New combined monocrystals Yttrium Vanadate  YVO4/Nd³⁺: YVO₄

 

New crystals differ from analogous bonded crystals by lack of junction and thus are able to withstand considerably higher energy loads without loss in quality. As is well known bonded crystals obtained by joining of undoped and Nd³⁺-doped crystals using thermal diffusion have got an optical loss on the welding border of two parts, but they lead to decreasing of laser efficiency and cracks can appear on the border at certain light load that contribute to destruction of optical rod.

Under testing our permanent laser beam research technology partners new monocrystals  have output generation characteristics 10-15 % higher than well known bonded crystals.

YVO₄/Nd³⁺:YVO₄ optical rods

 

Cross-section, mm   Length of undoped part, mm   Length of doped part, mm   Nd3+ concentration, at. %   Diameter tolerance, mm   Length tolerance, mm   Non-parallelism of end faces, sec   Surface finish   Flatness

from 2´2 to 5´10   from 1 to 5   from 1 to 10   0.1-2   ±0.1   ±0.1   10   10-5   l/10

*Sizes and dimensions of elements can be varied by customer request