Zobrazeno 1 - 10
of 235
pro vyhledávání: '"Mingshan Zhao"'
Publikováno v:
IEEE Photonics Journal, Vol 16, Iss 3, Pp 1-5 (2024)
A novel scheme for generating full-duty-cycle triangular and square pulses based on an optoelectronic oscillator (OEO) is proposed and experimentally demonstrated. The scheme can generate a tuneable fundamental tone corresponding to the repetition ra
Externí odkaz:
https://doaj.org/article/c961e592f818485680239fd1249b73ed
Autor:
Mingxiang Yang, Yunjie Yan, Zhenlin Wu, YiYing Gu, Shiyuan Zhao, Geert Morthier, Mingshan Zhao
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-9 (2023)
Abstract Efficient grating couplers (GCs) for perfectly vertical coupling are difficult to realize due to the second-order back reflection. In this study, apodized GCs (AGCs) are presented for achieving perfectly-vertical coupling to 220 nm thick sil
Externí odkaz:
https://doaj.org/article/b08eb726dcaf4a2094c740f16fea7404
Publikováno v:
IEEE Photonics Journal, Vol 14, Iss 3, Pp 1-9 (2022)
A reconfigurable optical ultra-wideband (UWB) pulse generation scheme based on the pulse difference by using polarization synthesis is proposed and demonstrated experimentally. The Gaussian pulses with an appropriate time delay are modulated via the
Externí odkaz:
https://doaj.org/article/47a053ab3e674521962e5102aeb88c4a
Autor:
Zhenlin Wu, Lin Zhang, Shaoshuai Han, Di Lian, Tongfei Wu, Wenjie Chu, Haoyu Li, Lei Guo, Mingshan Zhao, Xin Yang
Publikováno v:
Applied Sciences, Vol 13, Iss 7, p 4648 (2023)
In recent years, millimeter-wave communication has played a crucial role in satellite communication, 5G, and even 6G applications. The millimeter-wave electro-optic modulator is capable of receiving and processing millimeter-wave signals effectively.
Externí odkaz:
https://doaj.org/article/a711b0e27ee04b4389f9c148ff03221f
Publikováno v:
Photonics, Vol 10, Iss 2, p 176 (2023)
We propose a novel scheme for fabricating high-accuracy optical fiber delay lines (OFDLs). The fabrication system integrates a self-designed optical fiber cutting device and a high-accuracy fiber length measurement module based on optical frequency d
Externí odkaz:
https://doaj.org/article/4e7049fba2cc4560a88fdd92b60b5cdc
Autor:
Xinxin Su, Xiuyou Han, Shuanglin Fu, Shuo Wang, Chao Li, Qinggui Tan, Ge Zhu, Chao Wang, Zhenlin Wu, Yiying Gu, Mingshan Zhao
Publikováno v:
IEEE Photonics Journal, Vol 12, Iss 4, Pp 1-14 (2020)
Optical multipath RF self-interference cancellation (SIC) based on phase modulation for full-duplex communication is proposed and demonstrated experimentally. Phase modulation is utilized to convert the RF signal into optical domain, in which the tim
Externí odkaz:
https://doaj.org/article/f1792e05150e449fb0d246c1c13a9835
Publikováno v:
Micromachines, Vol 14, Iss 2, p 331 (2023)
Photonic integration brings the promise of significant cost, power and space savings and propels the real applications of microwave photonic technology. In this paper, a multiband radio frequency (RF) signal simultaneous receiver using an optical ban
Externí odkaz:
https://doaj.org/article/8b1f6c90116944ad96cb0af99af95644
Publikováno v:
IEEE Photonics Journal, Vol 11, Iss 2, Pp 1-8 (2019)
A refractive index sensor based on bimodal waveguide interferometer is demonstrated on the low-cost polymer platform for the first time. Different from conventional interferometers which make use of the interference between the light from two arms, b
Externí odkaz:
https://doaj.org/article/bf809883924b4507b5657740323210b4
Autor:
Wenwu Zhu, Eric R. Numkam Fokoua, Yong Chen, Thomas D. Bradley, Seyed Reza Sandoghchi, Meng Ding, Gregory T. Jasion, Marco N. Petrovich, Francesco Poletti, Mingshan Zhao, David J. Richardson, Radan Slavik
Publikováno v:
IEEE Access, Vol 7, Pp 113197-113205 (2019)
Positioning accuracy in 5G networks (achieved via techniques based on observed time difference of arrival (OTDoA)) is limited by the synchronization error between the cellular base stations. Here, we demonstrate that these base stations can be synchr
Externí odkaz:
https://doaj.org/article/bb5fb9ae0909488c83e34c61df1c2e17
Publikováno v:
Photonics, Vol 9, Iss 4, p 236 (2022)
A large dynamic frequency up-conversion scheme based on parallel dual-drive Mach–Zehnder modulators (DD-MZM) and balance detection is proposed and demonstrated experimentally. By optimizing the distribution ratio of the optical carrier power and th
Externí odkaz:
https://doaj.org/article/59dd094e214c4b1d9aff2e1f18a166b1