@article{oai:nagoya.repo.nii.ac.jp:00012148,
 author = {Mitsui, Shin-ichi and Hasegawa, Hiroshi and Sato, Ken-ichi},
 journal = {International Conference on Photonics in Switching, 2009 (PS '09)},
 month = {Sep},
 note = {We propose a novel hierarchical optical cross-connect node architecture that consists of WSSs/WBSSs (waveband selective switch). The proposed architecture reduces the number of WSSs/WBSSs by effectively utilizing star couplers. The large power loss of the couplers is efficiently offset by the novel waveband drop function.},
 pages = {1--2},
 title = {Low loss and cost-effective hierarchical optical path cross-connect switch architecture based on WSS/WBSS},
 year = {2009}
}