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Di Ji, Zhitao Hu, Nan Ye, Fufei Pang and Yingxiong Song
At 2 µm wavelengths (149.9 THz), hollow-core photonics band gap fibers have higher light power damage thresholds, stable polarization states, and lower losses of 0.1 dB/km. Additionally, a thulium-doped fiber amplifier can provide a gain of >35 dB. Speci...
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Jinho Lee and Ju Han Lee
This study reports a Q-switching-based, 2058-nm holmium (Ho) fiber laser incorporating a saturable absorber (SA) based on graphene oxide (GO). The SA was prepared with a side-polished fiber, while GO particles were deposited onto the fiber-polished surfa...
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Tao Xu and Yu-Sheng Lin
We present a tunable terahertz (THz) metamaterial using an electric split-ring resonator (eSRR), which exhibits polarization-sensitive characteristics. The proposed eSRR is composed of double symmetrical semicircles and two central metal bars. By changin...
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Jiayi Zhao, Jingjing Hu, Pengcheng Deng, Runze Yu, Ruoxian Liu, Mingshan Zhao and Yiying Gu
In this paper, a novel approach to achieving a wideband tunable dual-passband microwave photonic filter (MPF) is proposed based on optical-injected distributed feedback (DFB) semiconductor lasers and a dual-output Mach?Zehnder modulator (DOMZM). The fund...
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Fuqiang Yao, Fang Li, Zhicong He, Yahui Liu, Litu Xu and Xiaobo Han
A Fano resonance is experimentally observed in a single silver nanocube separated from a supporting silver film by a thin aluminum oxide film. The resonance spectrum is modulated by changing the size of the silver nanocube and its distance from the silve...
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