Subwavelength-grating-assisted broadband polarization-independent   directional coupler

doi:10.1364/OL.41.001648

CORC > 北京大学 > 信息科学技术学院

	Subwavelength-grating-assisted broadband polarization-independent directional coupler
	Liu, Lu ; Deng, Qingzhong ; Zhou, Zhiping
刊名	OPTICS LETTERS
	2016
关键词	SILICON-ON-INSULATOR SLOT WAVE-GUIDES MULTIMODE INTERFERENCE SPLITTER WAVELENGTH RESONATORS DEPENDENCE ROTATOR DESIGN BINARY
DOI	10.1364/OL.41.001648
英文摘要	This Letter presents both numerical and experimental results of a polarization-independent directional coupler based on slot waveguides with a subwavelength grating. The measured coupling efficiency is 97.4% for TE and 96.7% for TM polarization at a wavelength of 1550 nm. Further analysis shows that the proposed subwavelength grating directional coupler has a fabrication tolerance of +/- 20 nm for the grating structure and that the coupling efficiencies for the two polarizations are both higher than -0.5 dB (similar to 89%), exceeding the entire C-band (1525-1570 nm) experimentally. (C) 2016 Optical Society of America; National Natural Science Foundation of China (NSFC) [61120106012, 61177058]; SCI(E); EI; ARTICLE; zjzhou@pku.edu.cn; 7; 1648-1651; 41
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/437517]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Liu, Lu,Deng, Qingzhong,Zhou, Zhiping. Subwavelength-grating-assisted broadband polarization-independent directional coupler[J]. OPTICS LETTERS,2016.
APA	Liu, Lu,Deng, Qingzhong,&Zhou, Zhiping.(2016).Subwavelength-grating-assisted broadband polarization-independent directional coupler.OPTICS LETTERS.
MLA	Liu, Lu,et al."Subwavelength-grating-assisted broadband polarization-independent directional coupler".OPTICS LETTERS (2016).