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/e2) 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
Original Manuscript: May 24, 1999
Revised Manuscript: October 25, 1999
Published: February 10, 2000
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)