MXene-based high-performance all-optical modulators for actively Q-switched pulse generation 
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1 International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
2 School of Electronic and Information Engineering, Beihang University, Beijing 100191, China
3 Beijing Advanced Innovation Center for Big Data-based Precision Medicine, Beihang University, Beijing 100083, China
Abstract
-switched fiber lasers are integral tools in science, industry, and medicine due to their advantages of flexibility, compactness, and reliability. All-optical strategies to generate ultrashort pulses have obtained considerable attention as they can modulate the intracavity factors without employing costly and complex electrically driven devices. Here, we propose a high-performance all-optical modulator for actively -switched pulse generation based on a microfiber knot resonator deposited with MXene. Experimental results show that the obtained -switching pulses exhibit a wide adjustment range of repetition rate from 1 kHz to 20 kHz, a high signal-to-background contrast ratio of , and a narrow pulse width of 8.82 μs, indicating great potentials of providing a simple and viable solution in photonic applications.
Qing Wu, Yunzheng Wang, Weichun Huang, Cong Wang, Zheng Zheng, Meng Zhang, Han Zhang. MXene-based high-performance all-optical modulators for actively Q-switched pulse generation[J]. Photonics Research, 2020, 8(7): 07001140.
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