in the beam path of an optical cross connect between the front face of a fiber block and a moveable mirror array are placed a telecentric lens and multi - surface optical element . the lens is placed adjacent the front face with a front focal plane coinciding with the front face . the substantially parallel beam path axes between the front face and the telecentric lens are converted by the lens into dispersing directions towards the optical element . discrete optical surfaces of the optical element redirect the dispersing beam paths in a fashion such that the beam paths coincide in the following with corresponding moveable mirrors of a mirror array . pitches of arrayed fiber ends and of the optical surfaces as well as the moveable mirrors are independently selectable . the telecentric lens simultaneously focuses the signal beams with improved beam separation and reduced signal loss .