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High-Conversion-Efficiency and Broadband Tunable Femtosecond Noncollinear Optical Parametric Amplifier |
| WEI Peng-Fei, LI Chuang, ZHANG Chun-Mei, WANG Jian-Liang, LENG Yu-Xin, LI Ru-Xin |
| State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 |
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| Cite this article: |
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WEI Peng-Fei, LI Chuang, ZHANG Chun-Mei et al 2008 Chin. Phys. Lett. 25 2514-2517 |
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Abstract We build a compact high-conversion-efficiency and broadband tunable noncollinear optical parametric amplifier (OPA) in the infra-red (IR) pumped by a femtosecond Ti:sapphire CPA laser. The OPA consists of an internal seed of white-light continuum generator (WLG) and two noncollinear optical parametric amplifiers. The tunable wavelength range is from 1.2μm to 2.4μm for both signal and idle pulses. The total OPA efficiency in the last OPA stage reaches about 40% in a wider tunable spectral range (from 1.3μm to 1.7μm for signal pulse, from 1.5μm to 2.0μm for idle pulse respectively).
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| Keywords:
42.65.Yj
42.65.Re
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Received: 27 March 2008
Published: 26 June 2008
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| PACS: |
42.65.Yj
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(Optical parametric oscillators and amplifiers)
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42.65.Re
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(Ultrafast processes; optical pulse generation and pulse compression)
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