Chinese Optics Letters, 2005, 3 (1): 0121, Published Online: Jun. 6, 2006
Characteristics of an add-drop filter composed of a Mach-Zehnder interferometer and double ring resonators
Abstract
A planar lightwave circuit (PLC) add-drop filter is proposed and analyzed, which consists of a symmetric Mach-Zehnder interferometer (MZI) combined with double microring resonators. A critical coupling condition is derived for a better box-like drop spectrum. Comparisons of its characteristics with other schemes, such as a MZI with a single ring resonator, arepresented, and some of the issues about device design and fabrication are also discussed.
Fufei Pang, Xiuyou Han, Haiwen Cai, Ronghui Qu, Zujie Fang. Characteristics of an add-drop filter composed of a Mach-Zehnder interferometer and double ring resonators[J]. Chinese Optics Letters, 2005, 3(1): 0121.