Optical amplifier for long-haul application

Distances of optical transmission systems can be increased by using optical amplifier. Three different intensifier types (booster, in-line amplifier and pre-amplifier) can be used depending on the required distance and existing locations. All SPEED-AMPLIFIER are capable to parallel transfer up to 40 DWDM wavelengths via a single pair of fibers. Each wavelength supports miscellaneous protocols like SDH, ATM and Ethernet providing diverse bandwidths (10Mbps – 40Gbps). The amplifier can be monitored and configured locally via CLI (Telnet) or through SNMP and Web GUI by using the optionally available management module. Even a remote management can be provided by an in-band OSC channel. All optical SPEED-amplifier meet the requirements of the laser safety class 1M. The modules are installed in space-saving housing types (SPEED-CARRIER 4.5U and SPEED-CARRIER 1U/B). Up to 170km can be accomplished in a point-to-point connection by using a booster at the beginning of the line.

By the additional use of a pre-amplifier at the end of a transmission link the achievable distance of the entire system can be increased up to 200km. In the event that signals with 1Gbps bandwidth are transmitted, up to 250km distance can be achieved.

If the availability exists to install one or more in-line amplifier at a repeater site, the DWDM signal can be intensified with additional 23dBm power budget. Using one repeater site, a distance up to 400km can be realized whereas this can be further extended if more repeater sites are used.

All three types of amplifier are already designed to support 40Gbps bandwidths for realizing up to 1,000km in a point-to-point connection. For this purpose multiple repeater sites and a Forward-Error-Correction (FEC) integrated in the used optics are required. 

Technical Data