An Ultra-Compact Wavelength Diplexer Engineered by Subwavelength Grating

doi:10.1109/LPT.2017.2743109

CORC > 北京大学 > 信息科学技术学院

	An Ultra-Compact Wavelength Diplexer Engineered by Subwavelength Grating
	Liu, Lu ; Deng, Qingzhong ; Zhou, Zhiping
刊名	IEEE PHOTONICS TECHNOLOGY LETTERS
	2017
关键词	Silicon photonics optical devices subwavelength grating SILICON-ON-INSULATOR MULTIMODE INTERFERENCE COUPLER WAVE-GUIDE DESIGN SLOT DEMULTIPLEXER PRINCIPLES DEVICES
DOI	10.1109/LPT.2017.2743109
英文摘要	With the assistance of subwavelength grating (SWG), an ultra-compact multimode interference (MMI)-based diplexer is proposed. A certain number of SWG pitches are implemented in the middle of the MMI section, which can engineer the effective refractive index for the modes and, therefore, tune the beat length. With proper tailoring of the grating parameters, the beat lengths of the two wavelengths can be reduced as well as the device length, which has to match several odd or even times of beat lengths of both wavelengths. As a result, the proposed wavelength diplexer is 43.4 mu m in length, which is only similar to 30% of its conventional counterpart. It also displays a wide 1-dB bandwidth of similar to 150 nm around the wavelength of 1310 and similar to 120 nm around the wavelength of 1550 nm. The insertion losses are less than 0.1 dB for the two operating wavelengths while the extinction ratios are both better than 20 dB.; National Natural Science Foundation of China [61377049, 61535002]; SCI(E); ARTICLE; 22; 1927-1930; 29
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/484519]
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. An Ultra-Compact Wavelength Diplexer Engineered by Subwavelength Grating[J]. IEEE PHOTONICS TECHNOLOGY LETTERS,2017.
APA	Liu, Lu,Deng, Qingzhong,&Zhou, Zhiping.(2017).An Ultra-Compact Wavelength Diplexer Engineered by Subwavelength Grating.IEEE PHOTONICS TECHNOLOGY LETTERS.
MLA	Liu, Lu,et al."An Ultra-Compact Wavelength Diplexer Engineered by Subwavelength Grating".IEEE PHOTONICS TECHNOLOGY LETTERS (2017).