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

By Govind Agrawal

Lots of the fabric during this quantity is new. the 1st 3 chapters care for 3 very important 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 lined in Chapters four and five. The final 3 chapters describe vital purposes of nonlinear fiber optics and are dedicated to pulse-compression ideas, fiber-optic communique structures, and soliton-based transmission schemes. This quantity should 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 excited by lightwave know-how. * education source for engineers concerned with lightwave expertise* Covers the significance of nonlinear results in designing WDM lightwave platforms* brand new details for researchers

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In contrast with the self-induced bistable switching discussed earlier, XPM-induced bistable switching can occur for a CW probe too weak to switch itself. Furthermore, the short pump pulse switches the probe beam permanently to the high-transmission state. 7 Related Periodic Structures This chapter has focused on uniform Bragg gratings (except for apodization) that are designed to couple the forward- and backward-propagating waves in- 45 Related Periodic Structures side an optical fiber. Many variations of this simple structure exist.

1 Bragg Solitons It was realized in 1989 that the coupled-mode equations, Eqs. 2), become identical to the well-known massive Thirring model [117] if the SPM term is set to zero. The massive Thirring model of quantum field theory is known to be integrable by the inverse scattering method [118]–[120]. When the SPM term is included, the coupled-mode equations become nonintegrable, and solitons do not exist in a strict mathematical sense. However, shape-preserving solitary waves can be obtained through a suitable transformation of the soliton supported by the massive Thirring model.

After Ref. [66]) time observed as the laser is tuned close to the stop-band edge because of the reduced group velocity. Doubling of the arrival time for δ close to 900 m 1 shows that the pulse speed was only 50% of that expected in the absence of the grating. This result is in complete agreement with the prediction of coupledmode theory. 10 can be attributed mostly to the grating-induced GVD effects in Eq. 26). The large broadening observed near the stop-band edge is due to an increase in β g2 .

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