Three-port beam splitter based on a sandwiched grating with an improved aspect ratio

• Autorzy: Shu W , Wang B , Li H , Li W , Chen L. , Lei L. , Zhou J.

Identyfikatory

DOI

10.5277/oa150301

• Języki publikacji: EN

Abstrakty

EN

In this paper, a fused-silica transmission grating used as a three-port beam splitter is designed by using the rigorous coupled-wave analysis, which is based on the sandwiched grating structure at the wavelength of 800 nm under normal incidence. Firstly, it is feasible to realize such a grating with the prescribed grating duty cycle and grating period. Next, high efficiency can be also achieved for both TE and TM polarizations. Moreover, the aspect ratio of the grating depth to the ridge width can be improved, which is significant for practical applications. At last, the three-port beam splitter is designed with a covering layer on the surface, which can extend its life service.

Słowa kluczowe

EN

aspect ratio; sandwiched grating; three-port beam splitter

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2015
• Tom: Vol. 45, nr 3
• Strony: 279--284
• Opis fizyczny: Bibliogr. 10 poz., rys.

Twórcy

autor

Shu W

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

autor

Wang B

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

autor

Li H

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

autor

Li W

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

autor

Chen L.

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

autor

Lei L.

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

autor

Zhou J.

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

Bibliografia

• [1] BO WANG, LI CHEN, LIANG LEI, JINYUN ZHOU, Polarization-selective beam splitter by a sandwiched grating, Optica Applicata 43(2), 2013, pp. 229–236.
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• [3] BO WANG, LI CHEN, LIANG LEI, JINYUN ZHOU, Two-layer dielectric grating as two-port beam splitter, IEEE Photonics Technology Letters 25(9), 2013, pp. 863–866.
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• [8] LINGWEI GUO, JIANYONG MA, Broad band beam splitter based on the double-groove fused silica grating, Optik – International Journal for Light and Electron Optics 125(1), 2014, pp. 232–234.
• [9] JIJUN FENG, CHANGHE ZHOU, BO WANG, JIANGJUN ZHENG, WEI JIA, HONGCHAO CAO, PENG LV, Three-port beam splitter of binary fused-silica grating, Applied Optics 47(35), 2008, pp. 6638–6643.
• [10] MOHARAM M.G., POMMET D.A., GRANN E.B., GAYLORD T.K., Stable implementation of the rigorous coupled-wave analysis for surface-relief gratings: enhanced transmittance matrix approach, Journal of the Optical Society of America A 12(5), 1995, pp. 1077–1086.