Red-C Amps Up for 100G

TEL AVIV -- RED-C Optical Networks Ltd. (RED-C), a leading provider of EDFAs, Raman amplifiers and optical monitoring devices for all optical network applications, today announced the launch of the Hybrid Raman-EDFA module, a key enabling technology for 100/40 Gb/s coherent networks.

The Hybrid module consists of a counter-propagating Raman pump unit tightly integrated with a variable gain EDFA, to provide exceptionally low noise figure and excellent gain flatness, two imperative parameters for ultra-long haul and high bit-rate systems. The unique combination of low NF (1.5-3 dB) and gain flatness (<0.7 dB pk-pk) allows the link reach to be at least doubled in comparison to systems based on traditional EDFAs.

The optimization and tight integration of the Raman pump unit and the variable gain EDFA in a single module allows for improved performance compared to using two separate modules, in addition to the cost and space savings achieved by combining the two units together. Furthermore, the integrated Hybrid control circuitry operates in advanced AGC mode so that the combined Raman and EDFA gain is accurately controlled, including fast transient suppression. This is achieved by measuring the actual Raman gain in real time and adjusting the EDFA gain accordingly.

The module operation and interface are similar to those of a traditional variable gain EDFA, and therefore requires no special system adaptations. The module also incorporates laser safety mechanisms, ensuring that both the Hybrid Raman-EDFA module itself and the network in which it is installed can be classified as Class 1M products with respect to laser safety.

Yossi Boker, RED-C President & CEO commented: “RED-C’s Hybrid Raman-EDFA module is an important milestone in the progress of optical amplifiers. By implementing RED-C’s expertise in both the EDFA and the Raman fields, RED-C has succeeded in launching this unique amplifier which provides excellent performance and ease of integration into next-generation coherent and 100/40 Gb/s systems. The Hybrid Raman-EDFA amplifier further emphasizes RED-C’s commitment to excellence and technology leadership.”

Red-C Optical Networks Ltd.