|
|||||
|
|
Study on the instantaneous characteristics of diffracted and transmitted light of static photorefractive grating illuminated by ultra-short pulse laser |
|
| Authors: | Bing Yang Xiaona Yan Yanhua Yang Hongfang Zhang |
| Institution: | aSchool of Physics Science and Information Technology, Liaocheng University, Liaocheng 252059, China bPhysics Department of Science College, Shanghai University, Shanghai 200444, China cChina United Telecommunications Corporation Zaozhuang Branch, Zaozhuang 277000, China |
| Abstract: | Based on Kogelnik's coupled wave theory, the time-domain diffraction and transmission of static PR gratings are theoretically studied when they are illuminated by ultra-short pulse laser. Study shows that the waveforms of the diffracted and transmitted pulses depend on the readout pulse duration, grating spacing, crystal thickness and refractive index modulation. By changing the values of these parameters, the diffracted and transmitted waveforms can be controlled. Also we find there is a displacement of diffracted and transmitted pulse along the time-axis when compared to readout pulse. Conclusions of our study could be used in many areas, such as pulse shaping and signal processing. |
| Keywords: | Photorefractive effect Ultra-short pulse laser Diffraction |
| 本文献已被 ScienceDirect 等数据库收录！ | |