ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Optimizational 6-bit all-optical quantization with soliton self-frequency shift and pre-chirp spectral compression techniques based on photonic crystal fiber |
Li Sha (李莎)a, Wang Jian-Ping (王建萍)a, Kang Zhe (康哲)b, Yu Chong-Xiu (余重秀)b |
a School of Computer and Communication Engineering, University of Science and Technology Beijing (USTB), Beijing 100083, China;
b State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Postsand Telecommunications (BUPT), Beijing 100876, China |
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Abstract In this paper, we optimize a proposed all-optical quantization scheme based on soliton self-frequency shift (SSFS) and pre-chirp spectral compression techniques. A 10m-long high-nonlinear photonic crystal fiber (PCF) is used as an SSFS medium relevant to the power of the sampled optical pulses. Furthermore, a 10m-long dispersion flattened hybrid cladding hexagonal-octagonal PCF (6/8-PCF) is utilized as a spectral compression medium to further enhance the resolution. Simulation results show that 6-bit quantization resolution is still obtained when a 100m-long dispersion-increasing fiber (DIF) is replaced by a 6/8-PCF in spectral compression module.
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Received: 08 January 2015
Revised: 10 February 2015
Accepted manuscript online:
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PACS:
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42.65.Tg
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(Optical solitons; nonlinear guided waves)
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42.65.Re
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(Ultrafast processes; optical pulse generation and pulse compression)
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42.70.Mp
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(Nonlinear optical crystals)
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42.81.Dp
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(Propagation, scattering, and losses; solitons)
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Corresponding Authors:
Li Sha
E-mail: shalee@ustb.edu.cn
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Cite this article:
Li Sha (李莎), Wang Jian-Ping (王建萍), Kang Zhe (康哲), Yu Chong-Xiu (余重秀) Optimizational 6-bit all-optical quantization with soliton self-frequency shift and pre-chirp spectral compression techniques based on photonic crystal fiber 2015 Chin. Phys. B 24 084212
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