Cisco 15454-TDC-CC-RF wave division multiplexer

Tunability in DWDM has been a key requirement for the technology’s maturity over the years from the introduction of tunable lasers, broadband receivers, and variable gain amplifiers. The Cisco® ONS 15454 MSTP now extends DWDM tunability to the dispersion compensator with its Tunable Dispersion Compensation Unit (see Figure 1). The Cisco ONS 15454 Tunable Dispersion Compensation line card uses fiber as the underlying technology to achieve tunability, which allows it to be unlocked from a specific 100/50 GHz grid like fiber bigrating and etalon technologies require. This helps service providers avoid future modifications to their DWDM networks to accommodate new wavelength modulation schemes that don’t fit into fiber bigrating or etalon spectral widths.