Phase error compensation for multilayered AWG in LCOS-based WSS

IEICE Electronics Express

Keisuke Sorimoto³  Hitoshi Kawashima¹  Kenji Kintaka¹  Hiroyuki Tsuda³  Hisato Uetsuka²  Hiroshi Ishikawa¹  Masahiko Mori¹  Toshifumi Hasama¹ 

[1] National Institute of Advanced Industrial Science and Technology (AIST);Hitachi Cable, Ltd.;Graduate School of Science and Technology, Keio University

关键词: wavelength selective switch;    liquid crystal on silicon;    arrayed waveguide grating;    multilayered waveguide;    phase error compensation;   

DOI  :  10.1587/elex.8.2054

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(6)Cited-By(2)We propose a novel method to compensate for the phase errors of a multilayered arrayed waveguide grating (AWG) used in a liquid-crystal-on-silicon (LCOS)-based wavelength selective switch (WSS). In this scheme, an additional LCOS is employed to externally compensate for the phase errors of the AWG in a layer-by-layer manner for both planes of polarization. This compensation scheme enables us to improve the yield of the WSS: specifically, we demonstrate that the additional LCOS drastically reduces the loss and polarization-dependent loss (PDL) of the WSS.

【 授权许可】

Unknown