14 October 2005 In situ characterization of semiconductor saturable absorber mirrors used for passive mode-locking
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Abstract
We report the in situ characterization of a semiconductor saturable absorber mirror (SESAM) in an operating Yb:KGW mode-locked laser. The technique may be described as a pump-probe experiment in which the intracavity beam acts as a pump beam, while the output of the same laser is used as a test beam for the SESAM reflectivity. At zero delay, the probe pulse overlaps in time with the subsequent intracavity pulse. The method is an alternative to standard pump-probe measurements, in situations where the intracavity parameters such as energy fluence onto the SESAM, pulse length and center wavelength can not be simultaneously achieved with available lasers.
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Gabriela Paunescu, Joachim Hein, Roland Sauerbrey, Wolfgang Richter, "In situ characterization of semiconductor saturable absorber mirrors used for passive mode-locking", Proc. SPIE 5962, Optical Design and Engineering II, 59620O (14 October 2005); doi: 10.1117/12.624801; https://doi.org/10.1117/12.624801
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