KGW crystals

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KGW crystals

Unpoled KGW, KYW and other crystals for Raman conversion

Clear Aperture, %	>90
Laser Damage Threshold, J/cm²	>10 J/cm² @1064 nm, 10 ns
Length Tolerance, mm	±0.1 mm
Orientation	b-cut
Parallelism Error, arcsec	<20 arcsec
Protective chamfers	<0.1 mm at 45°
Surface Flatness	<λ/8 @632.8 nm
Surface Quality, S-D	10/5 s-d
Wavefront Distortion	<λ/4 @632.8 nm
Mounting	unmounted

Description

Details

Potassium gadolinium tungstate (KGd(WO4)2, KGW) crystals feature good mechanical properties, relatively good thermal conductivity (2.5-3.4 Wm-1K-1), and a wide transparency range, which spans from 350 nm to 5 µm. KGW as a Raman crystal features two large Raman modes at 768 cm-1 and 901 cm-1, which are pump polarization dependent. Laserand recommends using KGW crystal as a Raman shifter for picosecond applications.

Features

Broad transparency range from 300 nm to 5 μm
Two pump polarization-dependent Raman shifts at 768 cm^-1 and 901 cm^-1
Excellent Raman shifter for picosecond applications
Custom dimensions, orientation, and coatings available upon request

Applications

Raman generator pumped by commercially available picosecond Nd:YAG laser

Name	Coatings	Length, mm	Price	Request
Please request your custom spec products			Request a quote