Low-power thermooptical tuning of SOI resonator switch
Date
2006
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Abstract
A wavelength selective optical switch is developed based on a high-Q racetrack resonator making use of the large thermooptic coefficient of silicon. The racetrack resonator was fabricated using a silicon-on-insulator (SOI) single-mode rib waveguide. The resonator shows a high Q factor of 38 000 with spectral sidelobes of 11 dB down and can be thermooptically scanned over its full free-spectral range applying only 57 mW of electrical power. A low power of 17 mW is enough to tune the device from resonance to off-resonance state. The device functions as a wavelength selective optical switch with a 3-dB cutoff frequency of 210 kHz.
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IEEE Photonics Technology Letters
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IEEE
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Integrated optics, Resonator, Silicon-on-insulator (SOI) technology, Thermooptical switch, Thermooptical tuning, Cutoff frequency, Electric coils, Nonmetals, Optical design, Optical switches, Resonance, Silicon, Tuning, Cut-off frequencies, Electrical power, Free-spectral range, High Q-factor, Integrated optics, Low powers, Off-resonance, Resonator, Rib waveguides, Side-lobes, Silicon-on -insulator, Silicon-on-insulator (SOI) technology, Single modes, Thermooptical switch, Thermooptical tuning, Wavelength-selective optical switch, Resonators
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English