Efficient performance optimization of SOA-MZI devices
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Jade P Wang1, Bryan S Robinson, Shelby J Savage
1Optical Communications Group, MIT Lincoln Laboratory, Lexington, Massachusetts 02420, USA. jpwang@ll.mit.edu
Abstract:
We present a novel characterization method for semiconductor optical amplifier Mach-Zehnder interferometer (SOA-MZI) switches which combines a pump-probe measurement with an interferometer bias scan. In addition to a wealth of information on the switching dynamics for all operating points of the switch, we can create an extinction map to pinpoint regions of highest extinction for optimizing all-optical ultrafast switching. We experimentally verify the accuracy of this characterization method by performing a wavelength characterization at the optimal bias point and a nearby, non-optimal point. A 1-dB penalty was observed.
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