The realisation of high speed, high gain, wide dynamic range analog optical receivers requires to optimize the receivers structure and the components choice. At the beginning will be discussed the constraints to make high speed, high gain, wide dynamic range analog optical receivers, the way to choose different constitutive elements and their influence on performances. Emphasis will be put on avalanche gain, transimpedance value and optical coupling in reference with dynamic range. As an application of this, the description of a field receiver will be given, showing some technological solutions. As a conclusion, some informations on the measurement equipments dnd methods will be given.