barcode project in vb.net Transport Technologies in Software

Drawer Code-39 in Software Transport Technologies

Transport Technologies
Recognize Code 3/9 In None
Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications.
Code 39 Extended Generation In None
Using Barcode creator for Software Control to generate, create Code39 image in Software applications.
7
Code 3 Of 9 Reader In None
Using Barcode recognizer for Software Control to read, scan read, scan image in Software applications.
Code 39 Encoder In Visual C#.NET
Using Barcode printer for .NET Control to generate, create USS Code 39 image in .NET framework applications.
please make your way to the exit. Shoppers begin to make their way to the doors, but some wander from store to store, window-shopping along the way, while others take a relatively straight route to the exit. The result is that some shoppers take longer than others to exit the mall because there are different modes. Now consider a mall that has a single, very narrow corridor that is only as wide as a person s shoulders. Now when the announcement comes, everyone heads for the exit, but they must form a single file line and head out in an orderly fashion. If you understand the difference between these two examples, you understand multimode vs. singlemode fiber. The first example represents multimode; the second represents single mode.
USS Code 39 Printer In .NET
Using Barcode generator for ASP.NET Control to generate, create Code 39 Full ASCII image in ASP.NET applications.
Painting Code 3/9 In VS .NET
Using Barcode encoder for Visual Studio .NET Control to generate, create Code-39 image in .NET framework applications.
Multimode Fiber
Code 3/9 Printer In VB.NET
Using Barcode generation for VS .NET Control to generate, create Code 39 Full ASCII image in Visual Studio .NET applications.
Creating Universal Product Code Version A In None
Using Barcode creation for Software Control to generate, create UPC Symbol image in Software applications.
The first of these examples was multimode fiber, which arrived in a variety of different forms. Multimode fiber bears this name because it allows more than a single mode or ray of light to be carried through the fiber simultaneously because of the relatively wide core diameter that characterizes the fiber. And while the dispersion that potentially results from this phenomenon can be a problem, there are advantages to the use of multimode fiber. For one thing, it is far easier to couple the relatively wide and forgiving end of a multimode fiber to a light source than that of the much narrower single-mode fiber. It is also significantly less expensive to manufacture (and purchase) and relies on LEDs and inexpensive receivers rather than the more expensive laser diodes and ultrasensitive receiver devices. However, advancements in technology have caused the use of multimode fiber to fall out of favor; single-mode fiber is far more commonly used today. Multimode fiber is manufactured in two forms: step-index fiber and graded-index fiber. We will examine each in turn.
EAN 128 Encoder In None
Using Barcode encoder for Software Control to generate, create EAN / UCC - 13 image in Software applications.
Print Barcode In None
Using Barcode creator for Software Control to generate, create bar code image in Software applications.
Multimode Step-Index Fiber
Barcode Creator In None
Using Barcode drawer for Software Control to generate, create bar code image in Software applications.
ECC200 Creation In None
Using Barcode drawer for Software Control to generate, create Data Matrix 2d barcode image in Software applications.
In step-index fiber, the index of refraction of the core is slightly higher than the index of refraction of the cladding. Remember that the higher the refractive index, the slower the signal travels through the medium. Thus, in step-index fiber, any light that escapes into the cladding because it enters the core at too oblique an angle will actually travel slightly faster in the cladding (assuming it does not escape altogether) than it
International Standard Book Number Generator In None
Using Barcode creator for Software Control to generate, create ISBN - 13 image in Software applications.
Encode Code 128A In Objective-C
Using Barcode maker for iPhone Control to generate, create Code 128B image in iPhone applications.
Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright 2004 The McGraw-Hill Companies. All rights reserved. Any use is subject to the Terms of Use as given at the website.
Create Data Matrix ECC200 In None
Using Barcode creator for Font Control to generate, create Data Matrix ECC200 image in Font applications.
Generating ANSI/AIM Code 128 In Java
Using Barcode printer for Eclipse BIRT Control to generate, create Code-128 image in BIRT reports applications.
Transport Technologies
European Article Number 13 Generator In Java
Using Barcode creator for Android Control to generate, create EAN / UCC - 13 image in Android applications.
Encoding Universal Product Code Version A In None
Using Barcode creation for Font Control to generate, create UPC-A Supplement 2 image in Font applications.
Transport Technologies
Generate ANSI/AIM Code 39 In C#
Using Barcode generation for VS .NET Control to generate, create Code 39 Full ASCII image in .NET applications.
Draw UPCA In None
Using Barcode printer for Office Excel Control to generate, create UPC-A image in Microsoft Excel applications.
would if it traveled in the core. Of course, any rays that are reflected repeatedly as they traverse the core also take longer to reach the receiver, resulting in a dispersed signal that causes problems for the receiver at the other end. Clearly, this phenomenon is undesirable; for that reason, graded-index fiber was developed.
Multimode Graded-Index Fiber
Because of the dispersion that is inherent in the use of step-index fiber, optical engineers created graded index fiber as a way to overcome the signal degradation that occurred. In graded-index fiber, the refractive index of the core actually decreases from the center of the fiber outward. In other words, the refractive index at the center of the core is higher than the refractive index at the edge of the core. The result of this rather clever design is that, as light enters the core at multiple angles and travels from the center of the core outward, it is actually accelerated at the edge and slowed down near the center, causing most of the light to arrive at roughly the same time. Thus, graded-index fiber helps to overcome the dispersion problems associated with step-index multimode fiber. Light that enters this type of fiber does not travel in a straight line, but rather follows a parabolic path, with all rays arriving at the receiver at more or less the same time. Graded-index fiber typically has a core diameter of 50 to 62.5 microns, with a cladding diameter of 125 microns. Some variations exist; there is at least one form of multimode graded index with a core diameter of 85 microns, somewhat larger than those described previously. Furthermore, the actual thickness of the cladding is important: If it is thinner than 20 microns, light begins to seep out, causing additional problems for signal propagation. Graded-index fiber was commonly used in telecommunications applications until the late 1980s. Even though graded-index fiber is significantly better than step-index fiber, it is still multimode fiber and does not eliminate the problems inherent in being multimode. Thus was born the next generation of optical fiber: single-mode.
Copyright © OnBarcode.com . All rights reserved.