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A diode-pumped, integrated erbium fibre ring laser has been mode-locked at frequencies up to 14 GHz using a high speed lithium niobate amplitude modulator. Pulses of 20-30 ps duration have been generated with mean output powers of 75 mW. In addition, the laser could be efficiently tuned over the 1.52-1.57 mu m wavelength region.<<ETX>>
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