B.D. Terris, S. Rishton, et al.
Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures
Bragg gratings have been formed in optical fibres by diffraction of a phase mask. This technique is expanded by allowing for the possibility of shifting the Bragg wavelength for a fixed mask periodicity. This method uses a simple lens to introduce a curvature on to the wavefront of the diffracting light that results in a magnification of the original periodicity formed by the mask. The Letter shows experimentally that the Bragg wavelength is shifted to shorter wavelength by the addition of a converging lens before the mask. © 1993, The Institution of Electrical Engineers. All rights reserved.
B.D. Terris, S. Rishton, et al.
Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures
O.C. Wells, S. Rishton
MSA Annual Meeting 1994
K.Y. Lee, N. LaBianca, et al.
Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures
W.J. Gallagher, S.S.P. Parkin, et al.
Journal of Applied Physics