期刊
PHYSICAL REVIEW LETTERS
卷 84, 期 26, 页码 6010-6013出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.84.6010
关键词
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Ultrashort pulse propagation in high gain optical fiber amplifiers with normal dispersion is studied by self-similarity analysis of the nonlinear Schrodinger equation with gain. An exact asymptotic solution is found, corresponding to a linearly chirped parabolic guise which propagates self-similarly subject to simple scaling rules. The solution has been confirmed by numerical simulations and experiments studying propagation in a Yb-doped fiber amplifier. Additional experiments show that the pulses remain parabolic after propagation through standard single mode fiber with normal dispersion.
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