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Title: Apparatus and method for enabling quantum-defect-limited conversion efficiency in cladding-pumped Raman fiber lasers

Patent ·
OSTI ID:1325534

Cladding-pumped Raman fiber lasers and amplifiers provide high-efficiency conversion efficiency at high brightness enhancement. Differential loss is applied to both single-pass configurations appropriate for pulsed amplification and laser oscillator configurations applied to high average power cw source generation.

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):
9,450,373
Application Number:
12/718,179
OSTI ID:
1325534
Resource Relation:
Patent File Date: 2010 Mar 05
Country of Publication:
United States
Language:
English

References (18)

Multimode raman fiber amplifier and method patent March 2002
Optical wavelength filtering apparatus with depressed-index claddings patent May 2003
Laser pigtail fiber with inherent attenuation characteristic patent August 2003
L-band optical amplifier based on thulium-doped silica fiber with cut-off patent April 2005
Fiber amplifiers with depressed cladding and their uses in Er-doped fiber amplifiers for the S-band patent June 2005
Suppression of cladding mode loss in fiber amplifiers with distributed suppression of amplified spontaneous emission (ASE) patent November 2005
Three-level air-clad rare-earth doped fiber laser/amplifier patent January 2006
Brightness enhancement of diode light sources patent April 2006
Fiber amplifier system for producing visible light patent May 2006
Optical catheter configurations combining raman spectroscopy with optical fiber-based low coherence reflectometry patent May 2011
Optical device with immediate gain for brightness enhancement of optical pulses patent-application February 2005
High-power continuous-wave cladding-pumped Raman fiber laser journal January 2006
Optimisation of refractive index profile for high gain fibre amplifiers journal January 1990
Cladding-pumped ytterbium-doped large-core fiber laser with 610 W of output power journal April 2004
Suppression of stimulated Raman scattering in a high power Yb-doped fiber amplifier using a W-type core with fundamental mode cut-off journal January 2006
Depressed core Bragg waveguides: experiment and simulation conference January 2004
The Rising Power of Fiber Lasers and Amplifiers journal May 2007
Neodymium-doped cladding-pumped aluminosilicate fiber laser tunable in the 0.9-/spl mu/m wavelength range journal September 2004

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