Compact and Economical MMI Optical Power Splitter for Optical Communication

• 作 者: 马慧莲 杨建义 江晓清 王明华
• 出 处: 半导体学报
• 发表日期: 2000年10期
• 关键词: splitter etching bringing plenty networking topology Figure contrary insensitive

A 1×8 GaAs/GaAlAs optical power splitter based on a MultiMode Interference (MMI) coupler is presented. The input and output single mode waveguides are optimized by the Discrete Spectral Index Method (DSIM) and a moderate square spot on the output in deep etched rib waveguides is obtained. The fabrication tolerance has been analyzed by the Finite Difference Beam Propagation Method (FDBPM). The device was fabricated by the dry etching technique and the near field output obtained. The device shows polarization insensitive, large fabrication tolerance, low theoretical excess loss and low power imbalance.

A 1 × 8 GaAs / GaAlAs optical power splitter based on a MultiMode Interference (MMI) coupler is presented. The input and output single mode waveguides are optimized by the Discrete Spectral Index Method (DSIM) and a moderate square spot on the output in deep The fabrication tolerance has been analyzed by the Finite Difference Beam Propagation Method (FDBPM). The device was fabricated by the dry etching technique and the near field output obtained. The device shows polarization insensitive, large fabrication tolerance, low theoretical excess loss and low power imbalance.