Share Email Print
cover

Proceedings Paper

Optical fiber long-period grating-based Cu2+ measurement
Author(s): Saying Dong; Yunfeng Liu; Xiaoqing Tan; Yanbiao Liao; Qian Tian; Ming Luo
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

The detection of the change of concentration of cupric ions (Cu2+) by long-period grating (LPG) sensors was presented in this paper. A polymeric affinity coating was chemically attached to the surface of the LPG sensor with reaction times of 4 hours, 8 hours, and 12 hours, which is characterized of its surface appearance by scanning electronic microscope (SEM). By comparing the surface appearance of the polymeric affinity coating, a proper reaction time was chosen as the final experimental condition. The optimal experimental condition was applied to the LPG sensor, which was first dipped into cupric sulfate (CuSO4) solutions of different concentrations and then ethylene diamine tetraacetic acid (EDTA) solution. The intensity changes of typical transmission spectrum with Cu2+ concentrations were studied. Results showed that the intensity-based method of LPG sensor can reflect the change of the output light power and can be used to indicate the concentration of Cu2+.

Paper Details

Date Published: 6 December 2005
PDF: 6 pages
Proc. SPIE 6019, Passive Components and Fiber-based Devices II, 601923 (6 December 2005); doi: 10.1117/12.629282
Show Author Affiliations
Saying Dong, State Key Lab. for Marine Corrosion and Protection (China)
Tsinghua Univ. (China)
Yunfeng Liu, State Key Lab. for Marine Corrosion and Protection (China)
Shandong Univ. (China)
Xiaoqing Tan, State Key Lab. for Marine Corrosion and Protection (China)
Yanbiao Liao, Tsinghua Univ. (China)
Qian Tian, Tsinghua Univ. (China)
Ming Luo, State Key Lab. for Marine Corrosion and Protection (China)


Published in SPIE Proceedings Vol. 6019:
Passive Components and Fiber-based Devices II
Yan Sun; Jianping Chen; Sang Bae Lee; Ian H. White, Editor(s)

© SPIE. Terms of Use
Back to Top