F-tone Networks's Super 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.
Features
- Fully independent rack-mountable 1RU, network-ready, SNMP support
- Co- and counter-propagating configurations
- Eye safety - Class 1M
- Automatic shut-down and restart
Applications
- Distributed Raman Amplification
- OSNR improvement
- Long span masking
- Long repeaterless links
- 40 Gb/s, 100 Gb/s, and/or 80+ channels systems
Specifications
Parameter | Specifications | Remarks |
| | Min. | Max. | Units | |
Wavelength Range | 1529 | 1565 | nm | |
Wavelength Range, OSC | 1500 | 1520 | nm | |
Input Power Range | -40 | +5 | dBm | At line port with Raman off |
Input Power Range, OSC | -50 | -10 | dBm | At line port with Raman off |
Maximum Pump Power | | 500 850 | mW | Typical for 2 pumps Typical for 3 pumps |
Average Gain (G.652 fiber) | | 12 18 | dB | 2 pumps 3 pumps |
| Gain Setting Accuracy in AGC Mode | | +/-0.7 | dB | |
Gain Flatness | | 0.9 1.2 <0.5 | dB | 2 pumps 3 pumps With GFF |
Signal Insertion Loss | | 1.8 | dB | |
OSC Insertion Loss | | 1.8 | dB | |
Noise Figure | | -1 | dB | Worst case at typical gain At lower gains NF can reach 0 dB |
PDG, PDL | | 0.3 | dB | For triple pump model For dual pump model PDG <0.6 dB |
PMD | | 0.2 | psec | |
OSC Drop Isolation | 30 | | dB | |
Laser Safety | Class 1M | CDRH 1040.10, IEC 60825-1 |
Monitored Parameters | Pump power, signal power (either co- or counter-propagating),
line back-reflection at 1400-1500 nm bａnd and 1500-1520 nm band, sub modulation on OSC power |
Important Notice
Performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by F-tone Networks before they become applicable to any particular order or contract. In accordance with the F-tone Networks policy of continuous improvement specifications may change without notice.
The publication of information in this data sheet does not imply freedom from patent or other protective rights of F-tone Networks or others. Further details are available from any F-tone Networks sales representative.
