Improving the performance of high-efficiency element and beam splitter based on total internal reflection grating
BO WANG1,*
Affiliation
- Improving the performance of high-efficiency element and beam splitter based on total internal reflection grating
Abstract
We describe the dual-function device of high-efficiency element and beam splitter grating. In order to improve the efficiency,
total internal reflection (TIR) grating is introduced. With the grating parameters optimized using rigorous coupled wave
analysis (RCWA), high efficiency of 99.58% can be obtained for TE polarization in the -1st order and 50/50 output can be
achieved for TM polarization in the -1st and 0th orders. The presented dual-function grating device has advantages of high
efficiency of TIR, high damage threshold of fused silica, and good groove shape tolerance of the total reflection energy
during fabrication..
Keywords
Rigorous coupled-wave analysis, Total internal reflection, High efficiency, Beam splitter.
Citation
BO WANG, Improving the performance of high-efficiency element and beam splitter based on total internal reflection grating, Optoelectronics and Advanced Materials - Rapid Communications, 5, 7, July 2011, pp.701-703 (2011).
Submitted at: June 21, 2011
Accepted at: July 25, 2011