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Quantum State Preparation for Quantum Key Distribution Using PLC Module
Dan Wu;Shaokang Chen;Pengwei Cui;Junchi Ma;Wei Chen;Jiashun Zhang;Yue Wang;Jianguang Li;Junming An
Quantum Key Distribution (QKD) is gaining significant interest due to its theoretical guarantee of unconditional security. Integrated optics offers distinct advantages compared to bulk optics, including high stability, flexibility, controllability, and robustness. We develop a planar lightwave circuit (PLC) silica asymmetric Mach-Zehnder interferometer (AMZI) module with temperature system at an a...Show More
Ultra-Compact Low-Loss Modified N-Adjustable Bends
Lichao Zhang;Kaifeng Wang;Jiamin Chen;Tianjun Ma;Wangzhe Li;Junming An;Guangyang Gou;Chunxiu Liu;Jianqun Cheng;Zhimei Qi;Ning Xue
Journal of Lightwave Technology
Cited by: Papers (7)
The integration density of photonic integrated circuits (PICs) is significantly limited by the waveguide bend losses. Reducing waveguide losses by design of the geometry of waveguide bends is important for photonic integrated circuits. Currently, circular bend and Euler bend are the two most common bends used in bending waveguide designs. A modified n-adjustable bend is proposed for ultra-small ra...Show More
Low Loss 16-Channel Photodetector Array Receiving Module With Fine Tuning Ability
Wenyu Wang;Zeping Zhao;Xueyan Han;Yuehui Wang;Junming An;Jianguo Liu
A 16-channel photodetector array receiving module with good performance as low loss, fine tuning and high reliability is manufactured in our laboratory. The whole module was consisted with a silica arrayed waveguide grating chip (AWG), a thermo-optical type variable optical attenuator (VOA), a photodetectors (PDs) array with direct-current (DC) bias circuit, all components were integrated via 3D p...Show More
Practical Quantum Key Distribution Module Based on Planar Lightwave Circuit
Jin You;Yue Wang;Pengwei Cui;Qinghai Liu;Dan Wu;Shaoyang Li;Jiashun Zhang;Junming An;Qin Han
IEEE Photonics Technology Letters
Cited by: Papers (2)
Many improvements are required to bring quantum key distribution (QKD) from the laboratory to the commercial market, such as simplifying structure and enhancing stability. In this letter, a QKD module based on planar lightwave circuit (PLC) has been proposed. The chip inside module is based on silica-silicon material and composed of various optical splitter, asymmetric Mach–Zehnder interferometer ...Show More
Design and Fabrication of Novel Symmetric Low-Loss 1 × 24 Optical Power Splitter
Liangliang Wang;Junming An;Yuanda Wu;Jiashun Zhang;Yue Wang;Jianguang Li;Hongjie Wang;Xiaoguang Zhang;Pan Pan;Fe Zhong;Qiang Zha;Xiongwei Hu;Degang Zhao
Journal of Lightwave Technology
Cited by: Papers (11)
In this paper, a three-branch structure with different output widths, broadening, and transition waveguide are discussed in detail. Based on the three-branch structure, a compact, low-loss, and good uniformity 1 × 24 optical power splitter is designed and fabricated using silica-based PLC technology on quartz substrate. The measurement results show that the insertion loss, the uniformity, waveleng...Show More
Light Emission Enhancement From Er-Doped Silicon Photonic Crystal Double-Heterostructure Microcavity
Yue Wang;Jiashun Zhang;Yuanda Wu;Junming An;Jianguang Li;Hongjie Wang;Xiongwei Hu
IEEE Photonics Technology Letters
Cited by: Papers (10)
We experimentally demonstrate efficient light emission enhancement from Si with Er/O co-implanting coupled to 2-D hexagonal photonic crystal (PC) double-heterostructure microcavity fabricated on silicon-on-insulator. A single sharp resonant peak with 1552.2 nm communication wavelength dominates the photoluminescence (PL) spectrum and 35-fold PL intensity enhancement is obtained compared to the cas...Show More
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