In situ characterization of semiconductor saturable absorber mirrors used for passive mode-locking

Gabriela Paunescu; Joachim Hein; Roland Sauerbrey; Wolfgang Richter

doi:10.1117/12.624801

14 October 2005 In situ characterization of semiconductor saturable absorber mirrors used for passive mode-locking

Gabriela Paunescu, Joachim Hein, Roland Sauerbrey, Wolfgang Richter

Proceedings Volume 5962, Optical Design and Engineering II; 59620O (2005) https://doi.org/10.1117/12.624801
Event: Optical Systems Design 2005, 2005, Jena, Germany

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.

Citation Download Citation

Gabriela Paunescu, Joachim Hein, Roland Sauerbrey, and 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); https://doi.org/10.1117/12.624801

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