Design of compact bi-directional triplexer based on silicon nanowire waveguides

• 作 者: 凌伟 盛振 仇超 李浩 武爱民 王曦 邹世昌 甘甫烷
• 机 构: tate Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and I
• 出 处: Chinese Optics Letters
• 发表日期: 2013年04期
• 关键词: directional grating coupler bandwidth Bragg footprint satisfy photonic refractiv

A compact bi-directional (BiDi) triplexer using grating-assisted multimode interference (MMI) coupler is proposed based on silicon nanowire waveguides.Because of the high index contrast between silicon and silicon dioxide, the size of the structure is greatly reduced with a footprint of 2.5×911 (μm). Asymmetrical ports are introduced in the MMI structure to satisfy the bandwidth requirements of the industrial standards ITU-T G.983.3-dB bandwidths of 100, 22, and 15 nm are obtained for the wavelengths of 1 310, 1 490, and 1 550 nm, respectively. The device can be readily fabricated using a commercial CMOS process.

A compact bi-directional (BiDi) triplexer using grating-assisted multimode interference (MMI) coupler is proposed based on silicon nanowire waveguides. Since the high index contrast between silicon and silicon dioxide, the size of the structure is greatly reduced with a footprint of 2.5 × 911 (μm) Asymmetrical ports are introduced in the MMI structure to satisfy the bandwidth requirements of the industrial standards ITU-T G.983.3-dB bandwidths of 100, 22, and 15 nm are obtained for the wavelengths of 310 , 1 490, and 1 550 nm, respectively. The device can be fabricated fabricated using a commercial CMOS process.