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Method and apparatus for wavefront sensing

Patent ·
OSTI ID:1429393
A method for performing optical wavefront sensing includes providing an amplitude transmission mask having a light input side, a light output side, and an optical transmission axis passing from the light input side to the light output side. The amplitude transmission mask is characterized by a checkerboard pattern having a square unit cell of size .LAMBDA.. The method also includes directing an incident light field having a wavelength $$ \lamda $$ to be incident on the light input side and propagating the incident light field through the amplitude transmission mask. The method further includes producing a plurality of diffracted light fields on the light output side and detecting, at a detector disposed a distance L from the amplitude transmission mask, an interferogram associated with the plurality of diffracted light fields.
Research Organization:
RAM Photonics, LLC, San Diego, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC52-08NA28302
Assignee:
RAM Photonics, LLC, San Diego, CA
Patent Number(s):
9,921,111
Application Number:
15/209,535
OSTI ID:
1429393
Country of Publication:
United States
Language:
English

References (4)

Generation and characterization of the highest laser intensities (1022 W/cm2) journal January 2004
A high-resolution, adaptive beam-shaping system for high-power lasers journal January 2010
Highly accurate wavefront reconstruction algorithms over broad spatial-frequency bandwidth journal January 2011
Band-limited wavefront reconstruction with unity frequency response from Shack-Hartmann slopes measurements journal January 2008

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