Summary the understanding of lidt is an important

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Summary The understanding of LIDT is an important prerequisite to accurately specifying laser optics. Whilst there are many factors to consider with complete understanding specifying should be relatively straightforward. Knowledge of the maximum fluence or intensity of your laser beam on the optic, taking into account all profile and hot spot considerations, leads to a required LIDT. An LIDT specified at this value or higher with the relevant beam parameters for your application will lead to an optic that meets your requirements. LIDT’s specified higher than this value will add cost and should be unnecessary with an experienced laser optics manufacturer as they should consistently meet their quoted LIDT on all components. References ISO 21254-1:2011 – Lasers and laser-related equipment Laser-induced damage thresholds of bulk and coating optical ma- terials at 1030 nm, 500 fs, Laurent Gallais and Mireille Commande, Appl. Opt. 53, A186-A196 (2014) Fundamental mechanisms of laser-induced damage in optical ma- terials: today’s state of understanding and problems, Alexander A. Manenkov, Opt. Eng. 53(1) 010901 (9 January 2014) Experimental demonstration of laser damage caused by interface coupling effects of substrate surface and coating layers, Yingjie Chai et al., Opt. Lett. 40, 3731-3734 (2015) Influence of the beam-focus size on femtosecond laser-induced dam- age threshold in fused silica, N. Sanner et al., Proc. SPIE 6881, Commercial and Biomedical Applications of Ultrafast Lasers VIII, 68810W (20 February 2008) Pulse-shape and pulse-length scaling of ns pulse laser damage thresh- old due to rate limiting by thermal conduction, Michael D. Feit et al. , Proc. SPIE 3244, Laser-Induced Damage in Optical Materials: 1997, (20 April 1998) Learn more about LIDT of Laser Components at UNDERSTANDING AND SPECIFYING LIDT OF LASER COMPONENTS Variables that Affect LDT/LIDT Laser Substrate Coating Output Power Material Deposited Material Pulse Duration Surface Quality Deposition Process Pulse Repetition Rate Cleanliness Pre-Coating Prepa- ration and Cleaning Beam Profile Reactivity to the Environment Lot-to-Lot Control Beam Diameter (1/e2) Material Absorption Coating Design and Optimization Wavelength Material Homoge- neity Protective Layers
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