Operational Conditions for Extinction Ratio Improvement in Ultralong SOAs

Patrick Runge,Robert Elschner,Christian-Alexander Bunge,Klaus Petermann,Michael Schlak,Bernd Sartorius

IEEE Photonics Technology Letters（2009）

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摘要

The extinction ratio (ER) improvement in ultralong semiconductor optical amplifiers (UL-SOAs) is studied in dependence on their driving conditions. A stable process potentially useful for simple high-speed all-optical regeneration is observed. Furthermore, results indicate that a Bogatov-like effect is the reason for the ER improvement in the UL-SOA's saturated section.

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关键词

Extinction ratio,Erbium,Semiconductor optical amplifiers,Charge carrier density,Repeaters,Optical fiber communication,Optical interferometry,Charge carrier lifetime,Gratings

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