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Optics Letters

Optics Letters


  • Vol. 23, Iss. 5 — Mar. 1, 1998
  • pp: 355–357

Ring-doped cladding-pumped single-mode three-level fiber laser

J. Nilsson, J. D. Minelly, R. Paschotta, A. C. Tropper, and D. C. Hanna  »View Author Affiliations

Optics Letters, Vol. 23, Issue 5, pp. 355-357 (1998)

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We propose and theoretically analyze three-level cladding-pumped fiber lasers in which the laser-active dopant is placed in a ring around a single-mode core. A ring-doped laser can work efficiently at wavelengths with strong small-signal absorption. This is otherwise difficult in a cladding-pumped fiber. Moreover, ring doping makes the laser less sensitive to quenching of the laser-active dopant and to excited-state absorption of the lasing field. In simulations of a Yb3+ -doped fiber laser, ring doping increased the slope efficiency to 62%, up from 13% for a conventional core-doped fiber.

© 1998 Optical Society of America

OCIS Codes
(140.3510) Lasers and laser optics : Lasers, fiber
(140.3560) Lasers and laser optics : Lasers, ring

J. Nilsson, J. D. Minelly, R. Paschotta, A. C. Tropper, and D. C. Hanna, "Ring-doped cladding-pumped single-mode three-level fiber laser," Opt. Lett. 23, 355-357 (1998)

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