Light steering using an array of tunable phase delay elements

Details Light steering using an array of tunable phase delay elements Light steering using an array of tunable phase delay elements

2008-08-12

2009-12-01

Petkovsek, Daniel (Department: 2874)

Optical: systems and elements

Optical demodulator

C359S872000, C359S877000, C385S016000, C385S017000, C385S020000, C342S368000, C342S374000, C342S375000

Reexamination Certificate

active

07626754

ABSTRACT:
An apparatus and method for steering a beam of light using an array of tunable optical phase delay elements is presented. The sidelobes of an angular spectrum of light reflected from the array are causing an optical crosstalk. The selected sidelobes are suppressed by perturbing the phase delay pattern of the array elements. The pattern of perturbations is found by linearizing a system of equations describing dependence of the angular spectrum of the reflected light on the phase delays introduced into the wavefront of light by the elements of the array.

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