Model 2501 is a fixed-focus CW diode-pumped laser with a beam divergence of <1.2 mrad. The housing measures 11 37.39 mm. Model 2503 has a beam divergence of <0.8 mrad. The housing measures 12 47.4 mm. Both modules require 3 Vdc with operating current about 300 mA.
BEA Lasers Inc., 2330 Brickvale Ave., Elk Grove Village, IL 60007, (847) 238-1420, www.bealasers.com