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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 10, Iss. 21 — Oct. 21, 2002
  • pp: 1167–1172

Optics InfoBase > Optics Express > Volume 10 > Issue 21 > Coherent addition of fiber lasers by use of a fiber coupler

Coherent addition of fiber lasers by use of a fiber coupler

Akira Shirakawa, Tomoharu Saitou, Tomoki Sekiguchi, and Ken-ichi Ueda  »View Author Affiliations

Optics Express, Vol. 10, Issue 21, pp. 1167-1172 (2002)

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Coherent addition of fiber lasers coupled with an intracavity fiber coupler is reported. Almost a single output is obtained from one of the fiber ports, which one can switch simply by unbalancing the losses in the ports. We show that the constructive supermodes, each of which has a single output in a different port, build up automatically because of the dense longitudinal-mode, length-unbalanced laser array with unbalanced port loss. High addition efficiencies of 93.6% for two fiber lasers and 95.6% for four fiber lasers have been obtained.

© 2002 Optical Society of America

OCIS Codes
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(140.3290) Lasers and laser optics : Laser arrays
(140.3410) Lasers and laser optics : Laser resonators
(140.3510) Lasers and laser optics : Lasers, fiber

ToC Category:
Research Papers

Original Manuscript: September 23, 2002
Revised Manuscript: October 3, 2002
Published: October 21, 2002

Akira Shirakawa, Tomoharu Saitou, Tomoki Sekiguchi, and Ken-ichi Ueda, "Coherent addition of fiber lasers by use of a fiber coupler," Opt. Express 10, 1167-1172 (2002)

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