All-fiber hybrid photon-plasmon circuits:
integrating nanowire plasmonics with fiber
optics
Xiyuan Li,
1
Wei Li,
1
Xin Guo,
1,*
Jingyi Lou,
2
and Limin Tong
1,3
1
State Key Laboratory of Modern Optical Instrumentation, Department of Optical Engineering, Zhejiang
University, Hangzhou 310027, China
2
College of Science, Zhejiang University of Science and Technology, Hangzhou 310023, China
3
phytong@zju.edu.cn
*
guoxin@zju.edu.cn
Abstract: We demonstrate all-fiber hybrid photon-plasmon circuits by
integrating Ag nanowires with optical fibers. Relying on near-field
coupling, we realize a photon-to-plasmon conversion efficiency up to 92%
in a fiber-based nanowire plasmonic probe. Around optical communication
band, we assemble an all-fiber resonator and a Mach-Zehnder
interferometer (MZI) with Q-factor of 6 × 10
6
and extinction ratio up to 30
dB, respectively. Using the MZI, we demonstrate fiber-compatible
plasmonic sensing with high sensitivity and low optical power.
©2013 Optical Society of America
OCIS codes: (250.5403) Plasmonics; (060.2310) Fiber optics; (230.0230) Optical devices;
(130.6010) Sensors.
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Received 19 Apr 2013; revised 13 Jun 2013; accepted 17 Jun 2013; published 24 Jun 2013
(C) 2013 OSA
1 July 2013 | Vol. 21, No. 13 | DOI:10.1364/OE.21.015698 | OPTICS EXPRESS 15698
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