Skip to main content
SpringerLink
Log in

Single-channel Q-switching in a system of coherently combined fiber lasers

  • Published:
Applied Physics B Aims and scope Submit manuscript

Abstract

We experimentally investigate passive interferometric coherent combining of two photonic crystal fiber laser channels within a common cavity, wherein only one channel is Q-switched. We demonstrate an average power of more than 20 W and the peak power of 97 kW with more than 98 % combining efficiency. The measured spectral bandwidth is 0.13 nm, and it does not change at different operation conditions. Our results show efficient imposing of temporal and spectral characteristics of the Q-switched channel on the free-running channel.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5

Similar content being viewed by others

References

  1. J.R. Leger, G.J. Swanson, W.B. Veldkamp, Coherent laser addition using binary phase gratings. Appl. Opt 26, 4391–4399 (1987)

    Article  ADS  Google Scholar 

  2. D. Sabourdy, A. Desfarges-Berthelemot, V. Kermene, A. Barthélémy, Coherent combining of Q-switched fibre lasers. Electron. Lett 40, 1254–1255 (2004)

    Article  Google Scholar 

  3. T. Fan, Laser beam combining for high-power, high-radiance sources. IEEE J. Sel. Top. Quantum Electron 11, 567–577 (2005)

    Article  Google Scholar 

  4. A.A. Ishaaya, N. Davidson, A. Friesem, Passive laser beam combining with intracavity interferometric combiners. IEEE J. Sel. Top. Quantum Electron 15, 301–311 (2009)

    Article  Google Scholar 

  5. J. Bourderionnet, C. Bellanger, J. Primot, A. Brignon, Collective coherent phase combining of 64 fibers. Opt. Express 19, 17053–17058 (2011)

    Article  ADS  Google Scholar 

  6. D. Kouznetsov, J. Bisson, A. Shirakawa, K. Ueda, Limits of coherent addition of lasers: simple estimate. Opt. Rev 12(6), 445–447 (2005)

    Article  Google Scholar 

  7. J. Guillot, A. Desfarges-Berthelemot, V. Kermène, A. Barthélémy, Experimental study of cophasing dynamics in passive coherent combining of fiber lasers. Opt. Lett 36, 2907–2909 (2011)

    Article  ADS  Google Scholar 

  8. B. Rosenstein, A. Shirakov, D. Belker, A.A. Ishaaya, 0.7 MW output power from a two-arm coherently combined Q-switched photonic crystal fiber laser. Opt. Express 22, 6416–6421 (2014)

    Article  ADS  Google Scholar 

  9. A. Kozlov, J. Hernandez-Cordero, T.F. Morse, All-fiber coherent beam combining of fiber lasers. Opt. Lett 24, 1814 (1999)

    Article  ADS  Google Scholar 

  10. J. Bromage, J. Fini, C. Dorrer, J. Zuegel, Characterization and optimization of Yb-doped photonic-crystal fiber rod amplifiers using spatially resolved spectral interferometry. Appl. Opt 50, 2001–2007 (2011)

    Article  ADS  Google Scholar 

  11. W. Koechner, Solid-state laser engineering (Springer Verlag, 2006)

Download references

Author information

Authors and Affiliations

  1. Department of Electrical and Computer Engineering, Ben-Gurion University of the Negev, 84105, Beer-Sheva, Israel

    Boris Rosenstein, Avry Shirakov, Daniel Belker & Amiel A. Ishaaya

  2. Department of Physics, Ben-Gurion University of the Negev, 84105, Beer-Sheva, Israel

    Avry Shirakov

Authors
  1. Boris Rosenstein
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Avry Shirakov
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Daniel Belker
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Amiel A. Ishaaya
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Boris Rosenstein.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Rosenstein, B., Shirakov, A., Belker, D. et al. Single-channel Q-switching in a system of coherently combined fiber lasers. Appl. Phys. B 117, 995–999 (2014). https://doi.org/10.1007/s00340-014-5919-6

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00340-014-5919-6

Keywords

Search

Navigation