Presentation Information
[9p-P03-13]Real-time FBG sensor using Wavelength-Division Multiplexed Dual-wavelength differential detection technique
〇Takumi Onimura1, Keiji Kuroda1 (1.Kitasato Univ.)
Keywords:
Fiber Bragg Grating,Dual-wavelength differential detection
A Fiber Bragg Grating (FBG) is a device that has a diffraction grating in the core of an optical fiber, and the grating’s period changes when temperature changes or strain is applied. Dual-Wavelength Differential Detection(DWDD) is a method for measuring the FBG reflection peak wavelength from the ratio between the reflection intensities of a two-wavelength pulse pair from the FBG. We report on wavelength-division multiplexed real-time sensing using DWDD.