Wedge can be used individually to deviate a laser beam a set angle, or two wedges can be used together for beam steering applications.

Two wedges can be used as an anamorphic pair for beam shaping (to correct the elliptical shape of diode outputs). Or, a pair of wedges can steer a beam anywhere within a circle described by the full angle 4θ, where θ is the deviation from a single wedge.

This beam steering is accomplished by rotating the two wedges independently of each other, and is typically used to scan a beam to different locations in imaging applications.