Based on the coupled wave theory of Kogelnik, variations of the diffracted and transmitted beams with time are theoretically studied when PR hologram is illuminated by femtosecond pulse. We find that the waveforms of the diffracted and transmitted pulses depend on the input pulse duration, grating spacing, crystal thickness and modulation of the refractive index. By changing values of these parameters, the diffracted and transmitted pulse waveforms can be controlled to satisfy our desire. We also find that the diffracted and transmitted pulses have a displacement along the t-axis comparing to that of the input pulse. Conclusions of our study can be used in many areas, such as pulse shaping and signal processing.

Date Published: 24 August 2006
PDF: 11 pages
Proc. SPIE 6314, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications XII, 63141X (24 August 2006); doi: 10.1117/12.683903

Published in SPIE Proceedings Vol. 6314:
Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications XII
Francis T. S. Yu; Ruyan Guo; Shizhuo S. Yin, Editor(s)