All-optical switching at multi-100-Gb/s data rates with Mach-Zehnder interferometer switches
Tóm tắt
We present experimental and theoretical results on ultrafast nonlinear dynamics in InGaAsP semiconductor optical amplifiers (SOAs). Carrier heating, spectral hole burning, and two-photon absorption are analyzed by heterodyne pump-probe experiments which deliver basic model parameters like gain-phase coupling parameters of the material. The impact on the device performance induced by these physical effects is verified by cross-gain/cross-phase experiments on InGaAsP-based SOAs and Mach-Zehnder interferometer switches. In the co-propagation arrangement, the switching window with maximum transmission is shown to be 1.5 ps which translates into demultiplexing capabilities beyond 600 Gb/s. Calculations based on a distributed rate equation model show that, for high-speed applications, the switching window can be limited by pulse saturation and by subpicosecond nonlinear effects.
Từ khóa
#Optical interferometry #Optical signal processing #Optical wavelength conversion #Fiber nonlinear optics #High speed optical techniques #Optical saturation #Ultrafast optics #Optical mixing #Optical pumping #SwitchesTài liệu tham khảo
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