| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Broadening and Amplification of an Infrared Femtosecond Pulse for Optical Parametric Chirped-Pulse Amplification |
| WANG He-Lin1, YANG Ai-Jun1**, LENG Yu-Xin2
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1College of Science, Zhejiang University of Technology, Hangzhou 310023
2State 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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WANG He-Lin, YANG Ai-Jun, LENG Yu-Xin 2011 Chin. Phys. Lett. 28 104206 |
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Abstract A high-average-power diode-pumped narrowband regenerative chirped pulse amplifier is developed using the thin-rod Nd:YAG laser architecture for optical parametric chirped-pulse amplification (OPCPA). The effect of the etalons on the amplified pulse in the regenerative cavity is studied experimentally and theoretically. By inserting glass etalons of thickness 1 mm and 5 mm into the regenerative cavity, the pre-stretching pulse from an Öffner stretcher is further broadened to above 200 ps, which matches the amplification windows of the signal pulses in OPCPA and is suitable for use as a pump source in the OPCPA system. The bandwidth of the amplified pulse is 1.5 nm, and an output energy of 2 mJ is achieved at a repetition rate of 10 Hz.
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| Keywords:
42.65.Yj
42.60.By
42.65.Re
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Received: 01 April 2011
Published: 28 September 2011
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| PACS: |
42.65.Yj
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(Optical parametric oscillators and amplifiers)
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42.60.By
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(Design of specific laser systems)
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42.65.Re
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(Ultrafast processes; optical pulse generation and pulse compression)
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