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Aug 23, 2024 | 
opg.optica.org | Yu Yang |Juhao Li |Zhangyuan Chen |Yunbo Li |Gang Qiao
The understanding of nonlinear propagation effects in low-crosstalk few-mode fiber is crucial for a weakly coupled mode-division multiplexed system. In this Letter, we report the first, to the best of our knowledge, experimental verification of the advantage of intramodal dispersion on mitigating intramodal cross-phase modulation in a weakly coupled few-mode fiber transmission.
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Aug 6, 2024 | 
opg.optica.org | Xiaopeng Xie |Peng Lei |Zhangyuan Chen |Mingyu Xu
Stimulated Brillouin scattering (SBS) is a nonlinear optical phenomenon mediated from the coupling of photons and phonons. It has found applications in various realms, yet the acousto-optic interaction strength remains relatively weak. Enhancing the SBS with resonant structures could be a promising solution, but this method faces strict constraints in operational bandwidth.
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Apr 12, 2024 | 
opg.optica.org | Xiaopeng Xie |Peng Lei |Zhangyuan Chen |Mingyu Xu
Advancements in photonic integration technology have enabled the effective excitation of simulated Brillouin scattering (SBS) on a single chip, boosting Brillouin-based applications such as microwave photonic signal processing, narrow-linewidth lasers, and optical sensing. However, on-chip circuits still require large pump power and centimeter-scale waveguide length to achieve a considerable Brillouin gain, making them both power-inefficient and challenging for integration.
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Mar 19, 2024 | 
mdpi.com | Yuyang Gao |Jian Cui |Xian Zhou |Zhangyuan Chen
All articles published by MDPI are made immediately available worldwide under an open access license. No specialpermission is required to reuse all or part of the article published by MDPI, including figures and tables. Forarticles published under an open access Creative Common CC BY license, any part of the article may be reused withoutpermission provided that the original article is clearly cited. For more information, please refer tohttps://www.mdpi.com/openaccess.
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Mar 5, 2024 | 
opg.optica.org | Xiaopeng Xie |Peng Lei |Zhangyuan Chen |Mingyu Xu
The acousto-optic interaction known as stimulated Brillouin scattering (SBS) has emerged as a fundamental principle for realizing crucial components and functionalities in integrated photonics. However, the main challenge of integrating Brillouin devices is how to effectively confine both optical and acoustic waves. Apart from that, the manufacturing processes for these devices need to be compatible with standard fabrication platforms and streamlined to facilitate their large-scale integration.
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Feb 29, 2024 | 
mdpi.com | Haipeng Guo |Chuanchuan Yang |Zhangyuan Chen |Hongbin Li
All articles published by MDPI are made immediately available worldwide under an open access license. No specialpermission is required to reuse all or part of the article published by MDPI, including figures and tables. Forarticles published under an open access Creative Common CC BY license, any part of the article may be reused withoutpermission provided that the original article is clearly cited. For more information, please refer tohttps://www.mdpi.com/openaccess.
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Jan 31, 2024 | 
opg.optica.org | Xiaopeng Xie |Chenbo Zhang |Zhangyuan Chen |Jingjing Lin
Microwave signals can be generated by photodetecting the repetition frequencies of the soliton microcombs. In comparison to other methods, the dual-pumped method allows for the stable generation of the soliton microcombs even with resonators having lower Q-factors. However, introducing an additional pump laser may affect the phase noise of the generated microwave signals when using these dual-pumped soliton microcombs.
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Jan 29, 2024 | 
opg.optica.org | Xiansong Fang |Chuanchuan Yang |fan zhang |Zhangyuan Chen
Inter-channel nonlinearity compensation plays a crucial role in wavelength division multiplexing (WDM) systems for improving transmission capacity and distance. In this work, we propose a novel, to the best of our knowledge, inter-channel nonlinearity compensation method called generalized Rayleigh quotient optimization (GRQO) method with two different working modes.
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Jun 30, 2023 | 
opg.optica.org | Jinming Tao |Xiaopeng Xie |Chenbo Zhang |Zhangyuan Chen
AbstractFrequency-modulated continuous wave (FMCW) light detection and ranging (lidar) is a promising solution for three-dimensional (3D) imaging and autonomous driving. This technique maps range and velocity measurement to frequency counting via coherent detection. Compared with single-channel FMCW lidar, multi-channel FMCW lidar can greatly improve the measurement rate.
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Mar 2, 2023 | 
opg.optica.org | Yunbo Li |Gang Qiao |Zhangyuan Chen |Mingqing Zuo
AbstractWith the increasing signal rates of a long-haul backbone dense-wavelength-division-multiplexing (DWDM) transmission system, e.g., from 100 Gb/s to 400 Gb/s and even to 800 Gb/s, optical path impairments simultaneously become more severe. Harmful factors being formerly insignificant become noticeable, e.g., nonlinear phase noise (NPN) on main DWDM channels induced by the cross-phase modulation (XPM) from the low-speed optical supervisory channel (OSC).
