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Optics Letters

Optics Letters


  • Vol. 21, Iss. 4 — Feb. 15, 1996
  • pp: 266–268

Efficient laser operation with nearly diffraction-limited output from a diode-pumped heavily Nd-doped multimode fiber

U. Griebner, R. Koch, H. Schönnagel, and R. Grunwald  »View Author Affiliations

Optics Letters, Vol. 21, Issue 4, pp. 266-268 (1996)

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Laser performance of a diode-pumped Nd-doped multimode phosphate-glass fiber is reported. The selection of the fundamental mode in a multimode fiber is demonstrated, resulting in laser emission that is close to diffraction limited and that is nearly independent of the pump power. The heavily Nd-doped fibers with core diameters of 100 μm and lengths between 13 and 32 mm deliver as much as 130 mW of cw output power at 1.053 μm. A total efficiency of 31% with respect to launched pump power has been achieved.

© 1996 Optical Society of America

Original Manuscript: October 26, 1995
Published: February 15, 1996

U. Griebner, R. Grunwald, R. Koch, and H. Schönnagel, "Efficient laser operation with nearly diffraction-limited output from a diode-pumped heavily Nd-doped multimode fiber," Opt. Lett. 21, 266-268 (1996)

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