It is reported a LPG dynamic interrogation technique based on the modulation of fibre Bragg gratings located in the
readout unit that permits to attenuate the effect of the 1/f noise of the electronics in the resolution of the LPG-based
sensing head. The concept is tested to detect variations of the external refractive index and a resolution of 2.0×10-4 NIR
was achieved without system optimization. Additionally, the effect in the sensor resolution when introducing Erbium and
Raman optical amplification is experimentally investigated.
We report on the integration of optical fiber containing Bragg gratings in the structure of both optical and power cables. It is hon that fiber Bragg gratings provide an efficient method to monitor quasi-distributed mechanical strength along optical cables. This technology is also applied to the monitoring of temperature in power cables for transmission/distribution infrastructures. We show that there are no losses introduced during the cabling process, and the temperature sensitivity of the fiber Bragg grating was found to be only slightly affected by the extrusion process. Results are presented for cable operation in real environment.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.