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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 15 — May. 20, 2011
  • pp: 2239–2245

Arbitrary phasing technique for two-dimensional coherent laser array based on an active segmented mirror

Yi Zheng, Xiaohua Wang, Li Deng, Feng Shen, and Xinyang Li  »View Author Affiliations


Applied Optics, Vol. 50, Issue 15, pp. 2239-2245 (2011)
http://dx.doi.org/10.1364/AO.50.002239


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Abstract

We introduce a novel (to the best of our knowledge) phasing technique for a coherent laser array. We have accomplished arbitrary phasing in the interval 0 π . A seven-channel laser array experiment is built for verification. A custom-made beam arraying structure is designed to arrange beamlets into a two- dimensional hexagonal array. In the phase-locking loop, the wavefront sensing is performed interferometrically. An active segmented mirror is used for phasing, and the control signals are generated by the proportional control algorithm. In experiment, all the beamlets have been properly phased, and the experiment of inertia-free beam steering has been accomplished.

© 2011 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(050.5080) Diffraction and gratings : Phase shift
(140.3290) Lasers and laser optics : Laser arrays

ToC Category:
Atmospheric and Oceanic Optics

History
Original Manuscript: November 9, 2010
Revised Manuscript: April 8, 2011
Manuscript Accepted: April 15, 2011
Published: May 18, 2011

Citation
Yi Zheng, Xiaohua Wang, Li Deng, Feng Shen, and Xinyang Li, "Arbitrary phasing technique for two-dimensional coherent laser array based on an active segmented mirror," Appl. Opt. 50, 2239-2245 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-15-2239

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