Optical signal routing using emission packet positioning of semiconductor heterostructure |
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Authors: | H. Tsukamoto T.D. Boone J. Han J.M. Woodall |
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Affiliation: | Dept. of Electr. Eng., Yale Univ., New Haven, CT, USA; |
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Abstract: | We present a novel optical switching technique utilizing emission packet positioning of semiconductor heterostructure. A modulation-doped p-AlGaAs-GaAs heterostructure is employed to control spontaneous emission packet positioning with electric fields. Emission packets generated by optical input signals are brought over 150 /spl mu/m with electric fields, so the output fibers can detect the emission intensity as signals. The first-order analysis indicates that the drift velocity of minority electrons in GaAs limits the detectable maximum data rate and nanoseconds timescale signal routing operation at 20 Gb/s is possible at an electron drift velocity of 2/spl times/10/sup 7/ cm/s. |
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