Title: System and method for plasmonic control of short pulses in optical fibers

Abstract

The present disclosure relates to an optical waveguide system. The system has a first waveguide having a core-guide and a cladding material portion surrounding and encasing the core-guide to form a substantially D-shaped cross sectional profile with an exposed flat section running along a length thereof. The core-guide enables a core-guide mode for an optical pulse signal having a first characteristic, travelling through the core-guide. A material layer of non-linear material is used which forms a second waveguide. The material layer is disposed on the exposed flat section of the cladding material portion. The material layer forms a plasmonic device to achieve a desired coupling with the core-guide to couple optical energy travelling through the core-guide into the material layer to modify the optical energy travelling through the core-guide such that the optical energy travelling through the core-guide has a second characteristic different from the first characteristic.

Inventors:

Feigenbaum, Eyal; Allen, Graham S.; Dawson, Jay; Noginov, Mikhail A.

Issue Date:

2022-06-28

Research Org.:

Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1893095

Patent Number(s):

11374378

Application Number:

16/999,714

Assignee:

Lawrence Livermore National Security, LLC (Livermore, CA); Norfolk Southern Railway Co. (Norfolk, VA)

Patent Classifications (CPCs):

G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01S - DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT

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G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS

G02B5/008 - {Surface plasmon devices
G02B6/02061 - {Grating external to the fibre and in contact with the fibre, e.g. evanescently coupled, gratings applied to the fibre end
G02B6/1226 - {involving surface plasmon interaction}
G02B6/29323 - {Coupling to or out of the diffractive element through the lateral surface of the light guide

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01S - DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT

H01S3/06725 - {Fibre characterized by a specific dispersion, e.g. for pulse shaping in soliton lasers or for dispersion compensating [DCF]}
H01S3/06729 - {Peculiar transverse fibre profile}
H01S3/06737 - {Fibre having multiple non-coaxial cores, e.g. multiple active cores or separate cores for pump and gain}
H01S3/0675 - {Resonators including a grating structure, e.g. distributed Bragg reflectors [DBR] or distributed feedback [DFB] fibre lasers}
H01S3/094019 - {Side pumped fibre, whereby pump light is coupled laterally into the fibre via an optical component like a prism, or a grating, or via V-groove coupling}
H01S3/094076 - {Pulsed or modulated pumping
H01S3/0941 - of a laser diode

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DOE Contract Number:  

AC52-07NA27344

Resource Type:

Patent

Resource Relation:

Patent File Date: 08/21/2020

Country of Publication:

United States

Language:

English