Ultrafast all-optical switching in GaAlAs integrated interferometer in 1.55 mu m spectral region |
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| Authors: | Al-Hemyari K. Aitchison J.S. Ironside C.N. Kennedy G.T. Grant R.S. Sibbett W. |
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| Affiliation: | Dept. of Electron. & Electr. Eng., Glasgow Univ., UK; |
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| Abstract: | The first observation is reported of ultrafast all-optical switching in an integrated asymmetric Mach-Zehnder interferometer, using the nonresonant nonlinearity in Ga/sub 0.82/Al/sub 0.18/As below half the bandgap. A relative switching fraction of more than 80% has been achieved using 330 fs pulses at around 1.55 mu m from a coupled-cavity mode-locked colour centre laser.<> |
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