Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/4238
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Title: Asymmetric long period fiber gratings fabricated by use of CO₂laser to carve periodic grooves on the optical fiber
Authors: Wang, Y
Wang, DN 
Jin, W 
Rao, YJ
Peng, GD
Issue Date: 9-Oct-2006
Source: Applied physics letters, 9 Oct. 2006, v. 89, no. 15, 151105, p. 1-3
Abstract: An asymmetric long period fiber grating (LPFG) with a large attenuation of −47.39 dB and a low insertion loss of 0.34 dB is fabricated by use of focused CO₂laser beam to carve periodic grooves on one side of the optical fiber. Such periodic grooves and the stretch-induced periodic microbends can effectively enhance the refractive index modulation and increase the average strain sensitivity of the resonant wavelength of the LPFG to −102.89 nm/mε. The resonant wavelength and the peak attenuation of the LPFG can be tuned by ∼ 12 nm and ∼ 20 dB, respectively, by the application of a stretching force.
Keywords: Optical fibre fabrication
Diffraction gratings
Carbon compounds
Laser materials processing
Optical fibre losses
Refractive index
Publisher: American Institute of Physics
Journal: Applied physics letters 
ISSN: 0003-6951
EISSN: 1077-3118
DOI: 10.1063/1.2360253
Rights: © 2006 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Yi-Ping Wang et al., Appl. Phys. Lett. 89, 151105 (2006) and may be found at http://apl.aip.org/resource/1/applab/v89/i15/p151105_s1
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