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Showing papers by "Philip St. J. Russell published in 1999"


Journal ArticleDOI
TL;DR: A fiber taper and fused-fiber coupler fabrication rig that uses a scanning, focused, CO(2) laser beam as the heat source and the versatility associated with scanning means tapers of any transition shape and uniform taper waist can be produced.
Abstract: We report the development of a fiber taper and fused-fiber coupler fabrication rig that uses a scanning, focused, CO2 laser beam as the heat source. As a result of the pointlike heat source and the versatility associated with scanning, tapers of any transition shape and uniform taper waist can be produced. Tapers with both a linear shape and an exponential transition shape were measured. The taper waist uniformity was measured and shown to be better than ±1.2%. The rig was also used to make fused-fiber couplers. Couplers with excess loss below -0.1 dB were routinely produced.

124 citations


Journal ArticleDOI
TL;DR: In this paper, a vector treatment of electromagnetic modes localized at defects in two-dimensional (2D) photonic crystals is presented. But the method represents the fields in terms of orthogonal functions localized at the defect and is a fully vector treatment.
Abstract: We present a novel, general, and numerically efficient treatment of electromagnetic modes localized at defects in two-dimensional (2-D) photonic crystals. The method represents the fields in terms of orthogonal functions localized at the defect and is a fully vector treatment.

119 citations


Journal ArticleDOI
TL;DR: In this paper, the emission of 532-nm light through the photonic crystal cladding of an optically pumped Er/sup 3+/-doped silica/air photonic fiber was studied.
Abstract: The paper studies the emission of 532-nm light through the photonic crystal cladding of an optically pumped Er/sup 3+/-doped silica/air photonic crystal fiber. The angular emission pattern is compared with the results of a multiple scattering simulation. Good agreement is obtained.

31 citations


Proceedings ArticleDOI
19 Jul 1999
TL;DR: In this article, a novel analysis of specially designed photonic crystal fibers accounts for the existence of endlessly single-mode structures with flattened dispersion, and an approach permits to control the fiber dispersion in terms of its geometrical parameters.
Abstract: A novel analysis of specially designed photonic crystal fibers accounts for the existence of endlessly single-mode structures with flattened dispersion. Our approach permits to control the fiber dispersion in terms of its geometrical parameters.© (1999) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.

8 citations