Effects of spatial hole burning in 888 nm pumped, passively mode-locked high-power Nd:YVO4 lasers (original) (raw)

Abstract

We report on an experimental study of 888 nm pumped, passively mode-locked, high-power Nd:YVO4 lasers with an enhanced cavity design, involving spatial hole burning (SHB) in the active medium. We observed a significant pulse shortening due to the concept of “Gain-at-the end,” despite using long gain length up to 30 mm. A 31.6 W average output power TEM00 Nd:YVO4 oscillator, providing 16.2 ps pulses at an repetition rate of 96 MHz is presented. The pulse duration turns out to be primarily a function of the effective gain length, which can be explained by means of SHB. A further pulse shortening with decreasing gain length down to 9.5 ps at 11.1 W average output power is demonstrated.

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Authors and Affiliations

  1. Photonik-Zentrum Kaiserslautern e.V., Kohlenhofstr. 10, 67663, Kaiserslautern, Germany
    C. Schäfer, C. Theobald, R. Wallenstein & J. A. L’huillier

Authors

  1. C. Schäfer
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  2. C. Theobald
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  3. R. Wallenstein
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  4. J. A. L’huillier
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Correspondence toC. Schäfer.

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Schäfer, C., Theobald, C., Wallenstein, R. et al. Effects of spatial hole burning in 888 nm pumped, passively mode-locked high-power Nd:YVO4 lasers.Appl. Phys. B 102, 523–528 (2011). https://doi.org/10.1007/s00340-011-4409-3

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