EA and RA optical fiber amplifiers
A range of erbium amplifiers (EA) and Raman amplifiers (RA) with a power of up to 2 W to build extended communication lines
- 1,2 and 3 cascaded amplifiers
- Controls transient processes when adding channels
- Low noise figure
- Flat amplifying grid in C-band
- Raman amplifiers with pump power up to 2 W (33 dBm)
- Stabilization modes for an output power and amplification factor
Amplifiers increase the power of optical signals without an optical-to-electrical transduction. Amplifiers with one, two or three amplification stages are available. In multi-stage amplifiers, inter-stage access if provided for connection of dispersion compensators. The use of gain flattening filters (GFFs) guarantees a flat gain grid in С-band. Each amplifier has a built-in tunable attenuator that enables smooth gain adjustment.
Characteristics
| Parameter | RA | EA |
| Spectral range | 1528,7–1567,1 nm | |
| Output power | +33 dBm (RAMAN) | +10...+ 26 dBm |
| Number of amplifying stages | - | 1-3 |
| Number of leveling GFF filters | - | 1-2 |
| Spectral flatness per 10 dB of amplification | - | ≤ 0,5 dB |
| Power adjustment range with an attenuator | 10-20 | 11-18, 14-24, 25-36 |