Curvature analysis of periodically segmented waveguides using a modified BPM

✍ Scribed by Masanori Inoue; Jun-ichi Sakai

• Book ID: 103870735
• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 374 KB
• Volume: 237
• Category: Article
• ISSN: 0030-4018
• DOI: 10.1016/j.optcom.2004.04.007

✦ Synopsis

Periodically segmented waveguides (PSWs) are analyzed using a finite-difference beam propagation method (BPM) combined with a coordinate rotation technique. For the analysis of curved PSW, a new technique is proposed to apply the BPM to a waveguide with large propagation angle such as 40°or more, and the curvature effect is taken into consideration in the analysis. The method is applied to treating two kinds of two-dimensional (2-D) PSW, namely straight and bent waveguides with a fixed curvature. For designing 2-D straight PSW, the propagation dependence on the segment period, duty-cycle, etc. is investigated numerically.