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A novel all-optical oscillator is demonstrated for the first time by employing a cascadable VCSOA inverter in a closed optical loop, which generates a self-sustained square-like waveform with ∼80ps switching time and 5:1 extinction ratio.
A novel all-optical oscillator is demonstrated for the first time by employing a cascadable VCSOA inverter in a closed optical loop, which generates a self-sustained square-like waveform with ~80 ps switching time and 5:1 extinction ratio.
Clockwise and counterclockwise bistability are demonstrated in 1550 nm VCSOAs at input powers two orders of magnitude lower than previously. Butterfly bistability is also observed for the first time in VCSOAs.
Clockwise and counterclockwise bistability are demonstrated in 1550 nm vertical-cavity semiconductor optical amplifiers (VCSOAs) at input powers two orders of magnitude lower than previously. Butterfly bistability is also observed for the first time in VCSOAs.
We demonstrate optical image inversion and edge detection by employing a VCSOA in the focal plane of a 4-f optical system to manipulate both phase and amplitude of the zero-order spatial frequency component of images.
We have demonstrated, the first time to our knowledge, a low-input intensity high-contrast (10:1) optical AND gate based on the differential gain (optical bistability) observed in an 850 nm GaAs vertical-cavity semiconductor optical amplifier (VCSOA). The input switching power is about 6 μW, which equals to the intensity of 16nW/μm 2 . It is about 2 orders of magnitude lower than in in-plane...
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