Mode-locked 2-m wavelength fiber laser using a graphene-saturable absorber
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Soliton-like pulses with a 1984-nm center wavelength are produced from a Tm-doped mode-locked fiber laser. The linear cavity has a graphene saturable absorber mirror at one end and a fiber Bragg grating as the output coupler. The laser operates without dispersion compensation, and the repetition rate was tuned from 20 to 5 MHz by the addition of SMF-28 fiber. The dry transfer process used to place the graphene on a mirror could be extended to any optical substrate. This enables integration of graphene with optics such as an optical window coated with a graphene filter or a graphene-saturable absorber placed directly on a semiconductor laser facet. The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License.
author list (cited authors)
Currie, M., Anderson, T., Wheeler, V., Nyakiti, L. O., Garces, N. Y., Myers-Ward, R. L., ... Gaskill, D. K.