tender for purchase of fiber laser for cmrg project , fiber laser and its accessories • wavelength: 405 ± 5 nm (violet) - the classic he-ne laser line. • operating current: 4 - 6 ma (typical) • operating voltage: 5.0v (typical) • rated voltage: 220 v ± 22 v, 50 hz mains input (for power supply) • rated input power: 20 w (typical) • output power: 50mw (choose based on your illumination needs) • connector: sma • spatial mode: fiber coupled • power cord • mounting: laser tube + power supply unit (psu) - includes power cord for 220 v mains. • stability: long coherence length, stable output intensity - suited for speckle imaging. • safety: class iiib (for 5 mw) - use safety goggles rated for 632.8 nm. beam expanders • wavefront distortion: λ/4 • transmission:96% • wavength range: 400-700 nm • damaged threshold:500mw/cm2 • surface quality: 40-20 (scratch dig) • annual repair coating, ravg: 0.5% @ 400-700 nm mouting bench • single slit • grating 500 lines • optical bench: 1.5 m • screen • plano-concave lens o coating: broadband annual repair (400-700 nm) o diameter: 25.4 mm o focal length: −25 mm