Referenced Items are not available for this document.
A novel formation method of long-period fiber gratings (LPFGs) based on periodic microchannels, which are fabricated by femtosecond laser micromachining and selective chemical etching in conventional single-mode fibers, is proposed and experimentally demonstrated. This kind of grating may be as short as only 3 mm and exhibits low-temperature sensitivity of 9.95 pm/°C from 30 °C to 120°C. The strain sensitivities of the resonant wavelength and peak loss are -2.4 nm/mε and -3.5 dB/mε, respectively. High refractive-index (RI) sensitivity with one order of magnitude larger than that of the conventional LPFGs near RI=1.33 is achieved in general single-mode fibers.
Published in:
Photonics Technology Letters, IEEE
(Volume:25
,
Issue:
2
)
Date of Publication: Jan.15, 2013
- Page(s):
- 111 - 114
- ISSN :
- 1041-1135
- INSPEC Accession Number:
- 13218993
- Digital Object Identifier :
- 10.1109/LPT.2012.2227701
- Product Type:
- Journals & Magazines
- Date of Publication :
- 15 November 2012
- Date of Current Version :
- 08 January 2013
- Issue Date :
- Jan.15, 2013
- Sponsored by :
- IEEE Photonics Society
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