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Proceedings Paper

Laser-induced contamination of space borne laser systems: impact of organic contamination and mitigation by oxygen
Author(s): M. Hippler; P. Wagner; H. Schroeder; W. Riede
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Paper Abstract

Laser-induced contamination (LIC) is still a major risk for space based laser systems. In this paper the mitigation of LIC by oxygen is investigated. Tests were performed with a pulsed laser at 355 nm. The partial pressure of the contamination material was in the range of 10-5 -10-4 mbar. The mitigation effect showed a threshold behavior concerning the ratio between contamination and oxygen pressure. Also a cleaning effect was successfully demonstrated: previously created depositions were completely removed by irradiation at several tens Pa oxygen pressure without any remaining degradation of the optical surface.

Paper Details

Date Published: 27 September 2016
PDF: 9 pages
Proc. SPIE 9952, Systems Contamination: Prediction, Control, and Performance 2016, 99520N (27 September 2016); doi: 10.1117/12.2236897
Show Author Affiliations
M. Hippler, German Aerospace Ctr. (DLR) (Germany)
P. Wagner, German Aerospace Ctr. (DLR) (Germany)
H. Schroeder, German Aerospace Ctr. (DLR) (Germany)
W. Riede, German Aerospace Ctr. (DLR) (Germany)

Published in SPIE Proceedings Vol. 9952:
Systems Contamination: Prediction, Control, and Performance 2016
Joanne Egges; Carlos E. Soares; Eve M. Wooldridge, Editor(s)

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