31 May 2013 High-power-handling linear-integrated coherent photoreceivers for RF photonics
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We report integrated coherent optical receivers designed specifically for RF Photonics applications. These receivers may be implemented in either single- or dual-polarization (DP) systems which utilize I/Q (in-phase, quadrature) phase modulation. The integrated receivers incorporate a monolithic 90 degree optical hybrid followed by eight high power-handling InGaAs photodiodes. Linear operation to +27 dBm of total optical input power, 20 mA photocurrent per diode, output third-order intercept (OIP3) > 40 dBm, third-order harmonic distortion < -100 dBc, and RF bandwidths > 4 GHz is presented. Such photoreceiver power-handling and linearity is required to optimize the photonic system spurious free dynamic range (SFDR), noise figure (NF) and link gain.
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Abhay Joshi, Abhay Joshi, Shubhashish Datta, Shubhashish Datta, Jim Rue, Jim Rue, Sruti Rajagopalan, Sruti Rajagopalan, Shaun Lemke, Shaun Lemke, } "High-power-handling linear-integrated coherent photoreceivers for RF photonics", Proc. SPIE 8720, Photonic Applications for Aerospace, Commercial, and Harsh Environments IV, 872011 (31 May 2013); doi: 10.1117/12.2016613; https://doi.org/10.1117/12.2016613

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