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MODULATION INSTABILITY IN THE REGION OF MINIMUM GROUP-VELOCITY DISPERSION OF SINGLE-MODE OPTICAL FIBERS VIA AN EXTENDED NONLINEAR SCHRODINGER-EQUATION
被引:155
|作者:
CAVALCANTI, SB
CRESSONI, JC
DACRUZ, HR
GOUVEIANETO, AS
机构:
[1] Departamento de Física, Universidade Federal de Alagoas, Macei, 57061, Alagoas
来源:
关键词:
D O I:
10.1103/PhysRevA.43.6162
中图分类号:
O43 [光学];
学科分类号:
070207 ;
0803 ;
摘要:
Modulation instability in the region of the minimum group-velocity dispersion is analyzed by means of an extended nonlinear Schrodinger equation. It is shown that the critical modulation frequency saturates at a value determined by the fourth-order dispersion. Experimental results demonstrate the viability of generating a train of femtosecond pulses with repetition rates of a few terahertz in reasonable agreement with the theory.
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页码:6162 / 6165
页数:4
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