Patent ID: 11956014
Assignee: UNIVERSITA' DEGLI STUDI DI MILANO
Field: Telecommunications (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 16:
17. The method according to claim 13, wherein the first electromagnetic radiation beam (F1) and the at least one second electromagnetic radiation beam (F2) are digitally angular momentum modulated, wherein the angular momentum of the first beam (F1) takes two different discrete values based on a first modulation function a(t) and the angular momentum of the at least one second beam (F2) takes two different discrete values based on at least one respective second modulation function b(t),
and wherein the difference value (Q2=ΔPab/k−ΔR/k′) may take a plurality of expected values, each representative of a respective combination of digital amplitude values taken by the first modulation function a(t) and the at least one second modulation function b(t).