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Gain dynamics of two-wavelength Ti:sapphire femtosecond laser

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Abstract.

We report the theory and experiments of a two-wavelength bi-tuning femtosecond Ti:sapphire laser. The cross-mode-locked gain competition is described with numerical solution and operation of the laser is accomplished in which two trains of femtosecond pulses cross in the Ti:sapphire rod. For this reason, a cross-bearings technique is used. The laser resonator is a six-mirror bi-cavity, and two beams of pump lights cross in Ti:sapphire crystal. Two trains of sub-30 fs cross-mode-locked pulses have been generated with independent tunable wavelength when the pump power of the argon laser is approximately 5 W. As the design of the bi-cavity is fine, not only strong gain competition is overcome, but also stable output characteristics are performed.

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Authors and Affiliations

  1. State Key Lab. of Transient Optics Technology, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, P.O. Box 80, Xi’an 710068, P.R. China (Fax:+86-29/8484473), , , , , , CN

    W. Shuicai, Z. Changjun, H. Junfang, Y. Hongru, X. Dong & H. Xun

Authors
  1. W. Shuicai
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  2. Z. Changjun
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  3. H. Junfang
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  4. Y. Hongru
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  5. X. Dong
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  6. H. Xun
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Received: 21 July 1998 / Revised version: 5 January 1999 / Published online: 30 July 1999

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Shuicai, W., Changjun, Z., Junfang, H. et al. Gain dynamics of two-wavelength Ti:sapphire femtosecond laser . Appl Phys B 69, 211–216 (1999). https://doi.org/10.1007/s003400050796

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  • DOI: https://doi.org/10.1007/s003400050796

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