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Optical Engineering

Bending characteristics of long period fiber grating fabricated upon all-solid photonic bandgap fiber by CO2 laser
Author(s): Jiarong Zheng; Yongqin Yu; Zhilong Ou; Peiguang Yan; Jishun Wang; Xue Chen; Chenlin Du; Huifeng Wei
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Paper Abstract

Long period fiber grating (LPFG) upon all-solid photonic bandgap fiber with a bandgap at 1.068 to 1.180 μm is fabricated by high-frequency CO 2 laser pulse irradiation. The resonance wavelength is 1335.76 nm with a modulation depth of 15 dB and a 3-dB bandwidth of 2.6 nm. Bending response of the LPFG is dependent on the axial orientations and the input polarization states. The maximum bending sensitivity is achieved at 52  nm/m . The temperature response is weakly dependent on the polarization state, and is achieved around 20.47  pmC at a 0-deg polarization azimuth. The bending measurement error resulting from temperature can be negligible within the range of 0.4 to 0.82  m −1 . It is be beneficial to avoiding cross-sensitivity of temperature in bending measurements.

Paper Details

Date Published: 3 June 2013
PDF: 7 pages
Opt. Eng. 52(6) 065002 doi: 10.1117/1.OE.52.6.065002
Published in: Optical Engineering Volume 52, Issue 6
Show Author Affiliations
Jiarong Zheng, Shenzhen Univ. (China)
Yongqin Yu, Shenzhen Univ. (China)
Zhilong Ou, Shenzhen Univ. (China)
Peiguang Yan, Shenzhen Univ. (China)
Jishun Wang, Shenzhen Univ. (China)
Xue Chen, Shenzhen Univ. (China)
Chenlin Du, Shenzhen Univ. (China)
Huifeng Wei, Yangtze Optical Fibre and Cable Co., Ltd. (China)

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