1. Centre for Ultrahigh Bandwidth Devices for Optical Systems Laser Physics Centre Research School of Physics and Engineering The Australian National University Canberra ACT 2601 Australia
2. Laboratory of Micro/Nano Optoelectronics Department of Electronic Engineering Xiamen University Xiamen 361005 Fujian China
3. Nonlinear Physics Centre, Research School of Physics and Engineering The Australian National University Canberra ACT 2601 Australia