Abstract:Abstract:We present the characterization of the in-plane thermal lens in a quasi-four-level Nd:YAG planar waveguide (PW) laser configured for high-radiance operation with an external stable-cavity. Our approach utilises the measurement of the laser's output irradiance distribution at the near-and far-field positions concurrently in order to obtain the "real time" beam propagation parameter and thus beam quality factor, M 2 . Coupled with the knowledge of the intra-cavity-thermallens-dependent beam sizes at an … Show more
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