@article{oai:nagoya.repo.nii.ac.jp:00018652,
 author = {Niwa, Tomonobu and Hasegawa, Hiroshi and Sato, Ken-ichi and Watanabe, Toshio and Takahashi, Hiroshi and Okuno, Masayuki},
 issue = {16},
 journal = {IEICE Electronics Express},
 month = {Aug},
 note = {We demonstrate a Colorless, Directionless, and Contentionless add/drop that is made possible by newly proposed multi-stage tunable filters; it will be effective in the creation of flexible and dynamic optical path networks. The filters consist of small-scale switches and AWGs (Arrayed Waveguide Gratings) and so are cost effective. The technical feasibility of the drop configuration using proposed tunable filters is experimentally verified.},
 pages = {1297--1303},
 title = {Novel wavelength tunable filter offering multi-stage selection for colorless, directionless, and contentionless ROADMs},
 volume = {9},
 year = {2012}
}