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Continuing Development of an Infrared Optically Addressed Spatial Light Modulator

The applications for spatial light modulators with sensitivity in the infrared spectrum include atmospheric compensation for imaging via phase conjugation [1], reconfigurable optical fiber interconnects and incorporation in search and track devices. The design goals for our device include: high frame rate (~ 1 kHz), sensitivity at 1.55 μm, and a high resolution (MTF = 50% at 40 lp/mm). Meeting these design specifications has resulted in many technical challenges.