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S on 1 testing of AR and HR designs at 1064 nm

Ciapponi, Alessandra and Allenspacher, Paul and Riede, Wolfgang and Herringer, Jon and Arenberg, Jonathan (2010) S on 1 testing of AR and HR designs at 1064 nm. Laser-Induced Damage in Optical Material, 7842, 78420J-1-78420J-6. SPIE. doi: 10.1117/12.867284.

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In this paper, we present test results and involved procedures of a comprehensive test campaign for S on 1 testing of laser optics with large test areas allowing the generation of a profound test database for further analysis. This database will serve as a starting point for an empirical study of the lifetime of laser optics, which will be discussed in companion paper somewhere in these proceedings [1]*. The optics are designed to operate as anti-reflective or high-reflective components at the respective test wavelengths for 0° angle-of-incidence. Both, coatings and substrates of 2.0 inch diameter are produced from the same batches to be as identical as possible. There were two different coating technologies used, e-beam and IAD e-beam, to explore a possible effect of the coating process on the long term laser irradiation behavior. The laser damage test bench is operated with a laser source delivering laser pulses in a single longitudinal mode at a repetition frequency of 100 Hz. The beam profile is of a Gaussian-shape and of high spatial quality at the fundamental Nd:YAG laser wavelength with a pulse duration of 3.5 ns at 1064 nm. Typical beam diameters on the samples were 400 μm, and usually more than 500 test sites are irradiated in one test to achieve statistical significance. The laser test procedure itself is adapted from the ISO standard 11254-2 for multiple pulse irradiations, and the LIDT evaluation is done accordingly.

Item URL in elib:https://elib.dlr.de/69067/
Document Type:Article
Title:S on 1 testing of AR and HR designs at 1064 nm
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Ciapponi, AlessandraDLRUNSPECIFIED
Allenspacher, PaulDLRUNSPECIFIED
Herringer, JonArrow Thin FilmsUNSPECIFIED
Arenberg, JonathanNorthrop Grumman Aerospace SystemsUNSPECIFIED
Journal or Publication Title:Laser-Induced Damage in Optical Material
Refereed publication:No
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:No
DOI :10.1117/12.867284
Page Range:78420J-1-78420J-6
Series Name:SPIE Laser Damage 2010
Keywords:Laser damage testing, laser optics qualification, S on 1 testing
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L - no assignment
DLR - Research theme (Project):L - no assignment (old)
Location: Stuttgart
Institutes and Institutions:Institute of Technical Physics
Deposited By: Ciapponi, Alessandra
Deposited On:28 Feb 2011 09:18
Last Modified:28 Feb 2011 09:18

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