US 12,278,456 B2
Super-mode selective optical unit
Amiel Ishaaya, Ness Ziona (IL); and Yakov Greenberg, Beer Sheva (IL)
Assigned to B.G. NEGEV TECHNOLOGIES AND APPLICATIONS LTD., Beer Sheva (IL)
Appl. No. 18/574,292
Filed by B.G. Negev Technologies and Applications Ltd., Beer Sheva (IL)
PCT Filed Jun. 22, 2022, PCT No. PCT/IB2022/055811
§ 371(c)(1), (2) Date Dec. 26, 2023,
PCT Pub. No. WO2022/269522, PCT Pub. Date Dec. 29, 2022.
Claims priority of provisional application 63/213,761, filed on Jun. 23, 2021.
Prior Publication US 2024/0266796 A1, Aug. 8, 2024
Int. Cl. G02B 6/02 (2006.01); H01S 3/067 (2006.01)
CPC H01S 3/06737 (2013.01) [G02B 6/02042 (2013.01); H01S 3/06733 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A super-mode selective optical unit comprising:
a multicore fiber (MCF) that comprises one or more claddings, and multiple doped fiber cores located within one of the one or more claddings; and
a multimode fiber (MMF) that comprises a first MMF end, a second MMF end, an MMF core and a MMF cladding that surround the core; wherein the first MMF end is configured to receive optical signals from the MCF; wherein the MMF is configured to (a) attenuate in-phase super-mode components of the optical signals of the MCF by having the second MMF end located in proximity to a location of a destructive interference of the in-phase super-mode components of the optical signals of the MCF, and (b) retain out-of-phase components of the optical signals.