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Proceedings Paper

Densely packed NxN wavelength cross-connect switch module
Author(s): Hisato Uetsuka; Masao Tachikura; Hitoshi Kawashima; Kazuhiko Ikeda; Keisuke Sorimoto; Hiroyuki Tsuda; Keiichi Sasaki; Yuto Yamashita
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Paper Abstract

A wavelength cross-connect switch (WXC) is proposed and demonstrated. The cross-connect optics have orthogonal imaging systems that operate differently in the switching and spectral planes. The switching plane has 2f Fourier optics with a Rayleigh length. On the other hand, the spectral plane has 4f imaging optics. Two types of switching engines, microelectromechanical system (MEMS) mirrors and liquid crystal on silicon (LCOS), are applied for the same cross-connect optics. The 5×5 WXC with MEMS mirrors has a 100 GHz channel spacing, which is compatible with the International Telecommunication Union (ITU) grid. On the other hand, the WXC with LCOS has a variable channel spacing. The characteristics of two types of WXC are compared. In addition, the port count, which is one of the important parameters, is discussed.

Paper Details

Date Published: 7 February 2015
PDF: 7 pages
Proc. SPIE 9389, Next-Generation Optical Communication: Components, Sub-Systems, and Systems IV, 93890C (7 February 2015); doi: 10.1117/12.2078608
Show Author Affiliations
Hisato Uetsuka, National Institute of Advanced Industrial Science and Technology (Japan)
Masao Tachikura, National Institute of Advanced Industrial Science and Technology (Japan)
Hitoshi Kawashima, National Institute of Advanced Industrial Science and Technology (Japan)
Kazuhiko Ikeda, National Institute of Advanced Industrial Science and Technology (Japan)
Keisuke Sorimoto, Keio Univ. (Japan)
Hiroyuki Tsuda, Keio Univ. (Japan)
Keiichi Sasaki, Kitanihon Electric Cable Corp. (Japan)
Yuto Yamashita, Kitanihon Electric Cable Corp. (Japan)


Published in SPIE Proceedings Vol. 9389:
Next-Generation Optical Communication: Components, Sub-Systems, and Systems IV
Guifang Li; Xiang Zhou, Editor(s)

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