Neodymium: Yttrium Lithium Fluoride - Nd:YLF SYNOPTICS currently manufactures Nd:YLF as a standard product and produces YLF doped with other rare earths as required. YLF offers an alternative to the more common YAG host for near IR operation. YLF is grown utilizing a modified Czochralski technique. The as-grown crystals are then processed into laser rods or slabs, coated in house, and inspected per customer specifications. Advantages Of YLF Include: High power, low beam divergence, efficient single mode operation. High average power Q-switched at a moderate repetition rate. Linear polarized resonators for Q-switching and frequency doubling. Potential uniform mode for large diameter rods or slabs. Stimulated emission cross section and lifetime product is favorable for low CW threshold. 1.053 µm output matches gain curves of Nd:Glass and performs well as an oscillator and pre-amplifier for this host. The combination of weak thermal lensing, large fluorescence line width and naturally polarized oscillation makes Nd:YLF an excellent material for CW, modelocked operation.

Standard Rod Specifications Dopant Concentration ± 0.2 at % of specified amount (1.0 at % standard with up to 2.0 at % available) Available Dopants Nd, Er, Tm, Ho, Pr (others upon request) Nd Doped Lasing Wavelengths Wavefront Distortion Extinction Ratio *Rod Axis Orientation 1053, 1047, and 1313 nm > λ / 4 per inch of rod length (λ = 632 nm) standard 25 dB minimum within 5˚ of the crystal “a” axis * drawings provided to show orientation to “c” axis for tilted rods Dimensional / Mechanical Specifications Diameter Tolerance Length Tolerance Rod End Polished Flatness End Face Parallelism End Face...