Time-resolved chirp properties of semiconductor optical amplifiers in high-speed all-optical switches

Ligong Chen; Rongguo Lu; Shangjian Zhang; Yong Liu

doi:10.1117/1.OE.52.3.035003

5 March 2013 Time-resolved chirp properties of semiconductor optical amplifiers in high-speed all-optical switches

Ligong Chen, Rongguo Lu, Shangjian Zhang, Yong Liu

Author Affiliations +

Optical Engineering, Vol. 52, Issue 3, 035003 (March 2013). https://doi.org/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.

Citation Download Citation

Ligong Chen, Rongguo Lu, Shangjian Zhang, and Yong Liu "Time-resolved chirp properties of semiconductor optical amplifiers in high-speed all-optical switches," Optical Engineering 52(3), 035003 (5 March 2013). https://doi.org/10.1117/1.OE.52.3.035003

Published: 5 March 2013

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