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Optical Solitons
book

Optical Solitons

by Yuri S. Kivshar, Govind Agrawal
June 2003
Intermediate to advanced content levelIntermediate to advanced
540 pages
29h 55m
English
Academic Press
Content preview from Optical Solitons
11.4. BRIGHT AND DARK SOL1TONS
401
These analytical estimates are shown with the dashed lines in Figure 11.6.
It is interesting to compare these results with those obtained in the framework of
the coupled-mode theory (see Section 11.2.3), valid for a narrow bandgap (i.e., for
small a and small I0). Although the nonlinear coupling coefficient in Eq. (11.2.20)
is different than that of the coupled-mode theory for shallow gratings [66], the key
stability result remains the same--the oscillatory instability appears above a certain
critical intensity proportional to the bandgap width. In our case, the bandgap width ...
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Publisher Resources

ISBN: 9780124105904