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A high-speed tunable optical filter using a semiconductor double-ring resonator

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6 Author(s)
S. Matsuo ; NTT Photonics Labs., NTT Corp., Kanagawa, Japan ; Y. Ohiso ; K. Tateno ; T. Segawa
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A high-speed tunable optical filter incorporating a semiconductor double-ring resonator was fabricated using the InGaAsP-InP material system. This device has double-ring structure, in which two ring resonators are connected in series, to achieve the widely tuning range. This device exhibits the total free-spectral range (FSR) of 13.5 nm and the crosstalk of -9.5 dB. The radii of the rings are 25.2 and 17.8 μm, which correspond to FSRs of 340 and 425 GHz, respectively. The switching time of the device is 2.5 ns.

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Indium Phosphide and Related Materials Conference, 2002. IPRM. 14th

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