Abstract.
SBS mirrors as self-pumped and easy to handle non-linear optical devices are frequently used in high-power laser systems for improving the beam quality based on optical phase conjugation. Because of the non-linear behaviour, a certain pulse energy or power of incident light is needed to generate enough reflectivity for practical purposes. Therefore, reducing this “threshold” is still a main topic in the development of new schemes for optical phase conjugation. In addition to the taper concept reported earlier, this paper deals with loop schemes for reducing the power requirements. A reduction of the so-called “threshold” by a factor of between two and four was obtained with the schemes investigated using liquids and fibers.
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Received: 4 September 2001 / Revised version: 22 October 2001 / Published online: 23 November 2001
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Hänisch, C., Heuer, A. & Menzel, R. Threshold reduction of stimulated Brillouin scattering (SBS) using fiber loop schemes. Appl Phys B 73, 851–854 (2001). https://doi.org/10.1007/s003400100767
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DOI: https://doi.org/10.1007/s003400100767