[8a-Z16-1~10] 3.14 Optical control devices and optical fibers

▲ [8a-Z16-7] Vertical Field Enhancement of Spot Size Converter by Using Nano-Pixel Waveguide and Window Structure

〇(D)ZANHUI CHEN¹, Wenying Li¹, Yu Han¹, Leiyun Wang¹, Haisong Jiang¹, Kiichi Hamamoto¹ (1.I-EggS (Interdisciplinary Graduate School of Engineering Sciences), Kyushu University.)

Keywords:Vertical field confinement, Spot size converter, Nano-pixels waveguide, Window structure

Spot size converter by using nano-pixels waveguide is proposed especially, to enhance the vertical, not only the lateral, field confinement. Theoretical analysis shows a coupling efficiency of -0.4 dB at λ₀=1.572 μm by combining the design SSC of a nano-pixels waveguide of 30 nano-pixels (1×2 μm²) and SiO₂ window structure.