Design and implementation on fiber transmission with automatic photo-power control system

摘要

We design an automatic photo-power control system (APC) to control Transmitter Optical Sub-Assembly (TOSA) optical-power to be stable at a wide range of temperature variation, prove long transmission distance for fiber transmission at high temperatures. The architecture of the APC circuit include current control and electrical-power control system has a microprocessor be core unit to send and receive data, with the Receiver Optical Sub-Assembly (ROSA) and readout circuit. Because of the output photo-power has more effects of fiber communication. We focus on APC to improve communication quality and long transmission distance.