Applications of Nonlinear Fiber Optics (Optics and Photonics - download pdf or read online


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 large influence of rare-earth-doped fibers, amplifiers and lasers made by utilizing such fibers are coated in Chapters four and five. The final 3 chapters describe vital purposes of nonlinear fiber optics and are dedicated to pulse-compression concepts, fiber-optic verbal exchange platforms, and soliton-based transmission schemes. This quantity may still serve good the necessity of the clinical group drawn to such fields as ultrafast phenomena, optical amplifiers and lasers, and optical communications. it's going to even be invaluable to graduate scholars in addition to scientists and engineers desirous about lightwave know-how. * education source for engineers concerned with lightwave know-how* Covers the significance of nonlinear results in designing WDM lightwave platforms* modern info for researchers

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This occurs simply because the coupled gap soliton forms at a lower peak power level than the Bragg soliton associated with each individual component [127]. 5 kW [108]. 19 (a) Grating transmissivity as a function of input peak power showing the operation of the AND gate and (b) output pulse shapes at a peak power level of 3 kW when only one polarization component (dashed line) or both polarization components (solid line) are incident at the input end. (After Ref. [111]) tion of input peak power and the transmitted pulse shapes (b) at a peak power of 3 kW.

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.

Using VG 1 β1g and Eq. 25) where the choice of ¦ signs depends on whether the pulse is moving in the κ ), optical forward or the backward direction. Far from the band edges ( δ pulse is unaffected by the grating and travels at the group velocity expected in the absence of the grating. However, as δ approaches κ , the group velocity κ. decreases and becomes zero at the two edges of the stop band where δ Thus, close to the photonic bandgap, an optical pulse experiences considerable 17 Grating Characteristics slowing down inside a fiber grating.

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

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