Transporting CDMA signals over an analog optical link

We have investigated transmitting wireless code-division multiple-access (CDMA) signals from a remote antenna to a centralized base station over an analog optical link. We present specifications for transmission of standard (IS-95) CDMA signals and demonstrate that unisolated uncooled lasers can meet these requirements. Tests were conducted using both a 1.3-mu m Fabry-Perot laser and a 1.55-mu m distributed-feedback laser (DFB).