Abstract
We present a procedure to generate slow light with a large group index, wideband, and low dispersion in our suggested photonic crystal waveguide. By modulation of the declinations in the first two rows of air holes, the group index, the bandwidth, and the dispersion can be tuned effectively. Utilizing the two-dimensional plane wave expansion method (PWE) and the finite-difference time-domain method (FDTD), we demonstrate slow light with the group indices of 23, 35, and 45, respectively, while restricting the group-index variation within a 10% range. We accordingly attain an available bandwidth of 40.7, 23.7, and 5.1 nm, respectively. Meanwhile, the normalized delay–bandwidth product stays around 0.45, with minimal dispersion less than for all the cases.
© 2012 Optical Society of America
Full Article | PDF ArticleMore Like This
Yameng Xu, Lei Xiang, Eric Cassan, Dingshan Gao, and Xinliang Zhang
Appl. Opt. 52(6) 1155-1160 (2013)
Jian Liang, Li-Yong Ren, Mao-Jin Yun, and Xing-Jun Wang
Appl. Opt. 50(31) G98-G103 (2011)
Bo Liu, Tao Wang, Jian Tang, Xiaoming Li, Chuanbo Dong, and Yu He
Appl. Opt. 52(34) 8394-8401 (2013)