Harmonic Separators for UV Laser Applications

06 May 2020

Nd:YAG LaserLine harmonic separators are designed to separate specific Nd:YAG laser harmonic wavelengths. The coatings for harmonic separators are deposited on λ/10 UV Fused Silica substrates using advanced Ion Beam Sputtering technology. These separators feature high reflection values and high LIDT.

The list of EKSMA Optics catalog Nd:YAG harmonic separators has just been expanded to include harmonic separators for the UV wavelengths – 266 nm and 355 nm.

Typical specifications of Nd:YAG UV harmonic separators operating at AOI=45°:

• Reflected wavelength: T>99.5% at 355 nm or R>99.0% at 266 nm
• Transmitted wavelength: T>98% at 532 nm and T>99% at 1064 nm
• High LIDT: >1 J/cm² at 266 nm, >5 J/cm² at 355 nm, >5 J/cm² at 532 nm and 1064 nm, measured at 10 ns, 100 Hz

Advanced Coatings based on Ion-Beam Sputtering Technology

EKSMA Optics ion-beam sputtered coating facility allows us to meet the most critical demands on laser optics. Our optical engineering team can design and develop highly customized optical components, contact us to discuss your requirements.

Ion-beam sputtered coatings feature:

• Precisely controlled coating spectral parameters
• Highest LIDT in comparison with other coating technologies
• Stability of spectral performance and long lifetime in changing conditions