Investigation of tilted long period fiber gratings in fiber tapers

Yang Li; Xiaobei Zhang; Fan Gu; Fufei Pang; Yunqi Liu; Tingyun Wang

doi:10.1117/12.2031387

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15 October 2013 Investigation of tilted long period fiber gratings in fiber tapers

Yang Li, Xiaobei Zhang, Fan Gu, Fufei Pang, Yunqi Liu, Tingyun Wang

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Proceedings Volume 8924, Fourth Asia Pacific Optical Sensors Conference; 89242N (2013) https://doi.org/10.1117/12.2031387
Event: Asia Pacific Optical Sensors Conference 2013, 2013, Wuhan, China

Abstract

This paper investigates the transmission spectral properties of tilted long period fiber gratings (TLPFGs) written in fiber tapers with different radiuses. We found that the tilted angle, the radius of fiber and the external refractive index both have influences on the transmission spectral by simulations. With the decrease of the radius of the fiber taper and the increase of refractive index, the resonant wavelength of the tilted LPFG was found to shift towards shorter wavelength. Experimental results show the agreement with the simulation predictions. The TLPFG inscribed in fiber taper also brings the high sensitivity of external refractive index as 566.7 nm/RIU.

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Yang Li, Xiaobei Zhang, Fan Gu, Fufei Pang, Yunqi Liu, and Tingyun Wang "Investigation of tilted long period fiber gratings in fiber tapers", Proc. SPIE 8924, Fourth Asia Pacific Optical Sensors Conference, 89242N (15 October 2013); https://doi.org/10.1117/12.2031387

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