Using a Volume Bragg Grating Instead of a Faraday Isolator in Lasers Incorporating Stimulated Brillouin Scattering Wavefront Reversal or Beam Cleanup

Using a Volume Bragg Grating Instead of a Faraday Isolator in Lasers Incorporating Stimulated Brillouin Scattering Wavefront Reversal or Beam Cleanup

A master-oscillator power-amplifier with stimulated Brillouin scattering (SBS) beam cleanup or wavefront reversal typically incorporates a Faraday isolator to outcouple the Stokes light, limiting the power scalability. Volume Bragg gratings (VBGs) have the potential for scaling to higher powers. We...

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Bibliographische Detailangaben
Hauptverfasser: McElhenny, John E, White, Jeffrey O, Rogers, Steven D, Sanamyan, Tigran, Glebov, Leonid B, Mokhun, Oleksiy, Smirnov, Vadim I
Format: Report
Sprache:eng
Schlagworte:
AMPLIFIERS
BACKSCATTERING
BRAGG REFLECTORS. MOPA(MASTER-OSCILLATOR POWER-AMPLIFIER)
BRAGG SCATTERING
BRILLOUIN SCATTERING
BRILLOUIN ZONES
CLEANING
Crystallography
FARADAY EFFECT
FIBERS
Fluid Mechanics
GRATINGS(SPECTRA)
ISOLATION
LIGHT SCATTERING
NAVIER STOKES EQUATIONS
PHONONS
POLARIZATION
SCALING FACTOR
Solid State Physics
STIMULATED BRILLOUIN
STIMULATION(GENERAL)
VOLUME BRAGG GRATINGS
WAVEFRONTS
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Zusammenfassung:A master-oscillator power-amplifier with stimulated Brillouin scattering (SBS) beam cleanup or wavefront reversal typically incorporates a Faraday isolator to outcouple the Stokes light, limiting the power scalability. Volume Bragg gratings (VBGs) have the potential for scaling to higher powers. We report here the results of tests on a VBG designed to resolve wavelengths 0.060 nm apart, corresponding to the 16 GHz frequency shift for SBS backscattering at 1064 nm in fused silica. Such an element may also find use in between stages of fiber amplifiers, for blocking the Stokes wave. Pub. in Optics Express, v19 n18, p168850-16889, 229 Aug 2011.