Joint Release by Nippon Telegraph and Telephone Corporation (NTT) and Hokkaido University.

Nippon Telegraph and Telephone Corporation (NTT, Chiyoda-ku, Tokyo; President and CEO: Akira Shimada) and Hokkaido University (Kita-ku, Hokkaido; President: Kiyohiro Houkin) have succeeded in realizing a compact optical device which enables low loss, wideband and variable compensation of optical power difference between different kinds of signals (modes) for the first time in the world.

The original release from NTT can be found at this link, and may be also be downloaded as a PDF.