OSA's Digital Library

Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 15 — Jul. 28, 2014
  • pp: 17735–17744

Pseudo-random binary sequence phase modulation for narrow linewidth, kilowatt, monolithic fiber amplifiers

Angel Flores, Craig Robin, Ann Lanari, and Iyad Dajani  »View Author Affiliations


Optics Express, Vol. 22, Issue 15, pp. 17735-17744 (2014)
http://dx.doi.org/10.1364/OE.22.017735


View Full Text Article

Enhanced HTML    Acrobat PDF (942 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We report on pseudo random binary sequence (PRBS) phase modulation for narrow-linewidth, kilowatt-class, monolithic (all-fiber) amplifiers. Stimulated Brillouin scattering (SBS) threshold enhancement factors for different patterns of PRBS modulated fiber amplifiers were experimentally analyzed and agreed well with the theoretical predictions. We also examined seeding of the SBS process by phase modulated signals when the effective linewidth is on the same order as the Brillouin shift frequency. Here ~30% variations in SBS power thresholds were observed from small tunings of the modulation frequency. In addition, a 3 GHz PRBS modulated, 1.17 kW fiber amplifier was demonstrated. Near diffraction-limited beam quality was achieved (M2 = 1.2) with an optical pump efficiency of 83%. Overall, the improved SBS suppression and narrow linewidth achieved through PRBS modulation can have a significant impact on the beam combining of kilowatt class fiber lasers.

© 2014 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(290.5900) Scattering : Scattering, stimulated Brillouin

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: May 8, 2014
Revised Manuscript: June 19, 2014
Manuscript Accepted: June 26, 2014
Published: July 14, 2014

Citation
Angel Flores, Craig Robin, Ann Lanari, and Iyad Dajani, "Pseudo-random binary sequence phase modulation for narrow linewidth, kilowatt, monolithic fiber amplifiers," Opt. Express 22, 17735-17744 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-15-17735


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. F. W. Willems, W. Muys, and J. S. Leong, “Simultaneous suppression of stimulated Brillouin scattering and interferometric noise in externally modulated lightwave AM-SCM systems,” IEEE Photon. Technol. Lett.6(12), 1476–1478 (1994). [CrossRef]
  2. A. Hadjifotou and G. A. Hill, “Suppression of stimulated Brillouin backscattering by PSK modulation for high-power optical transmission,” IEE Proc., Optoelectron.133(4), 256–258 (1986). [CrossRef]
  3. Nufern Product Brief. NukW: Kilowatt laser amplifier platform.
  4. E. C. Honea, R. Afzal, M. P. Savage-Leuchs, N. Gitkind, R. Humphreys, J. Henrie, K. Brar, and D. Jander, “Spectrally beam combined fiber lasers for high power, efficiency, and brightness,” Proc. SPIE8601, 860115 (2013). [CrossRef]
  5. G. D. Goodno, S. J. McNaught, J. E. Rothenberg, T. S. McComb, P. A. Thielen, M. G. Wickham, and M. E. Weber, “Active phase and polarization locking of a 1.4 kW fiber amplifier,” Opt. Lett.35(10), 1542–1544 (2010). [CrossRef] [PubMed]
  6. C. X. Yu, S. J. Augst, S. M. Redmond, K. C. Goldizen, D. V. Murphy, A. Sanchez, and T. Y. Fan, “Coherent combining of a 4 kW, eight-element fiber amplifier array,” Opt. Lett.36(14), 2686–2688 (2011). [CrossRef] [PubMed]
  7. A. Flores, C. Lu, C. Robin, S. Naderi, C. Vergien, and I. Dajani, “Experimental and theoretical studies of phase modulation in Yb-doped fiber amplifiers,” Proc. SPIE8381, 83811B1 (2012).
  8. R. S. Williamson III, “Laser Coherence Control Using Homogeneous Linewidth Broadening,” U.S. Patent No. 7,280,568, Oct. 9 (2007).
  9. C. Zeringue, I. Dajani, S. Naderi, G. T. Moore, and C. A. Robin, “A theoretical study of transient stimulated Brillouin scattering in optical fibers seeded with phase-modulated light,” Opt. Express20(19), 21196–21213 (2012). [CrossRef] [PubMed]
  10. Y. Aoki, K. Tajima, and I. Mito, “Input power limits of single-mode optical fibers due to stimulated Brillouin scattering in optical communication systems,” J. Lightwave Technol.6(5), 710–719 (1988). [CrossRef]
  11. B. Anderson, C. Robin, A. Flores, and I. Dajani, “Experimental study of SBS suppression via white noise phase modulation,” Proc. SPIE8961, 89611W (2014).
  12. C. Zeringue, C. Vergien, and I. Dajani, “Pump-limited, 203 W, single-frequency monolithic fiber amplifier based on laser gain competition,” Opt. Lett.36(5), 618–620 (2011). [CrossRef] [PubMed]
  13. L. Zhang, S. Cui, C. Liu, J. Zhou, and Y. Feng, “170 W, single-frequency, single-mode, linearly-polarized, Yb-doped all-fiber amplifier,” Opt. Express21(5), 5456–5462 (2013). [CrossRef] [PubMed]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited