We have fabricated all-semiconductor-optical-amplifier loop devices and characterized their operation with cw signals. Gain saturation in the multi-mode interference (MMI) coupler led to nonlinear coupling and hence the power-dependent switching of the devices. The active loop is important to provide gain and to redistribute the field.
Pump-probe study on nonlinear switching in an all-active-semiconductor-optical-amplifier loop device
1999-01-01
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Conference paper
Electronic Resource
English
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