Abstract
We propose a novel photonic crystal fiber (PCF) design with high birefringence and low confinement loss based on a diamond unit cell. Unit cell is a degree of freedom of PCF design, and highly asymmetric diamond unit cell can deliver both high birefringence and low confinement loss. In our fiber design, each diamond unit cell consists of two different sizes of circular air holes in a conventional hexagonal lattice, which can enhance the confinement loss with increased birefringence and can overcome the previous fabrication challenges of elliptic air hole PCFs due to the all-circular air hole structure. The optimized design shows high birefringence of over S, C, and L bands while maintaining low confinement loss.
© 2015 Optical Society of America
Full Article | PDF ArticleMore Like This
Yuh-Sien Sun, Yuan-Fong Chau, Han-Hsuan Yeh, Lin-Fang Shen, Tzong-Jer Yang, and Din Ping Tsai
Appl. Opt. 46(22) 5276-5281 (2007)
Daru Chen and Genzhu Wu
Appl. Opt. 49(9) 1682-1686 (2010)
Tianyu Yang, Erlei Wang, Haiming Jiang, Zhijia Hu, and Kang Xie
Opt. Express 23(7) 8329-8337 (2015)