Abstract
Supercontinuum generation in the long pulse regime in optical fibers is first initiated by modulation instability, which is highly sensitive to noise and gives rise to a large variety of solitonic pulses in terms of width and peak power. The most intense of them experience most efficient Raman self-frequency shift which induces important pulse-to-pulse energy fluctuations at the long-wavelength spectrum edge [1]. We propose here a passive method based on the use of a solid-core photonic bandgap (PBG) fiber, allowing a strong reduction of the long-wavelength edge fluctuations, thanks to a cancellation of the soliton self-frequency shift.
© 2011 Optical Society of America
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