YuShan Chen

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A cell-type saturable absorber has been demonstrated by filling the single mode photonic crystal fiber (SMPCF) with tungsten disulfide (WS2) nanosheets. The modulation depth, saturable intensity, and non-saturable loss of this SA are measured to be 3.53%, 159 MW/cm(2) and 23.2%, respectively. Based on this SA, a passively mode-locked EDF laser has been(More)
This paper proposed a fast mode decision algorithm for H.264. It performs SKIP mode test firstly. If the SKIP mode is not suitable for the current MB, it performs 16x16 mode test secondly. If the 16x16 mode is not suitable for the current MB, candidate modes for current MB are inferred from given coded correlated MBs by adopting the information of defined(More)
In this paper, we demonstrate a high-damage-resistant tungsten disulfide saturable absorber mirror (WS<sub>2</sub>-SAM) fabricated by magnetron sputtering technique. The WS<sub>2</sub>-SAM has an all-fiber-integrated configuration and high-damage-resistant merit because the WS<sub>2</sub> layer is protected by gold film so as to avoid being oxidized and(More)
The nanosphere lithography (NSL) method can be developed to deposit the Au-Ag triangle hexagonal nanoparticle arrays for the generation of localized surface plasmon resonance. Previously, we have found that the parameters used to form the NSL masks and the physical methods required to deposit the Au-Ag thin films had large effects on the geometry properties(More)
In this study, the nanosphere lithography (NSL) method was used to fabricate hybrid Au-Ag triangular periodic nanoparticle arrays. The Au-Ag triangular periodic arrays were grown on different substrates, and the effect of the refractive index of substrates on fabrication and optical properties was systematically investigated. At first, the optical spectrum(More)
With the rapid development of microprocessor, embedded multimedia products are gradually becoming the mainstream in the market. However, the high coding efficiency enabled by the H.264 video compression standard comes with substantially greater algorithmic complexity as compared to that of existing standards. And this additional complexity results in many(More)
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