Bandwidth enhancement of SOA-based switches using optical filtering: theory and experimental verification

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Abstract
We present small-signal response measurements on all-optical switches based on a single SOA followed by an optical filter. Both asymmetric MZI and band-pass type filters are investigated and theoretical predictions of a large modulation bandwidth enhancing effect are verified. The small-signal measurements of the DISC switch (SOA and asymmetric MZI) are the first of their kind.