期刊
OPTICS EXPRESS
卷 13, 期 25, 页码 10109-10114出版社
OPTICAL SOC AMER
DOI: 10.1364/OPEX.13.010109
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Using silicon photonic wire waveguides, we constructed compact 1 x 1, 1 x 2, and 1 x 4 Mach-Zehnder interferometer type optical switches on a silicon-on-insulator substrate and demonstrated their switching operations through the thermo-optic effect. These switches were smaller than 140 x 65, 85 x 30, and 190 x 75 mu m, respectively. At a 1550-nm wavelength, we obtained an extinction ratio larger than 30 dB, a switching power as low as 90 mW, and a switching response time of less than 100 mu s. Furthermore, switching operations were successfully demonstrated for the 1 x 4 switch. (c) 2005 Optical Society of America.
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