Aberrated optics degrade the cavity finesse and point spread function of any optical system. It is frequently overlooked that the phase errors of these aberrations cause characteristic spectral features that can be observed and measured by an optical cavity. A general theory of the spectral decomposition of aberrations is developed and applied to an electrically deformable membrane feeding a high-finesse resonator. The micromirror, which consists of a 1 cm metallized SiNx electrostatically-Actuated membrane with phase offsets of about 1.5μm, leads to optical power being distributed to over twenty higher-order Laguerre-Gaussian cavity modes.
|Original language||English (US)|
|Title of host publication||International Conference on Optical MEMS and Nanophotonics, OMN 2018 - Proceedings|
|Publisher||IEEE Computer Society|
|State||Published - Sep 4 2018|
|Event||23rd International Conference on Optical MEMS and Nanophotonics, OMN 2018 - Lausanne, Switzerland|
Duration: Jul 29 2018 → Aug 2 2018
|Name||International Conference on Optical MEMS and Nanophotonics|
|Other||23rd International Conference on Optical MEMS and Nanophotonics, OMN 2018|
|Period||7/29/18 → 8/2/18|
Bibliographical noteFunding Information:
This work was funded by the Directed Energy Joint Transition Office with the Office of Naval Research, grant N00014-17-1-2438. 1The concept also holds, with small modifications, for non-circular resonators and Hermite-Gaussians.
© 2018 IEEE.
- Gaussian beam mode analysis
- Optical resonators
- microelectromechanical systems