Optical Amplifiers

UltraSpan 1RU Raman

Finisar's UltraSpan® Raman is a 1RU rack-mountable intelligent amplifier. It can be operated as a fully independent stand-alone network element, and the network-ready hardware and software support SNMP communication protocol.

The UltraSpan Raman is qualified as Class 1M with respect to laser safety. The amplifier incorporates three parallel, nondependent eye safety mechanisms that shut down the amplifier in case of a fiber link disruption, including open connectors (both PC and APC) or broken fiber even at a distance of few tens of kilometers from the unit. This unique and comprehensive safety mechanism is extremely important due to the Raman amplifiers’ high output power.

This amplifier is comprised of an intelligent Raman pump unit containing up to three 14xx nm semiconductor diode pump lasers, and full comprehensive electronic control. The pump unit provides up to 18 dB Raman gain for G.652 fiber (SMF), allowing a repeaterless link to be extended by up to 7 dB. Using patent pending technology, the Raman pump unit can operate in full automatic gain control (AGC) mode, thus allowing the Raman gain to be set with an accuracy of +/-0.7 dB.

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