Temperature-compensated fiber-optic 3D shape sensor using femtosecond laser direct-written Bragg grating waveguides

被引：1

作者：

Lee, K. K. C. ^{[1
,2
]}

Mariampillai, A. ^{[3
]}

Haque, M. ^{[1
]}

Standish, B. A. ^{[2
]}

Yang, V. X. D. ^{[1
,2
,4
,5
]}

Herman, P. R. ^{[1
]}

机构：

[1] Univ Toronto, Inst Opt Sci, Edward S Rogers Sr Dept Elect & Comp Engn, 10 Kings Coll Rd, Toronto, ON M5S 3G4, Canada

[2] Ryerson Univ, Dept Elect & Comp Engn, Toronto, ON, Canada

[3] 7D Surg Inc, Toronto, ON, Canada

[4] Univ Toronto, Div Neurosurg, Toronto, ON, Canada

[5] SUNY Brook Hlth Sci Ctr, Div Neurosurg, Toronto, ON, Canada

来源：

FRONTIERS IN ULTRAFAST OPTICS: BIOMEDICAL, SCIENTIFIC, AND INDUSTRIAL APPLICATIONS XIV | 2014年 / 8972卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Bragg grating waveguides; femtosecond direct laser writing; fiber cladding photonics; fiber optics sensors;

D O I：

10.1117/12.2042264

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

A fiber-optic 3D shape, position and temperature sensor is demonstrated with femtosecond laser direct-written optical and Bragg grating waveguides that were distributed axially and radially inside a single coreless optical fiber. Efficient light coupling between the laser-written optical circuit elements and a standard single-mode optical fiber was obtained by 3D laser writing of a 1 x 3 directional coupler and fusion splicing. Coupler optimization by real-time monitoring of Bragg grating strengths is discussed. Simultaneous interrogation of nine Bragg gratings is presented through a single waveguide port to follow the Bragg wavelength shifts and thereby infer shape and temperature profile along the fiber length.

引用

页数：7

共 9 条

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