BOOK_CONTENT
From Specialty Optical Fibers Handbook

Charles R.Kurkjian and M.John Matthewson

Photonic Components Reliability Group, Department of Materials Science and Engineering, Rutgers University, Piscataway, New Jersey

24.1 INTRODUCTION

Silica-based light-guide fibers have been produced and deployed with great success in spite of their well-known brittleness. For instance, techniques have been developed that allow long lengths (tens of kilometers) of such fibers to be drawn and coated in-line. The preform and draw processes allow production fiber that has a flaw-free surface with, essentially, the theoretical strength under the conditions of use/test (~5.5 GPa) for most of its length. The few manufacturing defects that occur are eliminated by a proof-testing procedure that allows the remaining length of fiber to attain almost any desired guaranteed strength. While the commonly specified proof stress is approximately 700 MPa, by reducing the available continuous lengths and at some increase in cost, higher proof stresses are possible. Success of this sort has not been achieved with all glass fibers, however. Multicomponent silicate fibers, hollow waveguides, and photonic crystal guides have been studied much less, and while their capabilities can be predicted to some extent, very few data are available. The mechanical properties of other specialty glass fibers, such as heavy-metal fluoride (HMF), telluride, and chalcogenide glasses, have also been studied with varying degrees of success.

Intensive study and modification of the processes used for manufacturing the fiber preforms and the resulting fiber have resulted in the very high quality fiber described earlier. The use of very high quality raw materials for the core...

Copyright Elsevier Inc. 2007 under license agreement with Books24x7

Products & Services
Specialty Optical Fiber
Specialty optical fiber is modified, usually by doping, for a specialized function. It consists of one or more transparent fibers enclosed in a protective covering.
Glass Fibers and Fiberglass Cloth
Glass fibers and fiberglass cloth consist of bulk, chopped fibers or continuous strands of glass. Glass fibers and fiberglass cloth is used in reinforcing plastics and composites as well as other specialized electrical and thermal applications.
Synthetic Fibers and Fabrics
Synthetic fibers and synthetic fabrics consist of bulk fibers, yarns, woven cloth or other textile products manufactured from polymer-based materials such as polyamide (nylon), polyester, aramid, or other spun thermoplastics.
Fiber Optic Light Guides
Fiber optic light guides are bundles of optical fibers used for the controlled deliver of light. They tend to be more rigid, and transmit well in both the visible and near-infrared (near-IR) regions of the electromagnetic spectrum.  Fiber optic light guides are sometimes called fiber optic light pipes (fiber optic lightpipes). 
Fiber Optic Cables
Fiber optic cables are composed of one or more transparent optical fibers enclosed in protective coverings and strength members. Fiber optic cables are used to transmit "light" data.

Topics of Interest

James A.Harrington Departments of Ceramics and Materials Engineering, Rutgers University, Piscataway, New Jersey 13.1 INTRODUCTION Infrared (IR) optical fibers are fibers that transmit radiation from...

Stephen Montgomery ElectroniCast Corp., San Mateo, California 1.1 MARKET OVERVIEW ElectroniCast has studied the potential use and market consumption for a variety of specialty optical fibers. All of...

Long Fiber Reinforced Thermoplastics are a recent development in newer technologies where PP or thermoplastic material is directly compounded with long glass fibers (rovings) and then molded in one...

It is out of the question to give an exhaustive description of the various methods for making optical waveguides; we will only describe the principle of the original methods that have then been the...

Properties of Fibers Man-made fibers are stronger and durable than natural fibers. Synthetic fibers are not affected by chemicals, rot, or mildew. Most synthetic fibers can be stored wet or dry. A...