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Transient thermal lensing measurement in a laser diode pumped NdxY1− xAl3(BO3)4laser using a holographic shearing interferometer

Authors
Journal
Optics Communications
0030-4018
Publisher
Elsevier
Publication Date
Volume
140
Identifiers
DOI: 10.1016/s0030-4018(97)00187-9
Keywords
  • Lasers

Abstract

Abstract A new technique for measuring a thermal lens, using a holographic shearing interferometer is presented. This technique was used to measure transient thermal lensing in a laser diode pumped NYAB laser. The measured thermal lensing power was proportional to the pumping laser diode intensity, with a gradient of 1.1 × 10 −1 m −1 mm 2/W. The transient response time of the thermal lens was 1.5 s, this value being consistent with the temporal decline of the second harmonic power.

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