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Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 24,
  • Issue 5,
  • pp. 1989-
  • (2006)

Free Space Adaptive Optical Interconnect at 1.25 Gb/s, With Beam Steering Using a Ferroelectric Liquid-Crystal SLM

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Abstract

A free space adaptive optical interconnect is reported, in which an optically modulated channel from a vertical-cavity surface-emitting laser at 1.25 Gb/s is steered using reconfigurable binary phase gratings displayed on a ferroelectric liquid crystal on silicon (LCOS) spatial light modulator (SLM), to correct for misalignment. The optical system, and addressing scheme to maintain a transparent optical path, is described. The measured optical losses total 13.6 dB, sufficient to give a bit error rate (BER) of 10<sup>-12</sup> with current optical transmitter and receiver technology. This is, to our knowledge, the first demonstration of a high-speed data transmission through an adaptive optical interconnect using an "off-the-shelf" commercial ferroelectric display panel.

© 2006 IEEE

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