title: Acoustic-induced switching of the reflection wavelength in a fiber Bragg grating.
abstract: Coupling between copropagating core and cladding modes was implemented by acoustic generation of lateral vibration of an etched fiber. When these coupling processes were combined with counterpropagating coupling of a core mode and a cladding mode and the Bragg reflection of a fiber grating, switching of reflection wavelength between the Bragg wavelength and cladding-mode coupling wavelengths was achieved. We report the implementation of such acoustically induced switching behaviors and explain their operation principles. The implemented results can be used for wavelength-division multiplexed add-drop filtering.
authors: W F
authors: WF
authors: Liu
authors: I M
authors: IM
authors: Liu
authors: L W
authors: LW
authors: Chung
authors: D W
authors: DW
authors: Huang
authors: C C
authors: CC
authors: Yang