This optics focuses in the vertical and horizontal plane. The vertical focusing is optimized by sub-dividing the guide height into 9 channels with parabolic profiles. The horizontal focusing needs to be only moderate, thus it is sufficient to use a linear tapering.
type: multi-channel parabolic optics – 9 channels
path/profile: truly curved parabolic, linear tapering
cross-section: 20 × 90mm² → 12 × 52mm²
length: 1.8 m
coating: Ni/Ti, m = 3, 3.6
substrate: float glass, Borofloat
pronounced beam focusing