ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Generation of compact high-power high-efficiency normal-dispersion pumping supercontinuum in silica photonic crystal fiber pumped with 1064-nm picosecond pulse |
Chen Hong-Wei (谌鸿伟), Jin Ai-Jun (靳爱军), Yang Wei-Qiang (杨未强), Chen Sheng-Ping (陈胜平), Hou Jing (侯静), Lu Qi-Sheng (陆启生) |
College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha 410073, China |
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Abstract Broadband normal dispersion pumping supercontinuum (SC) generation in silica photonic crystal fiber (PCF) is investigated in this paper. A 1064-nm picosecond fiber laser is used to pump silica PCF for the SC generation. The length of PCF is optimized for the most efficient stimulated Raman scattering process in the picosecond pump pulse region. The first stimulated Raman Stokes peak is located in the anomalous dispersion regime of the PCF and nearby the zero dispersion wavelength; thus the SC generation process can benefit from both normal dispersion pumping scheme and anomalous dispersion pumping scheme. The 51.7-W SC spanning from about 700 nm to beyond 1700 nm is generated with an all-fiber configuration, and the pump-to-SC conversion efficiency is up to 90%. In order to avoid the output fiber end face damage and increase the stability of the system, an improved output solution for the high power SC is proposed in our experiment. This high-efficiency near-infrared SC source is very suitable for the applications that the average output power and spectral power density are firstly desirable.
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Received: 30 October 2012
Revised: 05 December 2012
Accepted manuscript online:
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PACS:
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42.55.Wd
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(Fiber lasers)
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42.65.-k
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(Nonlinear optics)
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42.65.Tg
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(Optical solitons; nonlinear guided waves)
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Fund: Project supported by the International Science and Technology Cooperation Program of the Ministry of Science and Technology of China (Grant No. 2012DFG11470), the State Key Program of the National Natural Science Foundation of China (Grant No. 61235008), the National Natural Science Foundation of China (Grant Nos. 10904173, 11004247, 11274385, 61077076, and 61007037), the Science Foundation for Distinguished Young Scholars of Hunan Province, China (Grant No. 12JJ1010), the Postgraduate Innovation Foundation of Hunan Province, China (Grant No. CX2011B034), and the Postgraduate Innovation Foundation of National University of Defense Technology, China (Grant No. B110704). |
Corresponding Authors:
Hou Jing
E-mail: houjing25@sina.com
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Cite this article:
Chen Hong-Wei (谌鸿伟), Jin Ai-Jun (靳爱军), Yang Wei-Qiang (杨未强), Chen Sheng-Ping (陈胜平), Hou Jing (侯静), Lu Qi-Sheng (陆启生) Generation of compact high-power high-efficiency normal-dispersion pumping supercontinuum in silica photonic crystal fiber pumped with 1064-nm picosecond pulse 2013 Chin. Phys. B 22 064211
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