Read e-book online Fiber Optic Technology - Applications to Commercial, PDF

By Asu Ram Jha

ISBN-10: 1613442874

ISBN-13: 9781613442876

ISBN-10: 1884932606

ISBN-13: 9781884932601

This ebook deals complete insurance of the optimal layout of a variety of fiber optic structures. the writer avoids complicated arithmetic and derivations, yet deals the equations essential to eloquently describe fiber optic elements and structures. clarity is stronger via first-class figures, diagrams and graphs. one of many extra vital gains of this publication is great assurance of a large choice of purposes together with army and house, advertisement and business platforms, communications and telecommunications structures, scientific and medical functions, and business sensors. The ebook is written in language for simple comprehension through scholars and access point engineers and includes numerical information to illustrate the original functionality functions of fiber optic established elements and platforms frequent in clinical and commercial examine.

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Additional info for Fiber Optic Technology - Applications to Commercial, Industrial, Military, and Space Optical Systems

Example text

BP filters are available for use in WDM or dense-WDM systems with 16, 32, 64, or higher channel capability. 005 nm per degree Celsius. Significant performance improvement is possible at cryogenic temperatures. 3 Add-drop Filters Using On-Chip Technology A two-dimensional digital micrometer (TDDM) can act as a fault-tolerant add-drop filter with potential applications in WDM and dense-WDM communications systems. The TDDM can be coupled by free-space optics to optical-fiberconnected array-waveguide-grating (AWG) multiplexers that form a twodimensional in/out feed device.

The limiters only allow the transmission of low-intensity optical signals, while blocking the highintensity signals. These devices use microlens arrays, porous optical substrates, and optical fibers of specific lengths. The new generation of optical-limiter designs will be based on sol-gel glass fabrication technology capable of 55 56 Chapter 3: Fiber Optic Passive Components Circulator 1 λ1 λ3 λ5 λ7 1 Input λ 1,2,3,4,5,6,7,8 Fiber Bragg Gratings Isolator 2 λ2 λ6 3 Circulator 2 3-dB Coupler λ2 λ4 λ6 λ8 1 Fiber Bragg Gratings 2 3 λ1 λ5 BWDM4 λ4 BWDM8 BWDM2 λ8 λ2 BWDM6 BWDM3 λ6 λ3 BWDM7 BWDM1 λ7 λ1 BWDM5 λ5 Demultiplexer (a) Demultiplexer Configuration Circulator 1 λ4 BWDM4 λ8 λ2 BWDM8 BWDM2 λ6 λ3 BWDM6 BWDM3 λ7 λ1 BWDM7 BWDM1 λ5 BWDM5 λ6 λ2 2 3 Circulator 2 λ6 λ2 2 Input λ 1,2,3,4,5,6,7,8 1 3 dB Coupler 3 1 Multiplexer (b) Multiplexer Configuration Figure 3–1 Demultiplexing (a) and multiplexing system (b) configurations showing various FO components.

It is the same for all modes present in the core. The second term is called group delay and is associated with the wave guidance. 38. 39. 40 have been computed for this particular mode These are shown in Table 2–6 Using the above equations, one can obtain values of normalized group delay for other modes. Computed values of normalized group delay as a function of normalized frequency (V) for three distinct modes are shown in Figure 2–6. Table 2–6 Computed values of normalized group delay for HE11 hybrid mode.

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Fiber Optic Technology - Applications to Commercial, Industrial, Military, and Space Optical Systems by Asu Ram Jha


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