No compromises with the single fiber
In a specific application, a single fiber should be used without restrictions in terms of the data rate. In general, two fibers are required in order to be able to transmit data in full duplex mode. Our customer was not prepared to accept this compromise. Instead, the SPEED-OTS-5000 system, which made the existing channels bidirectional, was used.
If only one single fiber is available, usually different wavelength are needed for a bidirectional communication. Thanks to the SPEED-OTS-5000 bidirectional communication can be established with the same wavelength for sending and receiving without retrofitting or changing the devices.
Due to the low insertion loss, the high stability and reliability, an uncomplicated coupling over a range of around 60 kilometers was possible. Expensive special hardware is not necessary for the operation. Additionally, there was no need for complex interconnections when patching the systems.