NDLI: Novel Low-Loss Bandgaps in All-Silica Bragg Fibers

Content Provider	IEEE Xplore Digital Library
Author	Rowland, K.J. Afshar, S.V. Monro, T.M.
Copyright Year	1983
Abstract	We demonstrate that higher order bandgaps in all-silica Bragg fibers can have modes with four orders of magnitude lower confinement loss than those using the fundamental bandgap. A scheme for exploiting the higher order gaps for any specific wavelength via a global scaling of the fiber geometry is proposed. This approach provides lower losses than by reducing the confinement loss of the fundamental gap by scaling the core. Using a variety of modeling techniques, we have examined the band structure and guidance of idealized air-core all-silica Bragg fibers. It is demonstrated that the higher order, low loss, bandgaps analyzed here are uniquely accessible to single-material Bragg fibers, and are fundamentally different from the higher order gaps typically associated with depressed-index Bragg fibers such as the ldquoOmniguiderdquo fibers. Further analysis suggests that some of the key features of the guided modes of Bragg fibers can be understood by considering the properties of single hollow-core homogeneous dielectric waveguides (ldquoboreholesrdquo).
Sponsorship	IEEE Lasers and Electro-Optics Society Optical Society of America
Starting Page	43
Ending Page	51
Page Count	9
File Size	986865
File Format	PDF
ISSN	07338724
Volume Number	26
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Photonic band gap Optical fibers Geometry Photonic bandgap fibers Silicon compounds Australia Optical waveguides Refractive index Fabrication Dielectrics photonic bandgap fiber Bragg fiber microstructured optical fiber optical fiber design
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics

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