Uni-directional CWDM amplifier: installation example
How it works
CWDM transmission enables low-cost WDM transmission using uncooled laser diodes. Typically the transmission distance is limited up to 70km, and one reason is the lack of appropreate optical amplifiers in the S-band (i.e. 1471, 1491, 1511nm CWDM channel).
FiberLabs owns S-band amplification technology enabled by in-house fluoride fiber. It allows us to produce a fiber amplifier working from 1471nm to 1611nm. Below is a schematic of how our CWDM amplifier is used in the uni-directional configuration. The link budget is increased by 10 dB by the addtion of the booster amplifier, extending the maximum transmission distance up to 130 km.
