Affiliation:
1. Shenzhen Technology University
2. Han’s Laser Technology Industry Group Co.
Abstract
We experimentally investigate the generation of h-shaped pulse in an all-polarization-maintaining (PM) and all-normal-dispersion (ANDi) mode-locked fiber laser. The generated pulse is demonstrated to be a unitary pulse, instead of a noise-like pulse (NLP). Furthermore, by employing an external filtering system, the obtained h-shaped pulse can be resolved into rectangular-shaped pulses, chair-like pulses, and Gaussian pulses. The authentic AC traces with a double-scale structure of unitary h-shaped pulses and chair-like pulses are observed on the autocorrelator. The chirp of h-shaped pulses is also proved similar to that of DSR pulses. To the best of our knowledge, this is the first time that the existence of unitary h-shaped pulse generation has been confirmed. Moreover, our experimental results reveal the close relationship of formation mechanisms of dissipative soliton resonance (DSR) pulses, h-shaped pulses, and chair-like pulses, which helps to unify the essences of such “DSR-like” pulses.
Funder
National Key Research and Development Program of China
National Natural Science Foundation of China
Basic and Applied Basic Research Foundation of Guangdong Province
Shenzhen Science and Technology Innovation Program
Subject
Atomic and Molecular Physics, and Optics
Cited by
1 articles.
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