Despite the remarkable growth in communication technologies, there is an increased requirement for integration of heterogeneous technologies, particularly mobile and wireless communications, into a backbone network being capable of providing mobile, broadband, reliable and ever-present services to end users. Radio-over-Fiber technology appears to be an emerging and efficient solution towards the seamless integration of optical and wireless networks for future broadband communications. This paper discusses the concept and the fundamental issues of radio over fiber technology and provides a brief survey on the current state of the art. Additionally, it presents an overview of the ongoing work at the Research and Development for Telecommunications Laboratory (RDTL) of the Technological Educational Institution (TEI) of Athens