High-energy ultrashort-pulse all-fiber erbium-doped ring laser with improved free-running performance
2018
We report on stable stretched-pulse generation with a pulse duration (at FWHM) ∼180 fs at a central wavelength of 1560 nm with an average output power of 30 mW at a repetition rate of ∼11.3 MHz (with the signal-to-noise ratio at a fundamental frequency ∼59 dB) with an Allan deviation of a pulse repetition frequency of ∼5.75·10−9 for a 1 s interval and a relative intensity noise of <−101 dBc/Hz<−101 dBc/Hz (30–1000 kHz). This corresponds to a <14.7 kW maximum peak power and a <2.6 nJ maximum available pulse energy obtained immediately from the highly nonlinear all-fiber laser resonator.
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