Bending characteristics of long period fiber grating fabricated upon all-solid photonic bandgap fiber by CO2 laser

Jiarong Zheng; Yongqin Yu; Zhilong Ou; Peiguang Yan; Jishun Wang; Xue Chen; Chenlin Du; Huifeng Wei

doi:10.1117/1.OE.52.6.065002

3 June 2013 Bending characteristics of long period fiber grating fabricated upon all-solid photonic bandgap fiber by CO2 laser

Jiarong Zheng, Yongqin Yu, Zhilong Ou, Peiguang Yan, Jishun Wang, Xue Chen, Chenlin Du, Huifeng Wei

Author Affiliations +

Optical Engineering, Vol. 52, Issue 6, 065002 (June 2013). https://doi.org/10.1117/1.OE.52.6.065002

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 pm/°C 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.

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Jiarong Zheng, Yongqin Yu, Zhilong Ou, Peiguang Yan, Jishun Wang, Xue Chen, Chenlin Du, and Huifeng Wei "Bending characteristics of long period fiber grating fabricated upon all-solid photonic bandgap fiber by CO2 laser," Optical Engineering 52(6), 065002 (3 June 2013). https://doi.org/10.1117/1.OE.52.6.065002

Published: 3 June 2013

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