Abstract
We experimentally demonstrate cascaded Raman scattering continuum generation at 1.0–1.3 μm with pulse energy of 47 nJ by utilizing a commercially available all-normal-dispersion single-mode fiber (SMF) with a low threshold pump power. We achieve passively mode-locked all-fiber lasing by nonlinear polarization rotation technique. Continuous Raman gain is obtained by the same SMF in every roundtrip because of the ring-cavity configuration, which makes it possible to achieve high-order Raman Stokes waves by a short fiber length. Limited by the pump power, the maximum output average power and peak power are 87.4 and 339 mW, but it has great potential to be improved. These make it an ideal continuum source for many applications, such as optical coherence tomography.
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This work was financially supported by the Projects of Scientific Research Foundation of National University of Defense Technology (Grant NO. JC12-07-03).
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Yu, H., Wang, X., Zhou, P. et al. Raman continuum generation at 1.0–1.3 μm in passively mode-locked fiber laser based on nonlinear polarization rotation. Appl. Phys. B 117, 305–309 (2014). https://doi.org/10.1007/s00340-014-5836-8
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DOI: https://doi.org/10.1007/s00340-014-5836-8