An efficient beam-combining technique based on aperture filling is introduced to direct virtually all the energy of a mutually coherent laser array to the far-field main lobe. A comparison between this method and the Dammann grating method for beam superposition reveals the connection between the two and suggests specific applications for each.
© 2008 Optical Society of America
Lasers and Laser Optics
Original Manuscript: July 2, 2008
Manuscript Accepted: August 14, 2008
Published: October 14, 2008
M. Khajavikhan, A. Hoyer-Leitzel, and J. R. Leger, "Efficient conversion of light from sparse laser arrays into single-lobed far field using phase structures," Opt. Lett. 33, 2377-2379 (2008)