Recent progress on the infrared Michelson array

Construction of a two-telescope Michelson spatial inteferometer to be operated at a nominal wavelength of 2.2 microns in the near-IR began in May 1987. Nearly all of the mechanical, electronic, and optical hardware of the Infrared Michelson Array (IRNMA) is currently in place and has been tested. Proof-of-concept has been demonstrated, and efforts are currently underway to improve the system operation to produce reliable, calibrated fringe visibilities.