Title :
Leaky cladding mode propagation in long-period fiber grating devices
Author :
Stegall, D.B. ; Erdogan, T.
Author_Institution :
Inst. of Opt., Rochester Univ., NY, USA
fDate :
3/1/1999 12:00:00 AM
Abstract :
We investigate leaky-mode propagation of the cladding modes of an optical fiber through coupling with a long-period fiber grating. A one-dimensional ray propagation model is applied. Experimental measurements are compared to a transfer-matrix model to estimate the cladding mode losses. Losses are also measured using an all-fiber Mach-Zehnder mode interferometer. The measured losses are somewhat greater than predicted by the simple theory.
Keywords :
Mach-Zehnder interferometers; diffraction gratings; light interferometry; optical fibre cladding; optical fibre couplers; optical fibre losses; optical fibre testing; optical fibre theory; all-fiber Mach-Zehnder mode interferometer; cladding mode losses; cladding modes; coupling; leaky cladding mode propagation; leaky-mode propagation; long-period fiber grating; long-period fiber grating devices; one-dimensional ray propagation model; optical fiber; transfer-matrix model; Fiber gratings; Loss measurement; Optical fiber devices; Optical fiber polarization; Optical fiber theory; Optical fibers; Optical interferometry; Optical propagation; Optical waveguides; Refractive index;
Journal_Title :
Photonics Technology Letters, IEEE
