Planar optical waveguides are the key elements in a modern, high-speed optical network. An important problem facing the optical fiber communication system, specifically planar optical waveguides, is coupling. The current study presents a coupling model for planar optical waveguides and optical fibers. The various effects of the optical properties of the coupling interface were analyzed by the scalar finite difference beam propagation method, including the thickness, with or without the matching refractive index of the interface adhesive. The findings can serve as a guide for planar optical waveguide packaging.
Z. Q. Pan, C. Y. Yu and A. E. Willner, “Optical Performance Monitoring for the Next Generation Optical Communication Networks,” Optical Fiber Technology, Vol. 16, No. 1, 2010, pp. 20-45.
G. Z. Xiao, Z. Y. Zhang and C. P. Grover, “Adhesives in the Packaging of Planar Lightwave Circuits,” International Journal of Adhesion and Adhesives, Vol. 24, No. 4, 2004, pp. 313-318. doi:10.1016/j.ijadhadh.2003.11.003
K. W. Cheng, M. A. Uddin, H. P. Chan, et al., “Optical Alignment Tolerances in Double-Side Irradiated Self- Written Waveguide-Induced Fiber Arrays Packages,” Optics Communications, Vol. 283, No. 13, 2010, pp. 2669- 2675. doi:10.1016/j.optcom.2010.02.049
Z. L. Xu and Y. Zheng, “Thermal-Stress Analysis of the Adhesive Bonding between the Planar Optical Wave- guides Based on Finite Element Method,” Acta Photonica Sinica, Vol. 39, No. 4, 2010, pp. 643-647.
N. Takato, K. Jinguji, M. Yasu, et al., “Silica-Based Single-Mode Waveguides on Silicon and Their Application to Guided-Wave Optical Interoferometer,” Journal of Lightwave Technology, Vol. 6, No. 6, 1988, pp. 1003-1010. doi:10.1109/50.4091