| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Generation of Sub-2 Cycle Optical Pulses with a Differentially Pumped Hollow Fiber |
ZHANG Wei1,2, TENG Hao1, YUN Chen-Xia1, ZHONG Xin1, HOU Xun2, WEI Zhi-Yi1
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| 1Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 2The School of Electronic and Information Engineering, Xi'an Jiao Tong University, Xi'an 710049 |
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| Cite this article: |
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ZHANG Wei, TENG Hao, YUN Chen-Xia et al 2010 Chin. Phys. Lett. 27 054211 |
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Abstract We report the generation of optical pulses with an energy of 0.55 mJ and duration of 1.6-cycle (4.4 fs) at repetition rate of 1 kHz using a differentially pumped hollow fiber and chirped mirrors. Compared to the statically gas-filled scheme, the differentially pumping hollow fiber is demonstrated to support more energy output with higher transmission efficiency, and to increase the spectral broadening due to a reduction of ionization defocusing in plasma at the fiber entrance. The differentially pumping technique is proved to be an effective way to obtain optical pulses with mono-cycle and higher energy.
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| Keywords:
42.65.Re
42.65.Tg
78.47.J-
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Received: 31 December 2009
Published: 23 April 2010
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| PACS: |
42.65.Re
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(Ultrafast processes; optical pulse generation and pulse compression)
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42.65.Tg
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(Optical solitons; nonlinear guided waves)
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78.47.J-
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(Ultrafast spectroscopy (<1 psec))
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