Abstract
We report the first experimental demonstration of a monolithically integrated hybrid dilated 2×2 modular optical switch using Mach-Zehnder modulators as low-loss 1×2 switching elements and short semiconductor optical amplifiers to provide additional extinction and gain. An excellent 40dB cross-talk/extinction ratio is recorded with data-modulated signal-to-noise ratios of up to 44dB in a 0.1nm bandwidth. A switching time of 3ns is demonstrated. Bit error rate studies show extremely low subsystem penalties of less than 0.1dB, and studies indicate that, by using this hybrid switch building block, an 8×8 port switch could be achieved with 14dB input power dynamic range for subsystem penalties of less than 0.5dB.
Published Version
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