"

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.

Reflective binary grating with a metal layer for polarization-independent beam splitter

BO WANG1,* , LI CHEN1, LIANG LEI1, JINYUN ZHOU1

Affiliation

  1. School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China

Abstract

We describe a reflective beam splitter based on the binary grating with a metal layer, which consists of the phase grating etched in fused silica, the Ag layer evaporated on the substrate. With the optimized grating parameters, especially for the grating duty cycle, the high efficiency and the 50/50 output can be obtained for TE and TM polarizations. Moreover, good performance can be remained within the given range near the central wavelength and Bragg angle. Such a reflective beam splitter based on the binary grating with a metal layer can have advantages of high efficiency, good uniformity, and polarization-independent property..

Keywords

Binary grating, Metal layer, Beam splitter.

Citation

BO WANG, LI CHEN, LIANG LEI, JINYUN ZHOU, Reflective binary grating with a metal layer for polarization-independent beam splitter, Optoelectronics and Advanced Materials - Rapid Communications, 7, 11-12, November-December 2013, pp.813-816 (2013).

Submitted at: Dec. 21, 2012

Accepted at: Nov. 7, 2013