Q-switching of Yb-doped double-clad fiber laser using micro-optical waveguide on micro-actuating platform modulator for marking applications

Yunsong Jeong, Andreas Liem, Klaus Mörl, Sven Höfer, Youngbok Kim, Andreas Tünnermann, Kyunghwan Oh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A Q-switched all-fiber laser application based on a novel micro-optical waveguide (MOW) on micro-actuating platform (MAP) light modulator is presented. A fused biconical taper (FBT) coupler acts as MOW, mounted on an electromechanical system, MAP, where an axial stress over the waist of FBT coupler is precisely controlled. The axial stress induced refractive index changes caused the coupling efficiency to result in modulation of optical power. The light modulator was implemented in a laser cavity as a Q-switching element. Q-switching of Yb3+-doped fiber laser was successfully achieved with the peak power of 192mW at 4.1W pump power and 699mW at 5.2W at the repetition rate of 18.6kHz. Further optimization of switching speed and modulation depth could improve the pulse extraction efficiency and the proposed structure can be readily applied in all-fiber Q-switching laser systems for marking applications.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
DOIs
Publication statusPublished - 2006 May 1
EventFiber Lasers III: Technology, Systems, and Applications - San Jose, CA, United States
Duration: 2006 Jan 232006 Jan 26

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6102
ISSN (Print)0277-786X

Other

OtherFiber Lasers III: Technology, Systems, and Applications
CountryUnited States
CitySan Jose, CA
Period06/1/2306/1/26

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Jeong, Y., Liem, A., Mörl, K., Höfer, S., Kim, Y., Tünnermann, A., & Oh, K. (2006). Q-switching of Yb-doped double-clad fiber laser using micro-optical waveguide on micro-actuating platform modulator for marking applications. In Proceedings of SPIE - The International Society for Optical Engineering [61021K] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6102). https://doi.org/10.1117/12.659687