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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 25 — Dec. 12, 2005
  • pp: 10302–10309

Q-switching of Yb3+-doped fiber laser using a novel micro-optical waveguide on micro-actuating platform light modulator

Yunsong Joeng, Youngbok Kim, Andreas Liem, Klaus Moerl, Sven Hoefer, Andreas Tuennermann, and Kyunghwan Oh  »View Author Affiliations

Optics Express, Vol. 13, Issue 25, pp. 10302-10309 (2005)

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We report a novel micro-optical waveguide (MOW) on micro-actuating platform (MAP) light modulator for Q-switched all-fiber laser applications. The light modulator employs a fused biconical taper (FBT) coupler, which acts as MOW, mounted on an electromechanical system, MAP, where an axial stress over the waist of FBT coupler is precisely controlled to result in modulation of output power. The modulator was implemented in a clad pumped Yb3+-doped fiber laser cavity as a Q-switching element. Q-switching was successfully achieved at the repetition rate of 18.6kHz and average pulse energy of 1.4μJ. The proposed structure can be readily applied in power scaling up of all-fiber Q-switching laser systems.

© 2005 Optical Society of America

OCIS Codes
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(060.4080) Fiber optics and optical communications : Modulation
(140.3540) Lasers and laser optics : Lasers, Q-switched
(230.3990) Optical devices : Micro-optical devices
(230.4110) Optical devices : Modulators

ToC Category:
Research Papers

Yunsong Joeng, Youngbok Kim, Andreas Liem, Klaus Moerl, Sven Hoefer, Andreas Tuennermann, and Kyunghwan Oh, "Q-switching of Yb3+-doped fiber laser using a novel micro-optical waveguide on microactuating platform light modulator," Opt. Express 13, 10302-10309 (2005)

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