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Broadband tunable optical amplification based on modulation instability characteristic of high-birefringence photonic crystal fibers |
Wang He-Lin (王河林)a, Yang Ai-Jun (杨爱军)a, Leng Yu-Xin (冷雨欣)b |
a College of Science, Zhejiang University of Technology, Hangzhou 310023, China; b State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China |
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Abstract A novel high-birefringence photonic crystal fiber (HB-PCF) with two zero-dispersion wavelengths (ZDWs) is designed, and an extraordinarily high modal birefringence of 1.56×10-2 is obtained at pump wavelength λp=1850 nm. With the designed HB-PCF, the effect of the pump parameters on the modulation instability (MI) in the anomalous dispersion region close to the second ZDWs of the HB-PCF is comprehensively studied in this work. A broadband and tunable optical amplification is achieved by controlling the pump power and the pump wavelength based on the combined operation of Raman effect and cross phase modulation. By optimizing the pump parameters, the amplification bandwidth along the fiber slow axis reaches 152 nm for the pump power Pp=280 W and the pump wavelength λp=1675 nm, while the gain bandwidth along the fiber fast axis is 165 nm for the pump power Pp=600 W and the pump wavelength λp=1818 nm.
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Received: 17 October 2012
Revised: 08 January 2013
Accepted manuscript online:
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PACS:
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42.65.Sf
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(Dynamics of nonlinear optical systems; optical instabilities, optical chaos and complexity, and optical spatio-temporal dynamics)
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42.65.Wi
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(Nonlinear waveguides)
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Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11226148), the Scientific Research Foundation of Zhejiang Province, China (Grant No. LY12F05006), and the Education Department Foundation of Zhejiang Province, China (Grant No. Y201121906). |
Corresponding Authors:
Wang He-Lin
E-mail: whl982032@163.com
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Cite this article:
Wang He-Lin (王河林), Yang Ai-Jun (杨爱军), Leng Yu-Xin (冷雨欣) Broadband tunable optical amplification based on modulation instability characteristic of high-birefringence photonic crystal fibers 2013 Chin. Phys. B 22 074208
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