The design and the implementation of a modular spot-array generator for a modulator-based free-space optical interconnect is presented. Two cascaded diffractive optical elements produce 4 × 8 clusters on a 1600 μm × 800 μm pitch, where each cluster is a 4 × 4 array of (1/<i>e</i><sup>2</sup>) 13.1-μm-radius spots on a 90-μm pitch. The spot-array generator is kinematically aligned to the interconnect system such that no realignment is necessary between removal and reinsertion. Characterization results are presented.
© 2000 Optical Society of America
Daniel F.- Brosseau, Frédéric Lacroix, Michael H. Ayliffe, Eric Bernier, Brian Robertson, Frank A. P. Tooley, David V. Plant, and Andrew G. Kirk, "Design, Implementation, and Characterization of a Kinematically Aligned, Cascaded Spot- Array Generator for a Modulator-Based Free-Space Optical Interconnect," Appl. Opt. 39, 733-745 (2000)