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Compact Single-Stage Femtosecond Multipass Ti:Sapphire Amplifier at 1kHz with High Beam Quality |
| ZHAO Wei;WANG Yi-Shan;CHENG Zhao;ZHU Shao-Lan;LIU Hong-Jun;LING Wei-Jun;CHEN Guo-Fu |
| State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710068 |
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| Cite this article: |
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ZHAO Wei, WANG Yi-Shan, CHENG Zhao et al 2006 Chin. Phys. Lett. 23 2098-2100 |
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Abstract A compact femtosecond Ti:sapphire amplifier system is reported using single-stage multipass configuration with high beam quality. A high dispersion glass stretcher and a pair of double prisms for compression are introduced based on broadband femtosecond seed pulses. The non-grating-based pulse stretcher and compressor are advantageous to increase high beam quality and to reduce the high-order dispersion. A Gaussian filter is used to reduce the gain narrowing effect in amplification. The compact femtosecond Ti:sapphire nine-pass amplifier delivers pulses with a duration of 26fs and an energy of 800μJ at 7mJ pumping pulses energy at 1kHz. The 1-kHz femtosecond amplifier with high beam quality and high stability is very suitable for ultrafast physics research applications, such as attosecond science, ultra-precision micromachining, and THz wave generation.
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| Keywords:
42.60.Da
42.60.Lh
42.65.Re
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Published: 01 August 2006
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| PACS: |
42.60.Da
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(Resonators, cavities, amplifiers, arrays, and rings)
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42.60.Lh
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(Efficiency, stability, gain, and other operational parameters)
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42.65.Re
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(Ultrafast processes; optical pulse generation and pulse compression)
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