%0 Journal Article %T Densely packed NxN wavelength cross-connect switch module %A Uetsuka, Hisato %A Tachikura, Masao %A Kawashima, Hitoshi %A Ikeda, Kazuhiko %A Sorimoto, Keisuke %A Tsuda, Hiroyuki %A Sasaki, Keiichi %A Yamashita, Yuto %J Proceedings of SPIE %V 9389 %P 93890C-93890C-7 %@ 0277-786X %D 2015-01-15 %I SPIE %~ DeepDyve