[J3] Photonic Integration Circuits III

[J3-1] Ultra-Compact Multi-Level Optical Switching with Non-Volatile GST Phase Change

Invited

〇Linjie Zhou¹, Hanyu Zhang¹, Liangjun Lu¹, Jianping Chen¹, Zhiping Zhou², B. M. A. Rahman³ (¹Shanghai Jiao Tong Univ., China, ²Peking Univ., China, ³City, Univ. of London, UK)

Keywords:Novel Materials and Structures, Photonic Integration, Optoelectronic and all-optical switches

We demonstrate a miniature multi-level optical switch element based on a 1×1 multimode interferometer (MMI) loaded with a 0.5-µm-long Ge₂Sb₂Te₅ strip. Six-level dynamic switching is successfully demonstrated with a maximum transmission change of 150%.