A fundamental Y branch based on a flexible photonic crystal waveguide is presented. By combining this fundamental Y branch with flexible waveguides, flexible waveguide branches with arbitrary branching angles are constructed. Numerical simulations of these branches indicate that without any structural optimization, near-complete transmission is observed within a wide frequency band. Owing to their unique flexibility, these waveguide branches are expected to be applied to high-density photonic integrated circuits after further research.
© 2009 Optical Society of America
Original Manuscript: January 13, 2009
Revised Manuscript: May 15, 2009
Manuscript Accepted: May 26, 2009
Published: June 22, 2009
Bing Chen, Tiantong Tang, and Hao Chen, "Flexible photonic crystal waveguide branches with arbitrary branching angles," Opt. Lett. 34, 1952-1954 (2009)