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Qualification of laser optics for high-power LIDAR space missions

Bartels, Nils and Schröder, Helmut and Allenspacher, Paul and Riede, Wolfgang (2019) Qualification of laser optics for high-power LIDAR space missions. ALT International Conference: Advanced Laser Technologies, HiLASE Workshop, Prag, Tschechien.

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Space environment presents unique challenges for the operation of optics and optical coatings as part of laser systems. This talk summarizes the test technology status for qualifying single component laser optics for space applications and lessons learned from these tests. Tests involve the measurement of laser-induced damage thresholds (LIDT) according to the S-on-1 test procedure detailed in ISO 21254-2 [1] as well as raster scans to test large surface areas. Another topic is the investigation of laser-induced molecular contamination (LIMC), which can degrade optical components and furthermore dramatically lower the LIDT. We recently developed an ISO technical report [2] describing the systematic measurement of LIMC. Methods to prevent and clean laser-induced deposits are also presented. Finally, the degradation of non-linear optical crystals due to ionizing radiation (space radiation) and methods for ground-based testing are discussed. [1] ISO 21254 (all parts), Lasers and laser-related equipment, Test methods for laser-induced damage threshold [2] ISO/TR 20811:2017(E), Optics and photonics, Lasers and laser-related equipment, Laser-induced molecular contamination

Item URL in elib:https://elib.dlr.de/132745/
Document Type:Conference or Workshop Item (Speech)
Title:Qualification of laser optics for high-power LIDAR space missions
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Bartels, NilsNils.Bartels (at) dlr.deUNSPECIFIED
Schröder, HelmutHelmut.Schroeder (at) dlr.deUNSPECIFIED
Allenspacher, PaulPaul.Allenspacher (at) dlr.deUNSPECIFIED
Riede, WolfgangWolfgang.Riede (at) dlr.deUNSPECIFIED
Date:September 2019
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Schädigungen an Laseroptiken, Laserinduzierte Kontamination, Laseroptiken für Anwendungen im Weltraum
Event Title:ALT International Conference: Advanced Laser Technologies, HiLASE Workshop
Event Location:Prag, Tschechien
Event Type:international Conference
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:other
DLR - Research area:Raumfahrt
DLR - Program:R - no assignment
DLR - Research theme (Project):R - no assignment
Location: Stuttgart
Institutes and Institutions:Institute of Technical Physics > Active Optical Systems
Deposited By: Bartels, Nils
Deposited On:07 Jan 2020 10:08
Last Modified:07 Jan 2020 10:08

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