A receiver technology offering both high sensitivity and spectral ef-ficiency is that of optically pre-amplified coherent detection. Our optical receivers and detectors make photodetection easy and provide the lowest noise and cleanest response possible. Our broad offering spans wavelength ranges from UV to short-wave IR for free-space and fiber-coupled configurations in many versions: high-speed, general-purpose, balanced. Abstract—This paper presents a highly-sensitive monolithic op-toelectronic receiver in 180 nm CMOS. An integrating front-end with noise matching via an negative Miller capacitance is proposed, to reduce the power penalty imposed by large PIN photodiodes (PDs). Three new multi-dot PIN PDs are. Space exploration today rely on radio frequency (RF) technologies to transmit data collected by space missions back to earth. Such RF com-munication links constitute a bottle-neck for new discoveries as their data rates fail to keep up with that generated by sophisticated instrumenta-tion aboard. We developed a high-output optical transmitter and a high-sensitivity optical receiver for long-distance transmission in the All-Photonics Network that is being promoted under IOWN (the Innovative Optical and Wireless Network). This article introduces the 400-Gbit/s optical transmitter with a.