Pulse compression by nonlinear pulse evolution with reduced optical wave breaking in erbium-doped fiber amplifiers
- 1 January 1996
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 21 (1), 68-70
- https://doi.org/10.1364/ol.21.000068
Abstract
Nonlinear pulse evolution is studied for a fiber with normal dispersion (ND) and gain. Numerical simulations show that under certain conditions the pulse evolves into a parabolic shape, which has been shown to reduce optical wave breaking. Much as with the square pulse that forms in passive fibers with ND, the interplay of ND and self-phase modulation creates a highly linear chirp, which can be efficiently compressed. Application to an amplifying fiber/grating (prism) pair pulse compressor is considered, with an experimental demonstration of compression from 350 to 77 fs at a gain of 18 dB in an erbium-doped fiber amplifier.Keywords
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