Focusing-curved subwavelength grating couplers for ultra-broadband silicon photonics optical interfaces.
Focusing-curved subwavelength grating couplers for ultra-broadband silicon photonics optical interfaces.
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用于超宽带硅光子光学接口的聚焦弯曲亚波长光栅耦合器。
DOI：
10.1364/oe.22.018224
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发表时间：
2014
期刊：
影响因子：
3.8
通讯作者：
D. Plant
中科院分区：
文献类型：
--
作者：
Q. Zhong;V. Veerasubramanian;Yun Wang;W. Shi;D Patel;Samir Ghosh;Alireza Samani;L. Chrostowski;R. Bojko;D. Plant
We report on the design and characterization of focusing-curved subwavelength grating couplers for ultra-broadband silicon photonics optical interfaces. With implementation of waveguide dispersion engineered subwavelength structures, an ultra-wide 1-dB bandwidth of over 100 nm (largest reported to date) near 1550 nm is experimentally achieved for transverse-electric polarized light. By tapering the subwavelength structures, back reflection is effectively suppressed and grating coupling efficiency is increased to -4.7 dB. A compact device footprint of 40 µm × 20 µm is realized by curving the gratings in a focusing scheme.
影响因子：
3.6
作者：
Cheng, Zhenzhou;Chen, Xia;Tsang, Hon Ki
通讯作者：
Tsang, Hon Ki