Author_Institution :
State Key Lab. on Integrated Optoelectron., Inst. of Semicond., Beijing, China
Abstract :
In this paper, a three-branch structure with different output widths, broadening, and transition waveguide are discussed in detail. Based on the three-branch structure, a compact, low-loss, and good uniformity 1 × 24 optical power splitter is designed and fabricated using silica-based PLC technology on quartz substrate. The measurement results show that the insertion loss, the uniformity, wavelength-dependence loss of the splitter are less than 14.8, 0.92, and 0.93 dB, respectively, in the wavelength range from 1.25 to 1.65 μm. The polarization dependence loss is less than 0.16 dB in the wavelength of 1.27, 1.31, 1.49, 1.55, and 1.625 μm.
Keywords :
light polarisation; optical beam splitters; optical design techniques; optical fabrication; optical losses; optical waveguides; SiO2; compact symmetric low-loss optical power splitter; insertion loss; output width; polarization dependence loss; quartz substrate; silica-based PLC technology; three-branch structure; transition waveguide; wavelength 1.25 mum to 1.65 mum; wavelength-dependence loss; Insertion loss; Optical device fabrication; Optical fibers; Optical losses; Waveguide transitions; Optical waveguides; silica-based; three-branch;
