Excess-noise dependence on intracavity aperture shape
Karman, GP, Mcdonald, GS, Woerdman, JP and New, GHC 1999, 'Excess-noise dependence on intracavity aperture shape' , Applied Optics, 38 (33) , pp. 6874-6878.
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In lasers with nonorthogonal eigenmodes the excess-noise factor K can be large, especially in unstable-cavity lasers with hard-edged intracavity apertures. To the best of our knowledge, we report the first detailed study of the dependence of K on aperture shape. Calculations and measurements of K for unstable-cavity lasers with variable-size apertures of triangular, square, pentagonal, hexagonal, octagonal, and rhomboid symmetries are summarized. It is shown that both the magnitude of K and its resonant behavior strongly depend on aperture shape and that many aspects of this dependence can be explained in terms of one-dimensional resonance lengths.
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|Schools:||Colleges and Schools > College of Science & Technology > School of Computing, Science and Engineering > Materials & Physics Research Centre|
|Journal or Publication Title:||Applied Optics|
|Publisher:||Optical Society of America|
|Depositing User:||GS McDonald|
|Date Deposited:||14 Oct 2011 11:04|
|Last Modified:||14 Oct 2011 11:04|
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