A temperature sensor based on polarization non-reciprocity (PNR) in fiber-optic Sagnac interferometer (FSI) was proposed. The experimental study was made primarily and the results agree with theory well. Discussion shows that this kind of temperature sensor can achieve high precision and have great application potential.
© 2005 Chinese Optics Letters
Yuanhong Yang, "Temperature sensor based on PNR in Sagnac interferometer," Chin. Opt. Lett. 2, 259-261 (2004)