Ultra broadband-flattened dispersion photonic crystal fiber for supercontinuum generation
Chinese Optics Letters, Vol. 8, Issue 11, pp. 1028-1031 (2010)
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Abstract
We propose an improved design of photonic crystal fiber (PCF) with ultra broadband-flattened dispersion and ultra-low confinement loss in the telecommunication window. The design is considerably suitable for the generation of wideband supercontinuum spectrum. Numerical results reveal that the proposed PCF structure possesses a low dispersion of 0+-1.5 ps/(nm.km) in the wavelengths ranging from 1.134 to 1.805 \mum (approximately 700-nm bandwidth) with a confinement loss of less than 10?8 dB/km. In addition, a nonlinear coefficient greater than 11.47 (W.km)?1 and a dispersion slope of as low as 0.005694 ps/(nm2.km) are obtained at 1.55-?m wavelength. Moreover, a symmetric flat supercontinuum spectrum with a 10-dB bandwidth of 190 nm is achieved in a 3-m-long fiber, verifying the excellent optical features of the innovative PCF.
© 2010 Chinese Optics Letters
OCIS Codes
(060.2280) Fiber optics and optical communications : Fiber design and fabrication
(060.2400) Fiber optics and optical communications : Fiber properties
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
Citation
Liang Fang, Jianlin Zhao, and Xuetao Gan, "Ultra broadband-flattened dispersion photonic crystal fiber for supercontinuum generation," Chin. Opt. Lett. 8, 1028-1031 (2010)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-8-11-1028
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