Receive front-end optical amplifier
We will review the use of bipolar and field-effect transistors in front-end amplifiers and we will examine representative examples of receiver front-ends using p-i-n photodiodes and APDs. 1 Front-End Architectures An optical receiver's front-end design can usually be. In the intensity-modulation/direct-detection (IM-DD) system, the intensity modula-tion means that information is carried only by the intensity or power of the transmitted lightwave, not by its frequency or phase. The optical front end (OFE) is a critical part in most Optical Wireless Communica-tion (OWC) systems. Its photodiode (PD) and transimpedance amplifier (TIA) can limit the throughput, determined by the noise. After completion of its schematic view, simulation is done through Cadence Virtuoso tool.
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