Development of an optoelectronic integrated circuit for indoor optical wireless communication systems

作者：Brandl P^*; Zimmermann H

来源：European Transactions on Telecommunications, 2014, 25(6): 629-637.

DOI：10.1002/ett.2777

Indoor optical wireless communication systems use in most cases discrete built receivers. The analogue part of receivers consists of a photodetector and an amplifier. In this paper, we present a fully integrated optoelectronic integrated circuit that combines a photodetector and an amplifier into one single receiver chip. We show the evolution of such receivers and examine the benefits of their production as standard semiconductor chip. We developed a fully integrated receiver for a 3Gbit/s communication in standard BiCMOS technology. We expanded the receiver by additional photodetectors to have the possibility of implementing an automatic alignment system. To demonstrate the performance of this receiver, we built a complete indoor optical wireless communication system. We increased the working area of the system by applying two strategies at the transmitter side. First, we used an adaptive optical system to influence the laser spot diameter. Second, to steer the laser beam, we included a micro-electro-mechanical system.

• 出版日期2014-6