Pulse shortening to 25 ps in a cw mode-locked Nd: YAG laser by introducing an intracavity etalon (original) (raw)

Abstract

The gain spectrum_G(v)_ of a cw mode-locked Nd:YAG laser is flattened by a properly designed intracavity etalon. The increase in amplification bandwidth allows the generation of very stable trains of pulses shorter than that of standard systems. A reduction of the pulse width from 70 to 25 ps is observed by incorporating a BK 7 platelet of 420 μm thickness in the resonator. The properties of the laser are investigated as a function of the thickness and the orientation angle of the etalon. The laser performance is found to be considerably influenced by the fact that the Nd3+ laser transition at 1.064 μm consists of a line doublet.

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Authors and Affiliations

1. Physik Department, Technische Universität, D-8000, München 2, Germany
   H. Roskos, T. Robl & A. Seilmeier

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1. H. Roskos
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2. T. Robl
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3. A. Seilmeier
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Roskos, H., Robl, T. & Seilmeier, A. Pulse shortening to 25 ps in a cw mode-locked Nd: YAG laser by introducing an intracavity etalon.Appl. Phys. B 40, 59–65 (1986). https://doi.org/10.1007/BF00694777

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• Received: 02 January 1986
• Accepted: 25 February 1986
• Issue Date: June 1986
• DOI: https://doi.org/10.1007/BF00694777

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