RT info:eu-repo/semantics/article
T1 Compound lasing fiber optic ring resonators for sensing
A1 Rota Rodrigo, Sergio
A1 González Herráez, Miguel
A1 López Amo, M.
K1 Fiber laser sensor
K1 Laser ring resonator
K1 Optical fiber sensor
K1 Electrónica
K1 Electronics
AB In this work, we present a new method for increasing simultaneously the sensitivity and interrogation stability of fiberoptic intensity sensors. The configuration is based on a double-coupler ring resonator. On one side, the attenuation sensitivity of the sensor is enhanced by placing it inside a ring resonator. On the other side, the stability of the interrogation method is rendered close to perfect by creating an external lasing ring resonator with matched spectral response. The resulting lasers allow the stable interrogation of the sensors with an impressive sensitivity enhancement. In our experiments, the dynamic range of the intensity sensor (and consequently its sensitivity) is increased 15 dB by using this laser-based interrogation system. Simultaneously, the instability of the system is reduced to ±0.05 dB. In comparison with systems based on external interrogation, our method is <100 times more stable and also simpler, as no wavelength tunable elements are required.
PB SPIE
SN 978-1-62841175-1
SN 0277-786X
YR 2014
FD 2014-06-02
LK http://hdl.handle.net/10017/39527
UL http://hdl.handle.net/10017/39527
LA eng
NO Ministerio de Ciencia e Innovación
DS MINDS@UW
RD 27-abr-2024