NTT and NEC have developed an optical node system with wavelength adapter function, which is necessary for expanding the application area of ​​the IOWN All-Photonics Network (APN). They have also demonstrated that this optical node system is capable of long-distance transmission while performing multiple wavelength conversions. In the future, they plan to realize an optical transmission system with this wavelength adapter function as an APN device.
NTT has been researching and developing the optical node system “PhotonicExchange” that constitutes the APN. In order to efficiently provide long-distance end-to-end optical paths, PhotonicExchange needs to have both the wavelength adapter function, which converts and adapts the wavelength of the optical path to the desired wavelength, and the ability to ensure transmission performance.
NEC has been researching and developing optical-electrical analog-optical (OAO) wavelength conversion technology that can convert the wavelength of each optical path to any other wavelength.
This time, we utilized OAO-type wavelength conversion technology in PhotonicExchange to experimentally demonstrate the wavelength adapter function.

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