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Schematic of the VECSEL. RC high reflector and RC 0.6% output coupler.
Optical spectrum of the laser output. Inset is the rf spectrum of the first 11 harmonics.
Autocorrelation of the pulse train (dots) and Gaussian fit (line), showing a 1.14 times Fourier limited pulse with duration 870 fs.
Calculated GDD of SESAM (dash), GDD from gain (dot), and net GDD per roundtrip (line).
Dependence of pulse duration (dots) and calculated magnitude of residual chirp (dashed line) vs SESAM temperature.
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