Simultaneous measurement of strain and temperature using a single fiber Bragg grating written in an erbium:ytterbium-doped fiber

Author

Jaehoon Jung ; Hui Nam ; Namkyoo Park ; Byoungho Lee

Author_Institution

Sch. of Electr. Eng., Seoul Nat. Univ., South Korea

fYear

1999

fDate

28-28 May 1999

Firstpage

386

Abstract

Summary form only given. Discrimination of strain and temperature effects in fiber grating Bragg wavelength shift is a significant topic of recent research on fiber Bragg grating (FBG) sensors. In this paper, we present a simple sensor capable of simultaneous measurement of both strain and temperature using a single FBG written in Er/sup 3+/:Yb/sup 3+/ doped fiber (EYDF). We observed that the amplified spontaneous emission (ASE) power of the EYDF amplifier (EYDFA) has monotonically decreasing dependency on temperature in our range of measurement.

Keywords

Bragg gratings; erbium; fibre optic sensors; optical fibre amplifiers; strain sensors; superradiance; temperature sensors; ytterbium; Er/sup 3+/:Yb/sup 3+/ doped fiber; amplified spontaneous emission; amplifier; erbium:ytterbium-doped fiber; fiber Bragg grating sensors; fiber grating Bragg wavelength shift; simultaneous measurement; single fiber Bragg grating; strain; temperature; Bragg gratings; Capacitive sensors; Erbium; Fiber gratings; Optical fiber sensors; Power amplifiers; Spontaneous emission; Strain measurement; Temperature sensors; Wavelength measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 1999. CLEO '99. Summaries of Papers Presented at the Conference on

Conference_Location

Baltimore, MD, USA

Print_ISBN

1-55752-595-1

Type

conf

DOI

10.1109/CLEO.1999.834344

Filename

834344