We experimentally demonstrate a 31.2-dB-contrast all-optical AND gate based on a Fabry-Pérot semiconductor optical amplifier (SOA). Typically, cross phase modulation is the dominant nonlinearity as it shifts a FPSOA resonance to trigger the AND-gate functionality. Cross polarization modulation (XPolM) is introduced here to produce a distinct output SOP for the high-state power that is different from the low-state power. A linear polarizer is used to block the low-state power to enhance the contrast by 24 dB, far exceeding previous demonstrations for such FPSOA gates.
Library of Congress Subject Headings
Metal oxide semiconductors, Complementary--Design and construction; Metal oxide semiconductors, Complementary--Mathematical models; Optical amplifiers
Telecommunications Engineering Technology (MS)
Department, Program, or Center
Electrical, Computer and Telecommunications Engineering Technology (CAST)
Al Graiti, Saif, "Extreme Contrast Enchantment of an All-Optical AND Gate" (2016). Thesis. Rochester Institute of Technology. Accessed from
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