Spatial period converter with monolithic zoom

A system for providing a plurality of parallel optical beams, the system comprising:

• an array of objective lenses defining an intermediate focal plane;
• and
• an optical beam spatial period converter, the optical beam spatial period converter comprising:
• a substrate comprising one or more flexure islands, wherein when the one or more flexure islands comprise two or more flexure islands, the two or more flexure islands are coupled to one another in series and a translational movement of a first flexure island of the two or more flexure islands is configured to cause a translational movement of a second flexure island of the two or more flexure islands;
• and
• a plurality of reflective elements disposed on a surface of the substrate,
• wherein the plurality of reflective elements comprises a plurality of first spacing reflective elements and a plurality of second spacing reflective elements, the plurality of second spacing reflective elements being disposed on the one or more flexure islands, each first spacing reflective element of the plurality of first spacing reflecting elements is configured to receive a respective incoming optical beam of an incoming array of optical beams and redirect the respective incoming optical beam to provide an intermediate optical beam to a respective second spacing reflective element, each second spacing reflective element of the plurality of second spacing reflective elements is configured to receive a respective intermediate optical beam and redirect the respective intermediate optical beam to provide a respective outgoing optical beam, wherein the respective outgoing optical beam is one of plurality of outgoing optical beams that form an outgoing array of optical beams, the outgoing array of optical beams having a different spatial period from the incoming array of optical beams.