To address the demand for low-cost, low-loss, and environmentally friendly optical power dividers in short-range visible light communication (VLC) systems, a low-loss 1 × 2 Y-branch optical splitter based on the integration of a planar optical waveguide (POW) and plastic. To address the demand for low-cost, low-loss, and environmentally friendly optical power dividers in short-range visible light communication (VLC) systems, a low-loss 1 × 2 Y-branch optical splitter based on the integration of a planar optical waveguide (POW) and plastic. To address the demand for low-cost, low-loss, and environmentally friendly optical power dividers in short-range visible light communication (VLC) systems, a low-loss 1 × 2 Y-branch optical splitter based on the integration of a planar optical waveguide (POW) and plastic optical fiber (POF) is. 1Department of Electrical Engineering, Pohang University of Science and Technology, Pohang 37673, Republic of Korea 2Department of Electrical and Computer Engineering, Ajou University, 206 Worldcup-ro, Youngtong-gu, Suwon 16499, Republic of Korea. Abstract: We designed Si-based all-dielectric 1 × 2. What Is a Fiber Optic Splitter 1×2? A fiber optic splitter 1×2 is a passive optical device that takes a single input signal and divides it into two output signals. These splitters are widely used in point-to-multipoint configurations such as Fiber to the Home (FTTH), data centers, and enterprise. A simple technology-compatible design of silicon-on-insulator based 1×2 optical power splitter is proposed. The SOI rib- waveguide dimensions (height, width, and etching depth.