Response analysis of holography-based modal wavefront sensor.
Appl Opt
; 51(9): 1318-27, 2012 Mar 20.
Article
en En
| MEDLINE
| ID: mdl-22441478
ABSTRACT
The crosstalk problem of holography-based modal wavefront sensing (HMWS) becomes more severe with increasing aberration. In this paper, crosstalk effects on the sensor response are analyzed statistically for typical aberrations due to atmospheric turbulence. For specific turbulence strength, we optimized the sensor by adjusting the detector radius and the encoded phase bias for each Zernike mode. Calibrated response curves of low-order Zernike modes were further utilized to improve the sensor accuracy. The simulation results validated our strategy. The number of iterations for obtaining a residual RMS wavefront error of 0.1λ is reduced from 18 to 3.
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1
Colección:
01-internacional
Banco de datos:
MEDLINE
Idioma:
En
Revista:
Appl Opt
Año:
2012
Tipo del documento:
Article
País de afiliación:
Alemania