Referenced Items are not available for this document.
A simultaneous interrogation technique of a hybrid fiber Bragg grating (FBG) and long-period grating (LPG) sensor pair is proposed and demonstrated using a monolithically integrated echelle diffractive grating (EDG). The operation principle that is based on the monotonic temperature dependence of the EDG transmission wavelengths is presented. Initial results show that a 1-pm resolution and 24-nm interrogation range are achieved by using the proposed interrogation technique, which can effectively be implemented to interrogate hybrid FBG/LPG-based sensor pairs for the discrimination of refractive index (RI)/temperature in RI measurement. The specially designed EDG-based interrogator has the added features of low cost and compact size.
Published in:
Lightwave Technology, Journal of
(Volume:27
,
Issue:
12
)
Date of Publication: June15, 2009
- Page(s):
- 2100 - 2104
- ISSN :
- 0733-8724
- INSPEC Accession Number:
- 10757656
- Digital Object Identifier :
- 10.1109/JLT.2008.2007426
- Product Type:
- Journals & Magazines
- Date of Publication :
- 21 April 2009
- Date of Current Version :
- 19 June 2009
- Issue Date :
- June15, 2009
- Sponsored by :
- IEEE Aerospace and Electronic Systems Society
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