Search

We experimentally demonstrated a simplified NPE mode-locked fiber laser supporting both quasi-coherent noise-like and conventional soliton pulse emission in a single laser cavity. The dual-color pluses were separated and analyzed in detail.

We demonstrate a compact all polarization- maintaining mode-locked femtosecond fiber laser with three different non-reciprocal phase shifters. The achieved laser directly delivers 926 fs, 0.56 nJ pulses at the repetition rate of 88.3 MHz.

Inserting a ∼585 m highly nonlinear fiber to strengthen the nonlinear effects in cavity, we demonstrate a 318.5-kHz Erbium-doped fiber laser with nonlinear amplifying loop mirror. The versatile patterns of rectangular noise-like pulses are observed.

Emotion influences our daily life to a large extent, especially for those who are undergoing bad mood and have high risk for emotional disorders. It is hard to recognize them, but very important so that we can provide intervention before them getting worse. This study used EEG signals to recognize who has high risk for emotional disorders instead of emotion type only. The proposed machine learning method combined the features of multiple cortex areas and frequency bands to find the high risky group for emotional disorders through a kernel SVM classifier. It achieved the accuracy of 95.20%, with all cortex areas and all frequency bands. Results showed that the frontal cortex, central cortex and temporal cortex have a primary influence on identifying emotional disorder and can be used for the reference information for professional diagnose.

We experimentally and numerically demonstrate efficient supercontinuum generation in highly nonlinear dispersion-shifted fiber triggered by a weak 100-kHz linewidth continuous-wave at the 10−7 level relative to the pump, which is the lowest power reported.

The present research studied the effects of page scrolling style, reading task and column on the efficiency of text reading from a monitor. The results indicated that participants could finish their reading task more quickly when the task was information search than when it was reading comprehension and that they read texts more efficiently in one-column format than in two-column format. However, concerning the page-scrolling style, participants finished information search task more quickly in scrolling-by-line style while the opposite occurred when the task was reading comprehension.

Mobile interface ergonomics efficiency is on the center of the focus of small-screen interface design. This investigation performed a mixed design experiment to examine the effects of different arrangements of shortcuts and page-turning keys on the operation efficiency. The results showed the shortcuts and page-turning keys both had significant effects on user's performance. The interaction between the two also reached significance. Furthermore, the participants' reaction was significantly faster when there were shortcuts and page-turning keys than not.