All optical switch based on nonlinear polarization rotation (NPR) in semiconductor optical amplifier (SOA)

Guo Ning; P. Shum; Chongqing Wu; Desmond R. Lim; Vincent Wong

doi:10.1117/12.802530

11 November 2008 All optical switch based on nonlinear polarization rotation (NPR) in semiconductor optical amplifier (SOA)

Guo Ning, P. Shum, Chongqing Wu, Desmond R. Lim, Vincent Wong

Author Affiliations +

Proceedings Volume 7136, Optical Transmission, Switching, and Subsystems VI; 71361Z (2008) https://doi.org/10.1117/12.802530
Event: Asia-Pacific Optical Communications, 2008, Hangzhou, China

Abstract

An all-optical switch is proposed and demonstrated using the nonlinear polarization rotation (NPR) with linear polarization maintenance arising in a semiconductor optical amplifier (SOA). By introducing optical control pulse into the SOA, the state of polarization (SOP) of the packet signal can be switched between the vertical linear SOP and the horizontal linear SOP on the Poicáre sphere (PS). Then a polarization beam splitter (PBS) is used to perform polarization-to-intensity conversion. Thus the input packet signal can be switched between the two output ports of the PBS. And an extinction ratio of switching operation larger than 20 dB is obtained.

Citation Download Citation

Guo Ning, P. Shum, Chongqing Wu, Desmond R. Lim, and Vincent Wong "All optical switch based on nonlinear polarization rotation (NPR) in semiconductor optical amplifier (SOA)", Proc. SPIE 7136, Optical Transmission, Switching, and Subsystems VI, 71361Z (11 November 2008); https://doi.org/10.1117/12.802530

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