Abstract
Achieving highly coherent high power semiconductor lasers requires the use of spatially stable and high finesse cavities, which are usually realized using commercial dielectric concave mirrors in a concave-type stable cavity; another solution is to use the thermal lens to approach a stable Laguerre-Gauss or Hermite-Gauss laser cavity [1], but this is difficult to control, furthermore it introduces aberrations in the laser beam, moreover the two solutions are very limiting if we want to add some functionalities to the mirror like beam shaping, polarization control…etc
© 2013 IEEE
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