Binary blazed grating-based polarization-independent filter on silicon on insulator

Danhua WU; Xin SUI; Junbo YANG; Zhiping ZHOU

doi:10.1007/s12200-012-0199-4

Front. Optoelectron. ›› 2012, Vol. 5 ›› Issue (1) : 78 -81. DOI: 10.1007/s12200-012-0199-4

RESEARCH ARTICLE

Binary blazed grating-based polarization-independent filter on silicon on insulator

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Abstract

In this paper, a binary blazed grating-based polarization independent filter on silicon on insulator (SOI) under full conical incidence is presented. The properties of the grating filter are investigated by rigorous coupled-wave analysis. It’s shown that the filter demonstrates high reflectivity (R>99%) at its resonant wavelength, which stays the same under three different polarization states. It indicates that this grating filter is polarization-independent. The final data shows its polarization-dependent loss (PDL) is only 0.04 dB and the full width at half maximums (FWHMs) of the transverse electric (TE-) and transverse magnetic (TM-) polarized light are 0.24 and 0.46 nm, respectively.

Keywords

narrow filter / binary blazed grating / full conical incidence / polarization-independent

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Danhua WU, Xin SUI, Junbo YANG, Zhiping ZHOU. Binary blazed grating-based polarization-independent filter on silicon on insulator. Front. Optoelectron., 2012, 5(1): 78-81 DOI:10.1007/s12200-012-0199-4