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Title: Engineered optical fibers and uses thereof

Patent ·
OSTI ID:1771586

A system comprises an electromagnetic radiation source, a polarizing element, a mode converter, an optical fiber, and a measurement device. The polarizing element receives electromagnetic radiation produced by the electromagnetic radiation source and outputs linearly-polarized electromagnetic radiation having a linear polarization angle θ1. The mode converter converts the linearly-polarized electromagnetic radiation to an orbital angular momentum (OAM) mode of linearly-polarized electromagnetic radiation with topological charge Li. The OAM mode of linearly-polarized electromagnetic radiation is a superposition of first and second OAM modes with topological charges Li and opposite circular polarizations. The optical fiber supports propagation of the first and second OAM modes with an absolute effective index difference Δneff greater than or equal to 5×10−5, such that linearly-polarized electromagnetic radiation with linear polarization angle θ2 is emitted by the optical fiber. The measurement device is configured to determine a property of the electromagnetic radiation based on the polarization angle θ2.

Research Organization:
Boston Univ., MA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
SC0012704
Assignee:
Trustees of Boston University (Boston, MA)
Patent Number(s):
10,823,667
Application Number:
16/866,391
OSTI ID:
1771586
Resource Relation:
Patent File Date: 05/04/2020
Country of Publication:
United States
Language:
English

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