skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Raman beam combining for laser brightness enhancement

Patent ·
OSTI ID:1224423
; ; ; ; ; ;

An optical source capable of enhanced scaling of pulse energy and brightness utilizes an ensemble of single-aperture fiber lasers as pump sources, with each such fiber laser operating at acceptable pulse energy levels. Beam combining involves stimulated Raman scattering using a Stokes' shifted seed beam, the latter of which is optimized in terms of its temporal and spectral properties. Beams from fiber lasers can thus be combined to attain pulses with peak energies in excess of the fiber laser self-focusing limit of 4 MW while retaining the advantages of a fiber laser system of high average power with good beam quality.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-07NA27344
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Number(s):
9,172,208
Application Number:
13/771,770
OSTI ID:
1224423
Resource Relation:
Patent File Date: 2013 Feb 20
Country of Publication:
United States
Language:
English

References (9)

Positron source position sensing detector and electronics patent July 1985
Broad band crossed-beam raman amplifier patent May 1990
Broadband raman beam combiner patent February 1991
Fiber raman amplifier pumped by an incoherently beam combined diode laser patent September 2002
Athermal optical components patent March 2005
Optical gain fiber having segments of differing core sizes and associated method patent June 2012
Laser Tweezers and Raman Spectroscopy Systems and Methods for the Study of Microscopic Particles patent-application January 2004
Advances in Photochemistry book January 1990
All-optical slow-light on a photonic chip journal January 2006

Similar Records

Status of the "ARC", a Quad of High-Intensity Beam Lines at the National Ignition Facility
Conference · Wed Jun 21 00:00:00 EDT 2006 · OSTI ID:1224423
+25 more
High-brightness electron injectors: A review
Conference · Sun Jan 01 00:00:00 EST 1989 · OSTI ID:1224423
The dynamics of pulse compression in synchronously pumped fiber Raman lasers
Journal Article · Sun Jul 01 00:00:00 EDT 1990 · IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (USA) · OSTI ID:1224423

Related Subjects

43 PARTICLE ACCELERATORS