5 March 2013 Time-resolved chirp properties of semiconductor optical amplifiers in high-speed all-optical switches
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Optical Engineering, 52(3), 035003 (2013). doi:10.1117/1.OE.52.3.035003
Abstract
The chirp properties of semiconductor optical amplifiers in all-optical switches are numerically investigated using a field propagation model. The chirp dynamics in the blue-shift and red-shift sideband are analyzed under the injection of random optical pump pulses. We also analyze the impact of the blue-detuned filtering scheme that is used to eliminate the pattern effect and enhance the operating speed of the optical switching. The reason for overshoots in eye diagrams in the blue-detuned filtering scheme is explained. We find that overshoots result from the ultrafast blue chirp induced by carrier heating and two-phonon absorption. These results are very useful for semiconductor optical amplifier-based ultrafast all-optical signal processing.
© 2013 Society of Photo-Optical Instrumentation Engineers (SPIE)
Ligong Chen, Rongguo Lu, Shangjian Zhang, Yong Liu, "Time-resolved chirp properties of semiconductor optical amplifiers in high-speed all-optical switches," Optical Engineering 52(3), 035003 (5 March 2013). http://dx.doi.org/10.1117/1.OE.52.3.035003
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KEYWORDS
Semiconductor optical amplifiers

Ultrafast phenomena

Eye

Switches

Dispersion

Filtering (signal processing)

Picosecond phenomena

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