate loading. / Lo, Yu-Lung; Sirkis, James S.; Chang, Chia Chen.
In: Journal of Lightwave Technology, Vol. 15, No. 8, 01.08.1997, p. 1578-1586.Research output: Contribution to journal › Article
TY - JOUR
T1 - Passive signal processing of in-line fiber etalon sensors for high strain-rate loading
AU - Lo, Yu-Lung
AU - Sirkis, James S.
AU - Chang, Chia Chen
PY - 1997/8/1
Y1 - 1997/8/1
N2 - This paper describes the development of a passively demodulated optical fiber sensor system capable of accommodating the high strain-rate events commonly encountered in applications involving stress wave propagation. This sensor system, which is based on in-line fiber etalon (ILFE) sensors and path-matched differential interferometry (PMDI), was tested experimentally at low frequency and strain-rates (time derivative of strain) up to (∼107 με/s). For the present system, this strain-rate corresponds to a sensor phase bandwidth of approximately 100 kHz. Characterization tests using sensor gauge lengths ranging from 260 to 350 μm showed that the sensor system had a minimum detectable phase of ∼2 microrad/√Hz rms at 2 kHz which corresponds to ∼0.8 nε/√Hz rms for 260 μm-gauge length sensor.
AB - This paper describes the development of a passively demodulated optical fiber sensor system capable of accommodating the high strain-rate events commonly encountered in applications involving stress wave propagation. This sensor system, which is based on in-line fiber etalon (ILFE) sensors and path-matched differential interferometry (PMDI), was tested experimentally at low frequency and strain-rates (time derivative of strain) up to (∼107 με/s). For the present system, this strain-rate corresponds to a sensor phase bandwidth of approximately 100 kHz. Characterization tests using sensor gauge lengths ranging from 260 to 350 μm showed that the sensor system had a minimum detectable phase of ∼2 microrad/√Hz rms at 2 kHz which corresponds to ∼0.8 nε/√Hz rms for 260 μm-gauge length sensor.
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U2 - 10.1109/50.618393
DO - 10.1109/50.618393
M3 - Article
VL - 15
SP - 1578
EP - 1586
JO - Journal of Lightwave Technology
JF - Journal of Lightwave Technology
SN - 0733-8724
IS - 8
ER -