Optical Units
Combination of Raman and erbium-doped fiber amplifier in one case
The use of ROPAs makes it possible to increase the distance between two network nodes
Series of erbium amplifiers (EA) up to 1 W for building extended communication lines in the C-band (1529 – 1561 nm)
Series of Raman amplifiers (RA) up to 1 W for building extended communication lines in the C-band (1529 – 1561 nm)
Channel aggregation and amplification in one unit
Variable optical multiplexer and demultiplexer
Control of attenuation, determination of the type and in the distance to the inhomogeneities of the refractive index of the optical fiber
Measurements of the spectra in DWDM systems
Versatile add/drop of lightpath channels for the network upgrade and protection
Multi-degree C-F/ CD-F ROADM nodes