"

Cookies ussage consent

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

I agree, do not show this message again.

Wideband femtosecond polarizing beam splitter grating with orthogonally diffractive directions

BO WANG1,* , YONGCHAN LI2

Affiliation

  1. School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China
  2. English Education Center, Guangdong Peizheng College, Guangzhou 510830, China

Abstract

We describe gratings etched in fused silica for splitting femtosecond polarized beams, where TE- and TM-polarized waves are diffracted in two orthogonal directions. Grating duty cycle and depth are directly optimized with two-wave interference of the excited modes. Efficiencies are calculated using rigorous coupled-wave analysis, which coincides well with predictions of the modal method. Optimized polarizing beam splitter grating shows wide wavelength range and angular bandwidth from diffraction properties. For high optical quality of fused silica, the presented PBS grating with orthogonally diffractive directions should be useful in femtosecond laser high power systems..

Keywords

diffractive optics, modal method, rigorous coupled-wave analysis, polarizing beam splitter..

Submitted at: Oct. 5, 2010
Accepted at: June 9, 2011

Citation

BO WANG, YONGCHAN LI, Wideband femtosecond polarizing beam splitter grating with orthogonally diffractive directions, Journal of Optoelectronics and Advanced Materials Vol. 13, Iss. 6, pp. 609-612 (2011)