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1000–1400-nm partially mode-locked pulse from a simple all-fiber cavity

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Abstract

We demonstrate a partially mode-locked pulse laser delivering ultra-wideband optical spectrum, i.e., 1000–1400 nm at 30 dB, from a simple all-fiber short cavity with all-normal dispersion. Examined by both real-time temporal and spectral analyzers, the partially mode-locked pulse exhibits double-scale noise-like characteristics—the fast L-shaped mode-locked pulse modulated by slow free-running Q-switched envelopes. Moreover, the statistical analysis as a function of its optical bandwidth shows that the spectral tuning does not compromise the temporal stability, but affects the pulsing periodicity. It is believed that the wide spectrum of knowledge obtained here would enrich the field of noise-like pulse, such as being beneficial to the rogue wave generation.

© 2015 Optical Society of America

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