WDM’s Bright Future for FTTx Deployments

Wavelength Division Multiplexing (WDM) is accelerating in importance as an essential ingredient technology for fiber optic communications. It’s well-known that passive optical networks have become the dominant technology for FTTx deployments due to significant advantages over active networks in terms of initial and ongoing cost structure. Existing PON access network standards use WDM to support bidirectional traffic over a single fiber using three wavelengths.

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