This device consists of a PIN photodiode and a transimpedance amplifier assembled in a TO-46 package. It is designed for short-distance FDDI and ATM up to 155 Mbps. The preamplifier’s linearity and absence of automatic gain control makes it ideal also for analog applications and applications with bursty signals. Its double-lens optical system is designed for single-mode fiber as well as for multimode fiber with core diameter up to 62.5µm.