OSA's Digital Library

Optics Letters

Optics Letters


  • Vol. 36, Iss. 6 — Mar. 15, 2011
  • pp: 999–1001

Active coherent beam combining of diode lasers

Shawn M. Redmond, Kevin J. Creedon, Jan E. Kansky, Steven J. Augst, Leo J. Missaggia, Michael K. Connors, Robin K. Huang, Bien Chann, Tso Yee Fan, George W. Turner, and Antonio Sanchez-Rubio  »View Author Affiliations

Optics Letters, Vol. 36, Issue 6, pp. 999-1001 (2011)

View Full Text Article

Enhanced HTML    Acrobat PDF (443 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



We have demonstrated active coherent beam combination (CBC) of up to 218 semiconductor amplifiers with 38.5 W cw output using up to eleven one-dimensional 21-element individually addressable diode amplifier arrays operating at 960 nm . The amplifier array elements are slab-coupled-optical-waveguide semiconductor amplifiers (SCOWAs) set up in a master-oscillator–power-amplifier configuration. Diffractive optical elements divide the master-oscillator beam to seed multiple arrays of SCOWAs. A SCOWA was phase actuated by adjusting the drive current to each element and controlled using a stochastic-parallel-gradient-descent (SPGD) algorithm for the active CBC. The SPGD is a hill-climbing algorithm that maximizes on-axis intensity in the far field, providing phase locking without needing a reference beam.

© 2011 Optical Society of America

OCIS Codes
(050.1970) Diffraction and gratings : Diffractive optics
(140.2010) Lasers and laser optics : Diode laser arrays
(250.5980) Optoelectronics : Semiconductor optical amplifiers
(140.3298) Lasers and laser optics : Laser beam combining
(110.1080) Imaging systems : Active or adaptive optics

ToC Category:
Lasers and Laser Optics

Original Manuscript: December 22, 2010
Revised Manuscript: February 15, 2011
Manuscript Accepted: February 15, 2011
Published: March 15, 2011

Shawn M. Redmond, Kevin J. Creedon, Jan E. Kansky, Steven J. Augst, Leo J. Missaggia, Michael K. Connors, Robin K. Huang, Bien Chann, Tso Yee Fan, George W. Turner, and Antonio Sanchez-Rubio, "Active coherent beam combining of diode lasers," Opt. Lett. 36, 999-1001 (2011)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. V. Daneu, A. Sanchez, T. Y. Fan, H. K. Choi, G. W. Turner, and C. C. Cook, Opt. Lett. 25, 405 (2000). [CrossRef]
  2. B. Chann, R. K. Huang, L. J. Missaggia, C. T. Harris, Z. L. Liau, A. K. Goyal, J. P. Donnelly, T. Y. Fan, A. Sanchez-Rubio, and G. W. Turner, Opt. Lett. 30, 2104 (2005). [CrossRef] [PubMed]
  3. C. Hamilton, S. Tidwell, D. Meekhof, J. Seamans, N. Gitkind, and D. Lowenthal, Proc. SPIE 5336, 1 (2004). [CrossRef]
  4. J. Levy and K. Roh, Proc. SPIE 2382, 58 (1995). [CrossRef]
  5. L. Bartelt-Berger, U. Brauch, A. Giesen, H. Huegel, and H. Opower, Appl. Opt. 38, 5752 (1999). [CrossRef]
  6. G. Hergenhan, B. Lucke, and U. Brauch, Appl. Opt. 42, 1667 (2003). [CrossRef] [PubMed]
  7. W. Liang, N. Satyan, A. Yariv, A. Kewitsch, G. Rakuljic, F. Aflatouni, H. Hashemi, and J. Ungar, Opt. Express 15, 3201 (2007). [CrossRef] [PubMed]
  8. T. Y. Fan, IEEE J. Sel. Top. Quantum Electron. 11, 567(2005). [CrossRef]
  9. R. K. Huang, B. Chann, L. J. Missaggia, J. P. Donnelly, C. T. Harris, G. W. Turner, A. K. Goyal, T. Y. Fan, and A. Sanchez-Rubio, IEEE Photon. Technol. Lett. 19, 209 (2007). [CrossRef]
  10. M. Vorontsov and V. Sivokon, J. Opt. Soc. Am. A 15, 2745 (1998). [CrossRef]
  11. L. Liu, M. Vorontsov, E. Polnau, T. Weyrauch, and L. Beresnev, Proc. SPIE 6708, 67080K (2007). [CrossRef]
  12. J. E. Kansky, C. X. Yu, D. V. Murphy, S. E. J. Shaw, R. C. Lawrence, and C. Higgs, Proc. SPIE 6306, 63060G(2006). [CrossRef]
  13. T. Y. Fan, IEEE J. Sel. Top. Quantum Electron. 15, 291(2009). [CrossRef]
  14. S. J. Augst, T. Y. Fan, and A. Sanchez-Rubio, Opt. Lett. 29, 474 (2004). [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