U. Krishnamachari, S. Ristic, A. Ramaswamy, L. Johansson, Chin-Hui Chen, J. Klamkin, M. Piels, A. Bhardwaj, M. Rodwell, J. Bowers, L. Coldren
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Ultra-compact integrated coherent receiver for high linearity RF photonic links
We demonstrate a novel photonic integrated circuit(PIC) that combines an ultra compact trench beam splitter with monolithically integrated photodetectors and modulators. A coherent receiver is realized by flip chip bonding of this PIC with an electronic integrated circuit (EIC). Preliminary system results yield a third-order intermodulation distortion suppression of 46 dB at a signal frequency of 300 MHz.