Electro-optical flat-top bandpass Solc-type filter in periodically poled lithium niobate.
We propose a flat-top bandpass Solc-type filter in a periodically poled lithium niobate crystal. Our study reveals several critical electric fields at which the transmission spectrum surprisingly evolves into a flat-top one, which is a new method for obtaining a flat-top wavelength filter. Because the flat-top passband width can be controlled by the applied electric field, it shows a potential application in optical networks and ultrafast optical signal processing.
Liu
Kun
K
Institute of Optics and Photonics, Department of Physics, The State Key Laboratory on Fiber Optic Local Area Communication Network and Advanced Optical Communication Systems, Shanghai Jiao Tong University, Shanghai, China.
Shi
Jianhong
J
Chen
Xianfeng
X