Amplitude trimming of Si waveguides using phase change material

IEICE Electronics Express

Takumi Moriyama²  Hiroyuki Tsuda²  Ryutaro Eguchi²  Hideaki Asakura²  Ghanshyam Singh¹  Yasuro Shimazaki² 

[1] Malaviya National Institute of Technology Jaipur;Graduate School of Science and Technology, Keio University

关键词: silicon photonics;    after-fabrication trimming;    phase change material;   

DOI  :  10.1587/elex.13.20160107

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(15)A transmission trimming method for Si waveguides using phase change material (PCM) is proposed. We used a 3D-finite difference time domain (3D-FDTD) method to calculate the phase and the loss of light induced by the trimming structures. With five small square patches of PCM on the waveguide, transmission trimming up to 32 levels can be achieved. It was found that the crosstalk of a MZI type optical switch can be reduced when the splitting ratio of the first coupler is corrected using this method.

【 授权许可】

Unknown