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24 October 2012 A ring resonator optical amplitude modulator using coupling control via carrier injection in the coupler
Michael Gad, Wei Shi, Lukas Chrostowski, Nicolas A. F. Jaeger
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Proceedings Volume 8412, Photonics North 2012; 84121B (2012) https://doi.org/10.1117/12.2001458
Event: Photonics North 2012, 2012, Montréal, Canada
Abstract
A silicon racetrack resonator modulator, based on phase-match control, is proposed. The device is comprised of a straight waveguide evanescently coupled to a ring resonator in the shape of a racetrack. A PN junction, formed in the straight waveguide, is used to control the degree of phase-match in the coupler. Consequently, the coupling, and hence the power transmission, is controlled by the voltage across the PN junction. The predicted free spectral range and switching voltage are, respectively, 0.4 nm and 7.5 Volt, while the device dimensions are approximately 0.7 mm by 0.15 mm. The device behavior is analyzed using two different analytic approaches for the coupling, the results of which are compared to numerical simulations.
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Michael Gad, Wei Shi, Lukas Chrostowski, and Nicolas A. F. Jaeger "A ring resonator optical amplitude modulator using coupling control via carrier injection in the coupler", Proc. SPIE 8412, Photonics North 2012, 84121B (24 October 2012); https://doi.org/10.1117/12.2001458
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KEYWORDS
Waveguides
Resonators
Modulators
Modulation
Numerical simulations
Silicon
Refractive index
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