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Semiconductor optical device monolithically integrating optical waveguides with photodiodes having a shared bias pad and apparatus implementing the same
Semiconductor optical device monolithically integrating optical waveguides with photodiodes having a shared bias pad and apparatus implementing the same
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机译:半导体光学装置将光波导与具有共享偏压垫的光电二极管单片集成,并实现该装置
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摘要
A functional optical device applicable to a coherent optical communication system as a front end device is disclosed. The functional optical device includes a pair of light-receiving elements of a type of waveguide photodiode (PD), a pair of signal pads, a pair of ground pads, a bias pad, and a substrate that monolithically integrates those elements thereon. The light-receiving elements generate a photocurrent complementary to each other in respective anodes thereof; while, receive biases through the bias pad common to the light-receiving elements. Those pads are disposed along an edge of the substrate such that the signal pads put the bias pads therebetween, and the ground pads put the signal pads and the bias pad therebetween.
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