Free space passive optical network

Abstract

This paper proposes free space passive optical network (FSPON) as a potential candidate of high data rate access network based on optical wireless transmission. FSPON could be considered for indoor as well as outdoor deployments. Pending the progress in FSO range, it is appropriate for short range communication network. The system architecture and network architecture are depicted. A key component for the deployment success is the alignment of the remote terminal equipment’s with the free space optical splitter (FSOS). The main advantages and performances of a user terminal station are discussed. The performance comparison has been made with a simple point to point free space optical link. The FSPON capacity is limited to 6 users at the cost of low modulation scheme and high signal to noise ratio.