Title :
Optical fiber up-tapers modeling and performance analysis
Author :
Amitay, N. ; Presby, H.M.
Author_Institution :
AT&T Bell Lab., Holmdel, NJ, USA
Abstract :
An extensive CRAY-computer-based simulator using the propagating beam method for the accurate evaluation of the performance of optical fiber up-tapers is discussed. Up-tapers with and without straight tips and with arbitrary index profiles and tapering functions can be evaluated. Results of the evaluation of various 1.5-cm-long optical up-tapers followed by a straight tip and drawn from special preforms with various index profiles are quite encouraging. They show that beam expansion ratios in the range of 5-10 are feasible with a corresponding insertion loss per taper of less than 0.01-0.025 dB. Tapers shorter than 1.5 cm with insertion loss in the same range are also feasible but have slightly smaller beam expansion ratios.<>
Keywords :
digital simulation; optical fibres; optical losses; physics computing; 0.01 to 0.025 dB; 1.5 cm; CRAY-computer-based simulator; beam expansion ratios; insertion loss; optical fiber up-tapers; propagating beam method; Computer simulation; Equations; Insertion loss; Optical beams; Optical coupling; Optical fiber losses; Optical fibers; Optical losses; Optical propagation; Performance analysis;
Journal_Title :
Lightwave Technology, Journal of
