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This paper talks about the developments in silicon photonic devices which exploit the inherent high refractive index contrasts achievable on an SOI platform. We will focus on the optical modulator which has been designed for speeds up to 40Gbps. We will also describe the design and performance of a photonic integrated transmitter chip, which has been demonstrated to transmit at an aggregate data rate...
A high-speed silicon optical modulator based on the free carrier plasma dispersion effect is presented. It is based on carrier depletion of a pn diode embedded inside a silicon-on-insulator waveguide. To achieve high-speed performance, a travelling-wave design is used to allow co-propagation of the electrical and optical signals along the length of the device. The resulting modulator has a 3 dB bandwidth...
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