Journal
OPTICS EXPRESS
Volume 18, Issue 13, Pages 13805-13812Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.18.013805
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Funding
- CMC Microsystems
- Natural Sciences and Engineering Research Council of Canada
- Canadian Institute for Photonic Innovations
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We demonstrate a dynamic optical channel leveler composed of a variable optical attenuator (VOA) integrated monolithically with a defect-mediated photodiode in a silicon photonic waveguide device. An external feedback loop mimics an analog circuit such that the photodiode directly controls the VOA to provide blind channel leveling within +/- 1 dB across a 7-10 dB dynamic range for wavelengths from 1530 nm to 1570 nm. The device consumes approximately 50 mW electrical power and occupies a 6 mm x 0.1 mm footprint per channel. Dynamic leveling is accomplished without tapping optical power from the output path to the photodiode and thus the loss penalty is minimized. (C) 2010 Optical Society of America
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