For fluorescence imaging, optical tweezers and Raman spectroscopy applications, Laser Quantum Ltd. has announced the redesigned Ventus 532 green lasers. The family of products, which was launched in 2001 as midpower green lasers for scientific laboratories, has grown to include a power range from 50 mW to 1.5 W, with a number of laser heads. The redesign includes a more compact head and improvements in beam quality. Noise levels are down from 2% to 0.5% (0.15% for the higher powers), and power stability has been reduced from 2% to 0.4%. M2, divergence and weight also have been improved. The compact devices produce a diffraction-limited beam, offer a lifetime of >40,000-h mean time to failure, are hermetically sealed and have a permanently aligned cavity.