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Practical low-noise stretched-pulse Yb3+ doped fiber laser

By L. Lefort, J.H.V. Price, D.J. Richardson, G.J. Spuhler, R. Paschotta, U. Keller, A.R. Fry and J. Weston


We report on the development of what we consider to be a practical and highly stable stretched-pulse laser based on Yb 3+ -doped silica fiber. The Fabry Perot cavity uses nonlinear polarization rotation as the mode-locking mechanism, and a semiconductor saturable-absorber mirror to ensure robust self-starting and incorporates a diffraction grating pair to compensate for the normal dispersion of the fiber. Use of a single-mode grating-stabilized telecommunications-qualified pump laser diode ensures reliable, low-noise operation ( 0.05 amplitude fluctuations at 10-Hz measurement bandwidth). The laser generates high-quality, 60-pJ pulses of 110 fs duration at a repetition rate of 54 MHz (3-mW average power)

Topics: QC, TK
Year: 2002
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Provided by: e-Prints Soton

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