Polarizing beam splitter of a deep-etched fused-silica grating


Autoria(s): Wang Bo; 周常河; Wang Shunquan; Feng Jijun
Data(s)

2007

Resumo

We described a highly efficient polarizing beam splitter (PBS) of a deep-etched binary-phase fused-silica grating, where TE- and TM-polarized waves are mainly diffracted in the -1st and 0th orders, respectively. Tb achieve a high extinction ratio and diffraction efficiency, the grating depth and period are optimized by using rigorous coupled-wave analysis, which can be well explained based on the modal method with effective indices of the modes for TE/TM polarization. Holographic recording technology and inductively coupled plasma etching are employed to fabricate the fused-silica PBS grating. Experimental results of diffraction efficiencies approaching 80% for a TE-polarized wave in the -1st order and more than 85% for a TM-polarized wave in the 0th order were obtained at a wavelength of 1550 nm. Because of its compact structure and simple fabrication process, which is suitable for mass reproduction, a deep-etched fused-silica grating as a PBS should be a useful device for practical applications. (C) 2007 Optical Society of America

Identificador

http://ir.siom.ac.cn/handle/181231/2164

http://www.irgrid.ac.cn/handle/1471x/10607

Idioma(s)

英语

Fonte

Wang Bo;周常河;Wang Shunquan;Feng Jijun.,Opt. Lett.,2007,32(10):1299-1301

Palavras-Chave #TRANSMISSION GRATINGS #HIGH-EFFICIENCY #BROAD-BAND #DIFFRACTION #WAVELENGTH #DESIGN
Tipo

期刊论文