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The O-band transceivers have been extensively used for high-speed Ethernet. The primary reason is that dispersion compensation is much easier in the O-band than in the C-band. These transceivers are produced to meet an industry standard (e.g. IEEE), and some tests require boosting the optical signals. Unlike the C-band, however, fiber amplifiers are not commonly available in the market.

Here we propose one scheme that is useful for transceiver testing, in which PDFA and optical filters are combined.

This technical article describes an application of FiberLabs PDFA for extending the reach of 100GBASE-LR4 transmission.

This technical article describes an application of FiberLabs PDFA for enhancing the link budget of 100GBASE-LR4 transmission. We show that adding a FiberLabs PDFA (AMP-FL5601-OB16) as a booster amplifier

• increases the link budget by more than 10 dB, and
• does not add power penalty.

This article shows an application of O-band optical fiber amplifier (PDFA) for enhancing monitoring capability of 100G Ethernet. It is shown that a PDFA allows for delayless and multiple replications of 100GBASE-LR4 signal for connecting multiple network monitoring appliances, by compensating the branching loss of an optical TAP (Test Access Point) and 1xN splitter.

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.