Lensing effects in Q-switched unstable laser cavities with side-pumped Nd:YAG and ruby crystal rods

Skrabelj, D.; Gorjan, Martin; Drevenšek‐Olenik, Irena; Marinček, Marko

doi:10.1007/s00340-011-4543-y

Cited by 3 publications

(1 citation statement)

References 23 publications

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“…Indeed, it has been shown for specific cases that these population effects can even be stronger than thermal effects in intensively pumped laser crystals [37]. Thus, pump-induced refractive index variations due to Δα p can deeply change the dynamics of fiber lasers and amplifiers [38] or influence the output beam profile in solid-state lasers [39]. It has been demonstrated that these population effects are responsible for the self-Q-switching behavior of a Cr:LiSAF laser [40].…”

Section: Resultsmentioning

confidence: 97%

Transverse pseudo-nonlinear effects measured in solid-state laser materials using a sensitive time-resolved technique

et al. 2012

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We present a detailed study of the Baryscan technique, a new efficient alternative to the widespread Z-scan technique which has been demonstrated [Opt. Lett. 36:8, 2011] to reach among the highest sensitivity levels. This method is based upon the measurement of optical nonlinearities by means of beam centroid displacements with a position sensitive detector and is able to deal with any kind of lensing effect. This technique is applied here to measure pump-induced electronic refractive index changes (population lens), which can be discriminated from parasitic thermal effects by using a time-resolved Baryscan experiment. This method is validated by evaluating the polarizability variation at the origin of the population lens observed in the reference Cr 3+ :GSGG laser material.

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