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High power 938 nanometer fiber laser and amplifier

Patent ·
OSTI ID:908517
 [1];  [2];  [1];  [1];  [3];  [1];  [4];  [5];  [6]
  1. Livermore, CA
  2. Pleasanton, CA
  3. Castro Valley, CA
  4. Munich, DE
  5. Garching, DE
  6. Montauban de Bretagne, FR
+ Show Author Affiliations

An optical fiber amplifier includes a length of silica optical fiber having a core doped with neodymium, a first cladding and a second cladding each with succeeding lower refractive indices, where the first cladding diameter is less than 10 times the diameter of the core. The doping concentration of the neodymium is chosen so that the small signal absorption for 816 nm light traveling within the core is less than 15 dB/m above the other fiber losses. The amplifier is optically pumped with one laser into the fiber core and with another laser into the first cladding.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA
Sponsoring Organization:
United States Department of Energy
DOE Contract Number:
W-7405-ENG-48
Assignee:
The Regents of the University of California (Oakland, CA)
Patent Number(s):
7,038,844
OSTI ID:
908517
Country of Publication:
United States
Language:
English

References (6)

Continuous wave single transverse mode laser oscillation in a Nd-doped large core double clad fiber cavity with concatenated adiabatic tapers journal November 2002
Millijoule femtosecond all-fiber system
  • Galvanauskas, A.; Sartania, Z.; Bischoff, M.
  • CLEO 2001. Technical Digest. Summaries of papers presented at the Conference on Lasers and Electro-Optics. Postconference Technical Digest, Technical Digest. Summaries of papers presented at the Conference on Lasers and Electro-Optics. Postconference Technical Digest (IEEE Cat. No.01CH37170) https://doi.org/10.1109/CLEO.2001.947386
conference January 2001
Experimental study of pump power absorption along rare-earth-doped double clad optical fibres journal April 2003
1 W single-transverse-mode Yb-doped double-clad fibre laser at 978 nm journal January 2001
High-power 938-nm cladding pumped fiber laser conference July 2003
Efficient cladding-pumped Tm-doped silica fibre laser with high power singlemode output at 2 [micro sign]m journal January 2000

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