Analysis of Polyimide-Coated Optical Fiber Long-Period Grating-Based Relative Humidity Sensor (2013)
Journal Article
Alwis, L., Sun, T., & Grattan, K. T. V. (2013). Analysis of Polyimide-Coated Optical Fiber Long-Period Grating-Based Relative Humidity Sensor. IEEE Sensors Journal, 13, 767-771. https://doi.org/10.1109/JSEN.2012.2227714

A long-period grating (LPG)-based relative humidity (RH) sensor is developed, based on using a tailored layered polyimide coating on the grating region at the distal end of the fiber probe and allowing it to respond to humidity changes. The attenuati... Read More about Analysis of Polyimide-Coated Optical Fiber Long-Period Grating-Based Relative Humidity Sensor.

Analysis of the Characteristics of PVA-Coated LPG-Based Sensors to Coating Thickness and Changes in the External Refractive Index. (2013)
Journal Article
Alwis, L., Bremer, K., Sun, T., & Grattan, K. T. V. (2013). Analysis of the Characteristics of PVA-Coated LPG-Based Sensors to Coating Thickness and Changes in the External Refractive Index. IEEE Sensors Journal, 13, 1117-1124. https://doi.org/10.1109/JSEN.2012.2230534

Recent research has shown that the transmission spectrum of a long period grating (LPG) written into an optical fiber is sensitive to the thickness and the refractive index (RI) of a thin layer deposited on it, a concept which forms the basis of a nu... Read More about Analysis of the Characteristics of PVA-Coated LPG-Based Sensors to Coating Thickness and Changes in the External Refractive Index..

Design and performance evaluation of polyvinyl alcohol/polyimide coated optical fibre grating-based humidity sensors (2013)
Journal Article
Alwis, L., Sun, T., & Grattan, K. T. V. (2013). Design and performance evaluation of polyvinyl alcohol/polyimide coated optical fibre grating-based humidity sensors. Review of Scientific Instruments, 84(2), 25002. https://doi.org/10.1063/1.4789768

Optical fibre grating based sensors make a significant contribution to relative humidity measurement for various applications and a number of different designs and sensor configurations have been produced and discussed in the literature. Recent devel... Read More about Design and performance evaluation of polyvinyl alcohol/polyimide coated optical fibre grating-based humidity sensors.