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Title: Stable, narrow spectral linewidth, fiber-delivered laser source for spin exchange optical pumping

Abstract

Disclosed herein are example embodiments for providing high power, narrow linewidth, high-stability laser sources. Particular embodiments are adapted for use in spin exchange optical pumping (SEOP). One example system comprises an array of laser diodes; a beam twister positioned to receive individual beamlets from the array of laser diodes, the beam twister being configured to rotate the individual beamlets from the array of laser diodes and produce rotated beamlets; one or more collimating lenses positioned to receive the rotated beamlets produced by the beam twister and produce substantially collimated beamlets having a divergence angle; a spectral-line-width-reducing element positioned to receive the substantially collimated beamlets from the one or more collimating lenses and produce spectral-line-width-reduced beamlets; an optical fiber; and one or more focusing lenses positioned between the optical fiber and the spectral-line-width-reducing element and configured to receive the spectral-line-width-reduced beamlets and focus them into the optical fiber.

Inventors:
; ; ;
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1493611
Patent Number(s):
10126558
Application Number:
14/992,649
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
Patent Classifications (CPCs):
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
G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
DOE Contract Number:  
AC05-000R22725
Resource Type:
Patent
Resource Relation:
Patent File Date: 2016 Jan 11
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Liu, Bo, Tong, Xin, Jiang, Chenyang, and Robertson, Lee. Stable, narrow spectral linewidth, fiber-delivered laser source for spin exchange optical pumping. United States: N. p., 2018. Web.
Liu, Bo, Tong, Xin, Jiang, Chenyang, & Robertson, Lee. Stable, narrow spectral linewidth, fiber-delivered laser source for spin exchange optical pumping. United States.
Liu, Bo, Tong, Xin, Jiang, Chenyang, and Robertson, Lee. Tue . "Stable, narrow spectral linewidth, fiber-delivered laser source for spin exchange optical pumping". United States. https://www.osti.gov/servlets/purl/1493611.
@article{osti_1493611,
title = {Stable, narrow spectral linewidth, fiber-delivered laser source for spin exchange optical pumping},
author = {Liu, Bo and Tong, Xin and Jiang, Chenyang and Robertson, Lee},
abstractNote = {Disclosed herein are example embodiments for providing high power, narrow linewidth, high-stability laser sources. Particular embodiments are adapted for use in spin exchange optical pumping (SEOP). One example system comprises an array of laser diodes; a beam twister positioned to receive individual beamlets from the array of laser diodes, the beam twister being configured to rotate the individual beamlets from the array of laser diodes and produce rotated beamlets; one or more collimating lenses positioned to receive the rotated beamlets produced by the beam twister and produce substantially collimated beamlets having a divergence angle; a spectral-line-width-reducing element positioned to receive the substantially collimated beamlets from the one or more collimating lenses and produce spectral-line-width-reduced beamlets; an optical fiber; and one or more focusing lenses positioned between the optical fiber and the spectral-line-width-reducing element and configured to receive the spectral-line-width-reduced beamlets and focus them into the optical fiber.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {11}
}

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Works referenced in this record:

Polarized 3He Neutron Spin Filters at Oak Ridge National Laboratory
journal, January 2013


Energy Transport in High-Density Spin-Exchange Optical Pumping Cells
journal, April 2001


Breakdown of Angular Momentum Selection Rules in High Pressure Optical Pumping Experiments
journal, August 2010


In situ polarized 3 He system for the Magnetism Reflectometer at the Spallation Neutron Source
journal, July 2012