1 April 2007 Dynamic range and switching speed of an optical switch matrix based on cascaded semiconductor optical amplifier gates with holding-light injection
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Optical Engineering, 46(4), 045002 (2007). doi:10.1117/1.2720516
Abstract
The input power dynamic range and switching speed of an optical switch matrix based on cascaded semiconductor optical amplifier (SOA) gates with holding-light injection were studied numerically using the carrier-density rate equation of the SOA and a dynamic bit-error-rate calculation method. It is shown that holding-light injection can effectively extend the input power dynamic range to high signal input powers, on account of the suppression of the patterning effect in the presence of holding light. Moreover, cascaded SOA gates tend to provide a more linear output-input relation with holding-light injection. A useful by-product of holding-light injection is the enhanced switching speed of the SOA. The switch-on time with holding light is always shorter than that without, owing to a shorter carrier lifetime in the presence of holding light.
Wei Hong, Dexiu Huang, Xinliang Zhang, Guangxi Zhu, "Dynamic range and switching speed of an optical switch matrix based on cascaded semiconductor optical amplifier gates with holding-light injection," Optical Engineering 46(4), 045002 (1 April 2007). https://doi.org/10.1117/1.2720516
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