VLOC grows large diameter neodymium doped yttrium aluminum garnet (Nd:YAG) crystals using the Czochralski technique. The use of high quality starting materials for crystal growth, whole boule interferometry, and precise measurement of Nd concentration using transmission spectroscopy and fluorescence lifetime measurements, assures that each crystal will perform to customer specifications. Full documentation is available for every shipment, and VLOC maintains traceability on all material produced, from finished laser material back to starting oxides. State-of-the-art fabrication and coating processes enable VLOC to provide consistently reliable finished product. VLOC produces a wide variety of finished laser rods, as well as supplying Nd:YAG material. Our general Nd:YAG production capabilities include:

• Rod sizes from 2mm to 12.5mm in diameter and from 1mm to 180mm in length
• Nd dopant concentrations between 0.6 and 1.3%
• Polished and AR coated barrels
• Slabs with apertures of up to 7mm X 15mm
• MIL-C-675C adhesion, abrasion and humidity resistance
• Damage threshold of over 15 J/cm²
• A wide variety of anti-reflection, partial reflector, high reflector and dichroic coatings
• Premium grade Nd:YAG, with lower wavefront distortion, is available upon request

Coatings

Several different high reflector, anti-reflection and dichroic optical coatings can be applied to Nd:YAG rods, depending upon their exact configuration and use.