The authors present an optical switching/optical sampling module operating in the 1.55 µm band using ultrafast all-optical AND gates made with low temperature grown InGaAs/InAlAs multiple quantum wells. The module achieves a response time of 390 fs with a contrast ratio of 25 in a fibre-based experiment. Using the modules, all-optical demultiplexing is demonstrated for signal pulses corresponding to 1.05 Tbit/s, and the demultiplexed optical pulses are clearly detected.
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R. Takahashi ,
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Ultrafast 1.55 µm photoresponses in low-temperature-grown InGaAs/InAlAsquantum wells.
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Takahashi, R., Choi, W.Y., Kawamura, Y., Iwamura, H.: `Femtosecond all-optical AND gates based on low-temperature grown Be-dopedstrained InGaAs/InAlAs multiple quantum well', Proc. 8th annual meeting of Lasers and Electro-Optics Society, 1995, 1, p. 343–344.
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R. Takahashi ,
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Ultrafast 1.55 µm all-optical switching using low-temperature-grownmultiple quantum wells.
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http://iet.metastore.ingenta.com/content/journals/10.1049/el_19980584
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