Zobrazeno 1 - 10
of 89
pro vyhledávání: '"Li Xian Wang"'
Publikováno v:
IEEE Photonics Journal, Vol 6, Iss 2, Pp 1-8 (2014)
We propose a novel approach for the generation of flat optical frequency comb (OFC) using a single polarization modulator (PolM) and a Brillouin-assisted power equalizer (BAPE). The reference radio-frequency (RF) signal applied to the PolM is provide
Externí odkaz:
https://doaj.org/article/e42484e6ee804bc3950f524b3a779f17
Publikováno v:
IEEE Photonics Journal, Vol 6, Iss 2, Pp 1-8 (2014)
We propose an optical vector network analyzer (OVNA) based on single-sideband (SSB) modulation and segmental measurement. The motivation of this work lies in the fact that it is hard for the previous SSB-based OVNA to measure a device-under-test (DUT
Externí odkaz:
https://doaj.org/article/279f2005889548f4b95c237eb6f95e48
Publikováno v:
IEEE Photonics Journal, Vol 4, Iss 2, Pp 427-436 (2012)
We propose and demonstrate a novel reconfigurable instantaneous frequency measurement (IFM) system based on the dual-parallel Mach-Zehnder modulator (DPMZM). The IFM system can be reconfigurable with tunable measurement range and resolution by simply
Externí odkaz:
https://doaj.org/article/c8ee950ebcbc492db176a079ed5ad7f2
Publikováno v:
IEEE Photonics Journal, Vol 3, Iss 3, Pp 462-467 (2011)
This paper presents a continuously tunable microwave photonic notch filter with a complex coefficient. The complex coefficient is generated using a radio-frequency (RF) phase shifter that consists of a dual-parallel Mach-Zehnder modulator (DPMZM) and
Externí odkaz:
https://doaj.org/article/5f50eefccb6d4b41a476eef112bc09ce
Autor:
Li‐Xian Wang, Wouter Beugeling, Fabian Schmitt, Lukas Lunczer, Julian‐Benedikt Mayer, Hartmut Buhmann, Ewelina M. Hankiewicz, Laurens W. Molenkamp
Publikováno v:
Advanced Science, Vol 11, Iss 19, Pp n/a-n/a (2024)
Abstract The band inversion of topological materials in three spatial dimensions is intimately connected to the parity anomaly of 2D massless Dirac fermions, known from quantum field theory. At finite magnetic fields, the parity anomaly reveals itsel
Externí odkaz:
https://doaj.org/article/a4bd35ca2729427a9ce0c504a6f20b6f
Publikováno v:
IEEE Photonics Journal, Vol 5, Iss 4, Pp 5501507-5501507 (2013)
We present a photonic approach to generating binary phase-coded microwave signals with large frequency tunability using a dual-parallel Mach-Zehnder modulator (DPMZM). The DPMZM consists of a pair of sub-MZMs embedded in the two arms of a parent MZM.
Externí odkaz:
https://doaj.org/article/32dc836fd3e34d138da6a0fce2110de9
Publikováno v:
IEEE Photonics Journal, Vol 5, Iss 5, Pp 5502007-5502007 (2013)
We theoretically and experimentally demonstrated a novel photonic approach to generating ultrawideband (UWB) pulses with large carrier frequency tunability based on an optical carrier phase-shifting technique by cascading polarization modulators (Pol
Externí odkaz:
https://doaj.org/article/83f700bd8a814197b520edf3967bd1eb
Publikováno v:
IEEE Photonics Journal, Vol 5, Iss 4, Pp 5501411-5501411 (2013)
We present a novel microwave photonic single-passband filter based on polarization control through simulated Brillouin scattering (SBS). The principle of the filter is based on a vector SBS process, which is different from the previously reported sca
Externí odkaz:
https://doaj.org/article/b38f18125a0f4c3d9710bce62627481b
Autor:
Lin Tao, Li-Gang Wang, Adeniyi C. Adeola, Long-Chao Zhang, Lian-Wei Li, Qing-Long Li, Dao-Ji Cen, Chen Yan, Zhan-Shan Ma, Li-Xian Wang, Hai-Bing Xie, Ya-Ping Zhang
Publikováno v:
Journal of Genetics and Genomics. 50:216-220
Publikováno v:
Materials Science Forum. 1066:65-69
In this paper, the simulated welding structure at different areas of heat affected zone (HAZ) of austenitic stainless steel are prepared by heating furnace, and the deference of intergranular corrosion resistance of all samples were determined by com