Mid-infrared octave-spanning supercontinuum and frequency comb generation in a suspended germanium-membrane ridge waveguide

Jinhui Yuan, Zhe Kang, Feng Li, Xianting Zhang, Xinzhu Sang, Qiang Wu, Binbin Yan, Kuiru Wang, Xian Zhou, Kangping Zhong, Guiyao Zhou, Chongxiu Yu, Chao Lu, Hwa Yaw Tam, Ping-kong Alexander Wai