Aaron Potter

US Patent:

20220252908, Aug 11, 2022

Filed:

Feb 11, 2021

Appl. No.:

17/174197

Inventors:

- Waltham MA, US
Stephen P. Palese - Redondo Beach CA, US
Aaron B. Potter - Torrance CA, US
Thomas R. Yengst - Boise ID, US

International Classification:

G02F 1/01
G01N 21/88

Abstract:

A method includes generating a mixed optical beam using an optical phased array that includes multiple array elements, where each array element includes an antenna element and a phase modulator. The mixed optical beam includes a combination of (i) an output optical beam produced by the optical phased array and (ii) a reference optical beam. The method also includes capturing near-field measurements of the mixed optical beam, where the near-field measurements are captured while scanning phase angles of the phase modulators. The method further includes generating calibration data based on the near-field measurements, where the calibration data identifies phase and amplitude responses of the array elements. In addition, the method includes storing the calibration data.