Fabricating in fiber gratings in single crystal sapphire fiber

Sung Hyun Nam, Jesus Chavez, Shizhuo Yin

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


In this paper, we propose an innovative extremely harsh environment (up to 2000°C) distributed temperature sensor by fabricating in-fiber gratings in single crystal sapphire fibers. Temperature is sensed by changing grating optical spectral response. By cascading a set of gratings in the same single crystal sapphire fiber, distributed sensing can be achieved. A quantitative analysis on grating design, fabrication, and performance is presented. Some preliminary experimental results are also reported. Application of this unique in-fiber grating to extremely harsh environment temperature sensor will be performed in the near future.

Original languageEnglish (US)
Pages (from-to)58-65
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 2004
EventOptical Component and Materials - San Jose, CA, United States
Duration: Jan 26 2004Jan 27 2004

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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