Temperature compensated, humidity insensitive, high-Tg TOPAS FBGs for accelerometers and microphones

Alessio Stefani (Invited author), W. Yuan (Invited author), C. Markos (Invited author), Henrik K. Rasmussen (Invited author), S. Andresen (Invited author), R. Guastavino (Invited author), F. K. Nielsen (Invited author), B. Rose (Invited author), O. Jespersen (Invited author), N. Herholdt-Rasmussen (Invited author), Ole Bang (Invited author)

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In this paper we present our latest work on Fiber Bragg Gratings (FBGs) in microstructured polymer optical fibers (mPOFs) and their application as strain sensing transducers in devices, such as accelerometers and microphones. We demonstrate how the cross-sensitivity of the FBG to temperature is eliminated by using dual-FBG technology and how mPOFs fabricated from different grades of TOPAS with glass transition temperatures around 135 degrees C potentially allow high-temperature humidity insensitive operation. The results bring the mPOF FBG closer to being a viable technology for commercial applications requiring high sensitivity due to the low Young's Modulus of polymer.
Original languageEnglish
JournalProceedings of SPIE, the International Society for Optical Engineering
Pages (from-to)84210Y
Number of pages10
Publication statusPublished - 2012
Event22nd International Conference on Optical Fiber Sensors (OFS 2012) - Beijing, China
Duration: 15 Oct 201219 Oct 2012
Conference number: 22


Conference22nd International Conference on Optical Fiber Sensors (OFS 2012)
Internet address


  • FBG
  • mPOF
  • High-Tg
  • Sensors
  • Accelerometer
  • Microphone

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