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High-performance InP-InGaAsP optical space switches are reported, which in monolithic four switch arrangements reach fiber-to-fiber losses as low as 5 dB. Polarization insensitivity is within /spl plusmn/0.5 dB. On-off ratios throughout the 1.53-1.56 μm wavelength range exceed 15 dB. Switch rearrangement times are below 200 ps.
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Krähenbühl et al. (1996) studied this question.
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