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Bandwidth-limited time-synchronized frequency tunable double pulse generation in a branched picosecond Nd: glass laser

Abstract

Nearly bandwidth-limited, time-synchronized, frequency tunable picosecond pulses are generated in an active and passive mode-locked laser consisting of an Nd: silicate glass and an Nd: phosphate glass branch and a common antiresonant ring. An electro-optic Q-switch, an acousto-optic modulator and a saturable absorber in the antiresonant ring are responsible for mode locking and time synchronization. Three-plate birefringent filters in the gain branches are used for spectral narrowing (pulse duration broadening) and wavelength tuning. Pulses of 40 ps duration with a synchronization jitter of 10 ps are generated. A frequency tuning range from 0 to 350 cm-1 is achieved.

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Steinkellner, O., Furthner, J. & Penzkofer, A. Bandwidth-limited time-synchronized frequency tunable double pulse generation in a branched picosecond Nd: glass laser. Opt Quant Electron 28, 1773–1780 (1996). https://doi.org/10.1007/BF00698543

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Keywords

  • Tuning Range
  • Phosphate Glass
  • Time Synchronization
  • Saturable Absorber
  • Frequency Tuning