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Proceedings Paper

Proposal and analysis of a double-tip coupler for efficient coupling fiber to slot and strip waveguides
Author(s): Qingzhong Huang; Weihua Han; Zhongchao Fan; Fuhua Yang; Yan Liu; Xi Xiao; Yu Zhu; Yuntao Li; Zhiyong Li; Yude Yu; Jinzhong Yu
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Paper Abstract

High efficiency coupling from fiber to slot and strip waveguides using a double-tip coupler is presented. The double tips are inverse tapered, while their distance is decreased. The coupling efficiency reaches 90.9% with a taper length of only 30μm for coupling fiber to slot waveguides. With a mode transformer, the slot waveguide mode can be converted to strip waveguide mode with an efficiency of 99.3% in a length of 15μm. The impact of several parameters, such as distance between tips, taper length, and tip-end width, are simulated and optimized to improve the coupling efficiency.

Paper Details

Date Published: 26 October 2009
PDF: 6 pages
Proc. SPIE 7516, Photonics and Optoelectronics Meetings (POEM) 2009: Optoelectronic Devices and Integration, 75160M (26 October 2009); doi: 10.1117/12.843412
Show Author Affiliations
Qingzhong Huang, Institute of Semiconductors (China)
Weihua Han, Institute of Semiconductors (China)
Zhongchao Fan, Institute of Semiconductors (China)
Fuhua Yang, Institute of Semiconductors (China)
Yan Liu, Institute of Semiconductors (China)
Xi Xiao, Institute of Semiconductors (China)
Yu Zhu, Institute of Semiconductors (China)
Yuntao Li, Institute of Semiconductors (China)
Zhiyong Li, Institute of Semiconductors (China)
Yude Yu, Institute of Semiconductors (China)
Jinzhong Yu, Institute of Semiconductors (China)

Published in SPIE Proceedings Vol. 7516:
Photonics and Optoelectronics Meetings (POEM) 2009: Optoelectronic Devices and Integration
Zishen Zhao; Ray T. Chen; Yong Chen; Jinzhong Yu; Junqiang Sun; Weiwei Dong, Editor(s)

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