We examine the waveguide dimension and refractive-index difference space for the optimization of single-mode channel waveguide pigtails and optical fiber splices, and we explain these results using modal analysis. We present closed-form equations for the evaluation of the optimal index difference and the allowable variation in its value in any material. We provide a novel way of viewing common waveguide physical parameters and translating them into information that determines the efficacy of a fiber connection.
© 1998 Optical Society of America
Louay Eldada and James T. Yardley, "Modal Analysis for Optimization of Single-Mode Waveguide Pigtailing and Fiber Splicing," Appl. Opt. 37, 7747-7751 (1998)