Invention Grant
- Patent Title: Spatial light structuring using a combination of multiple orthogonal orbital angular momentum beams with complex coefficients
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Application No.: US15990608Application Date: 2018-05-26
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Publication No.: US10914959B2Publication Date: 2021-02-09
- Inventor: Long Li , Cong Liu , Yongxiong Ren , Alan Willner , Guodong Xie , Zhe Zhao
- Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA
- Applicant Address: US CA Los Angeles
- Assignee: UNIVERSITY OF SOUTHERN CALIFORNIA
- Current Assignee: UNIVERSITY OF SOUTHERN CALIFORNIA
- Current Assignee Address: US CA Los Angeles
- Agency: Brooks Kushman P.C.
- Main IPC: G02B27/09
- IPC: G02B27/09 ; G02B27/10 ; H04L5/04 ; G02B26/02 ; G02B26/06

Abstract:
A system for structuring a directed energy beam includes one or more coherent light sources that emit one or more initial light beams, one or more spatial light modulators that modulate the one or more initial light beams, and a beam combiner that coherently adds orbital angular momentum beams to create a reconfigurable spatial region of localized power that forms the directed energy beam. Each spatial light modulator is loaded with a pattern that receives an incident light beam and outputs an orbital angular momentum beam. The pattern encodes one or more orthogonal orbital angular momentum functions. Characteristically, each orbital angular momentum having an associated complex weight with which each orbital angular momentum beam is weighted in forming the coherent addition.
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