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Optics Letters

Optics Letters


  • Vol. 30, Iss. 1 — Jan. 1, 2005
  • pp: 67–69

60-W green output by frequency doubling of a polarized Yb-doped fiber laser

Anping Liu, Marc A. Norsen, and Roy D. Mead  »View Author Affiliations

Optics Letters, Vol. 30, Issue 1, pp. 67-69 (2005)

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The frequency doubling of a 110-W linearly polarized diffraction-limited Yb-doped fiber oscillator power amplifier (FOPA) has generated 60-W near-diffraction-limited M^2 < or = 1.33 linearly polarized green output. The FOPA produces as much as 2.4kW of peak power and less than 20-pm linewidth at a 10-MHz repetition rate and 5-ns pulse duration without the onset of nonlinear effects. With two lithium triborate crystals at noncritical phase matching, a maximum of 54.5% doubling efficiency has been demonstrated. The overall electrical efficiency to the green portion of the spectrum is 10%.

© 2005 Optical Society of America

OCIS Codes
(140.3280) Lasers and laser optics : Laser amplifiers
(140.3510) Lasers and laser optics : Lasers, fiber
(140.4480) Lasers and laser optics : Optical amplifiers
(190.2620) Nonlinear optics : Harmonic generation and mixing

Anping Liu, Marc A. Norsen, and Roy D. Mead, "60-W green output by frequency doubling of a polarized Yb-doped fiber laser," Opt. Lett. 30, 67-69 (2005)

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