By Govind Agrawal

ISBN-10: 0120451441

ISBN-13: 9780120451449

Many of the fabric during this quantity is new. the 1st 3 chapters care for 3 vital fiber-optic components--fiber-based gratings, couplers, and interferometers--that function the construction blocks of lightwave expertise. In view of the big impression of rare-earth-doped fibers, amplifiers and lasers made by utilizing such fibers are lined in Chapters four and five. The final 3 chapters describe vital functions of nonlinear fiber optics and are dedicated to pulse-compression options, fiber-optic verbal exchange structures, and soliton-based transmission schemes. This quantity may still serve good the necessity of the medical neighborhood attracted to such fields as ultrafast phenomena, optical amplifiers and lasers, and optical communications. it's going to even be valuable to graduate scholars in addition to scientists and engineers all in favour of lightwave know-how. * education source for engineers concerned with lightwave expertise* Covers the significance of nonlinear results in designing WDM lightwave structures* modern info for researchers

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Additional resources for Applications of Nonlinear Fiber Optics (Optics and Photonics Series)

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23 CW Nonlinear Effects In this section, these equations are used to study the nonlinear effects for CW beams. The time-dependent effects are discussed in later sections. 1 Nonlinear Dispersion Curves In almost all cases of practical interest, the β 2 term can be neglected in Eqs. 12). For typical grating lengths ( 1 m), the loss term can also be neglected by setting α 0. 2) where vg is the group velocity far from the stop band associated with the grating. These equations exhibit many interesting nonlinear effects.

The fitted curve was calculated using Eq. 29). The 94% peak reflectivity indicates κ L 2 for this grating. 7-nm wide. 84 mm and an index change of 1 2 ¢ 10 3 . The coupled-mode theory explains the observed reflection and transmission spectra of fiber gratings quite well. An undesirable feature seen in Figs. 8 from a practical standpoint is the presence of multiple sidebands located on each side of the stop band. These sidebands originate from weak reflections occurring at the two grating ends where the refractive index changes suddenly compared to its value outside the grating region.

2 Effective NLS Equation The similarity of the gain spectrum in Fig. 1) indicates that, at not-too-high power levels, the nonlinear coupled-mode equations predict features that coincide with those found for the NLS equation. Indeed, under certain conditions, Eqs. 4) can be reduced formally to an effective NLS equation [96]–[100]. A multiple-scale method is commonly used to prove this equivalence; details can be found in Ref. [79]. The analysis used to reduce the nonlinear coupled-mode equations to an effective NLS equation makes use of the Bloch formalism well known in solidstate physics.

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Applications of Nonlinear Fiber Optics (Optics and Photonics Series) by Govind Agrawal

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