Ultrasensitive fiber optic sensors and their applications

Sung Hyun Nam, Jon Lee, Shizhuo Yin, Karl Reichard, Paul Ruffin, Qing Wang

Research output: Contribution to journalConference articlepeer-review


In this paper, a brief review on ultrasensitive fiber optic sensors and their applications, done recently at Penn State, is presented. Our discussions will mainly focus on two types of highly sensitive fiber optic sensors. One type is based on the combination of single resonant band long period gratings (LPGs) with the second refractive index matched polymer cladding layer. The other one is based on the LPGs fabricated in photonic nanostructured fibers and waveguides. It is found that a significantly increased sensitivity (two order plus) can be achieved by harnessing these approaches, which will benefit a variety of applications, in particular, low concentration chemical/biological agents detection.

Original languageEnglish (US)
Article number16
Pages (from-to)120-128
Number of pages9
JournalProgress in Biomedical Optics and Imaging - Proceedings of SPIE
StatePublished - 2005
EventOptical Fibers and Sensors for Medical Applications V - San Jose, CA, United States
Duration: Jan 22 2005Jan 25 2005

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Radiology Nuclear Medicine and imaging
  • Biomaterials


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