Zobrazeno 1 - 10
of 233
pro vyhledávání: '"Shangjian Zhang"'
Autor:
Huan Tian, Junwen Li, Weiqiang Lyu, Lingjie Zhang, Zhen Zeng, Yaowen Zhang, Zhiyao Zhang, Shangjian Zhang, Heping Li, Yong Liu
Publikováno v:
APL Photonics, Vol 9, Iss 7, Pp 076115-076115-12 (2024)
Optoelectronic oscillators (OEOs), which have attracted extensive studies in the past decades, are high quality-factor optoelectronic feedback loops for generating various ultra-pure microwave signals. In essence, OEOs are also dissipative nonlinear
Externí odkaz:
https://doaj.org/article/071e87bc04c14b25b03a553b6069fddf
Autor:
Junfeng Zhu, Xinhai Zou, Ying Xu, Yutong He, Yali Zhang, Zhiyao Zhang, Shangjian Zhang, Yong Liu
Publikováno v:
Photonic Sensors, Vol 13, Iss 2, Pp 1-7 (2023)
Abstract A bias-independent inter-modulation method is proposed and demonstrated for measuring low-frequency modulation and bias half-wave voltages of Mach-Zehnder modulators (MZMs). The method consists of simultaneous sinusoidal modulation on the mo
Externí odkaz:
https://doaj.org/article/a30a3ef526fd4e43aa6a8e48e3e55354
Publikováno v:
Results in Physics, Vol 49, Iss , Pp 106503- (2023)
Soliton explosions are among the most striking soliton phenomena in nonlinear dissipative systems. In this regime, quasi-stable solitons suffer abrupt structural collapses and then recover to their original state. Here, we report on the first experim
Externí odkaz:
https://doaj.org/article/0b7c47614f2a4f3da50913853b45592f
Autor:
Zhengkai Li, Yangxue Ma, Ying Xu, Yutong He, Weiqiang Lyu, Zhenwei Fu, Zhiyao Zhang, Shangjian Zhang, Heping Li, Yong Liu
Publikováno v:
IEEE Photonics Journal, Vol 14, Iss 3, Pp 1-8 (2022)
The influence of the residual pulse chirp and the spectrum shape from a cavity-less optical pulse source on the sampling performance is theoretically analyzed. According to the theoretical analysis, an optimization method for enlarging the operation
Externí odkaz:
https://doaj.org/article/76361057dc8f4ba3a098736f1dde68a4
Autor:
Lingjie Zhang, Zhen Zeng, Yaowen Zhang, Zhiyao Zhang, Bao Sun, Shangjian Zhang, Yali Zhang, Yong Liu
Publikováno v:
IEEE Photonics Journal, Vol 12, Iss 4, Pp 1-11 (2020)
A photonics-assisted dual-chirp microwave signal generation scheme is proposed based on electro-optic modulation and heterodyne detection. The dual-chirp microwave signal is generated by heterodyne beating between a dual-chirp optical waveform and a
Externí odkaz:
https://doaj.org/article/96f6a942ae1a4d35983107a3364b90ec
Autor:
Lingjie Zhang, Zhen Zeng, Yaowen Zhang, Zhiyao Zhang, Shangjian Zhang, Guangming Ni, Yong Liu
Publikováno v:
IEEE Photonics Journal, Vol 12, Iss 3, Pp 1-10 (2020)
A Fourier domain mode locking (FDML) optoelectronic oscillator (OEO) based on stimulated Brillouin scattering (SBS) is proposed to generate complementary linearly chirped microwave waveform (LCMW) pairs with flexibly-reconfigurable frequency sweep ra
Externí odkaz:
https://doaj.org/article/c4dc793d19b24fed8f0671465c9aafbf
Autor:
Zhao Liu, Le Qiu, Lan Zhao, Lijun Luo, Wenhao Du, Lingjie Zhang, Bao Sun, Zhiyao Zhang, Shangjian Zhang, Yong Liu
Publikováno v:
Applied Sciences, Vol 13, Iss 2, p 873 (2023)
A three-dimensional (3D) electric field sensing scheme is proposed and experimentally demonstrated based on an integrated lithium niobate on insulator (LNOI) platform. The 3D measurement is realized by packing three LNOI-based sensor chips in a trian
Externí odkaz:
https://doaj.org/article/6e48bdfb15a54f2599dbcb246216457c
Autor:
Zhao Liu, Wenhao Du, Lan Zhao, Lijun Luo, Le Qiu, Lingjie Zhang, Bao Sun, Shangjian Zhang, Yong Liu
Publikováno v:
Photonics, Vol 9, Iss 12, p 918 (2022)
Electromagnetic spectrum sensing is quite important for communication safety in commercial wireless communication, as well as for the equipment paralysis of rivals and self-protection in modern warfare. Specifically, a passive electric field sensor f
Externí odkaz:
https://doaj.org/article/03e28992c15448d6991a08cd46d154cf
Autor:
Jian Li, Ying Xu, Xinhai Zou, Junfeng Zhu, Zhongtao Ruan, Yali Zhang, Zhiyao Zhang, Shangjian Zhang, Yong Liu
Publikováno v:
Photonics, Vol 9, Iss 11, p 878 (2022)
Optical spectrum analysis is the most direct and effective method for characterizing electro-optic modulation spectra. According to the Rayleigh criterion, the best resolution of an optical spectrum analysis is limited by the point spread function of
Externí odkaz:
https://doaj.org/article/da182638c7c14032a5c82b88ea89abe7
Autor:
Weiqiang Lyu, Zhengkai Li, Lingjie Zhang, Huan Tian, Zhenwei Fu, Zhiyao Zhang, Bao Sun, Yali Zhang, Shangjian Zhang, Heping Li, Yong Liu
Publikováno v:
Photonics, Vol 9, Iss 11, p 831 (2022)
A new non-uniform photonic sampling (NPS) strategy and its special signal reconstruction algorithm are proposed to achieve digital acquisition of broadband periodic signals at a low sampling rate. Compared with the existing schemes, the NPS strategy
Externí odkaz:
https://doaj.org/article/5864816a39034bb9ba8b6d50908879c3