Spectral shaping of fiber Bragg gratings based on non-rigid origami
Journal
Optics Letters
Journal Volume
46
Journal Issue
19
Start Page
4825
End Page
4827
ISSN
01469592
15394794
Date Issued
2021
Author(s)
Abstract
We present a spectrum-tunable fiber Bragg grating (FBG) based on a unique compress-twist deformation mode of non-rigid origami. By applying axial displacement on the FBG-bonded Kresling-ori, a non-uniform strain field emerges. The mechanics-induced non-uniform strain can shift the wavelength of an apodized unchirped FBG and/or transform an apodized unchirped FBG to a chirped one. For the spectrum-shaping mode, the bandwidth of the FBG was tuned from 0.32 nm up to 2.9 nm, measured at the −6 dB level. For the wavelength-shift mode, a maximum wavelength shift of 0.6 nm can be achieved.
Subjects
Axial Displacements
Deformation Modes
Non-rigid
Non-uniform Strain
Spectra's
Spectral Shaping
Strain Fields
Tunable Fiber Bragg Gratings
Twist Deformations
Wavelength Shift
Fiber Bragg Gratings
Publisher
The Optical Society
Type
journal article