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Title: Engineered optical fibers and uses thereof

Abstract

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.

Inventors:
; ;
Issue Date:
Research Org.:
Boston Univ., MA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1771586
Patent Number(s):
10823667
Application Number:
16/866,391
Assignee:
Trustees of Boston University (Boston, MA)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01J - MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
SC0012704
Resource Type:
Patent
Resource Relation:
Patent File Date: 05/04/2020
Country of Publication:
United States
Language:
English

Citation Formats

Ramachandran, Siddharth, Prabhakar, Gautam, and Peterson-Greenberg, Aaron G. Engineered optical fibers and uses thereof. United States: N. p., 2020. Web.
Ramachandran, Siddharth, Prabhakar, Gautam, & Peterson-Greenberg, Aaron G. Engineered optical fibers and uses thereof. United States.
Ramachandran, Siddharth, Prabhakar, Gautam, and Peterson-Greenberg, Aaron G. Tue . "Engineered optical fibers and uses thereof". United States. https://www.osti.gov/servlets/purl/1771586.
@article{osti_1771586,
title = {Engineered optical fibers and uses thereof},
author = {Ramachandran, Siddharth and Prabhakar, Gautam and Peterson-Greenberg, Aaron G.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {11}
}

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