We describe and demonstrate an adaptive optical system based on the combination of a micromachined membrane deformable mirror and the stochastic parallel gradient descent control algorithm. This compact and relatively inexpensive adaptive optical system is used to maximize the coupling of a distorted laser beam into a single-mode optical fiber. The coupling efficiency is improved by 12 dB, and the coupling efficiency after correction is 64% of the diffraction-limited coupling efficiency.
© 2001 Optical Society of America
Original Manuscript: January 3, 2000
Revised Manuscript: September 18, 2000
Published: January 20, 2001
Mark L. Plett, Pierre R. Barbier, and David W. Rush, "Compact adaptive optical system based on blind optimization and a micromachined membrane deformable mirror," Appl. Opt. 40, 327-330 (2001)