Adaptive Array of Phase-Locked Fiber Collimators: Analysis and Experimental Demonstration

Author(s)

Mikhail Vorontsov, University of DaytonFollow
Thomas Weyrauch, University of DaytonFollow
Leonid A. Beresnev, United States Army Research Laboratory
Gary W. Carhart, United States Army Research Laboratory
Ling Liu, University of Maryland at College Park
Konley Aschenbach, United States Army Research Laboratory

Document Type

Article

Publication Date

1-27-2009

Publication Source

IEEE Journal of Selected Topics in Quantum Electronics

Abstract

Abstract:

We discuss development and integration of a coherent fiber array system composed of densely packed fiber collimators with built-in capabilities for adaptive wavefront phase piston and tilt control at each fiber collimator. In this system, multi-channel fiber-integrated phase shifters are used for phase locking of seven fiber collimators and the precompensation of laboratory-generated turbulence-induced phase aberrations. Controllable x and y displacements of the fiber tips in the fiber collimator array provide additional adaptive compensation of the tip and tilt phase aberration components. An additional control system is utilized for equalization of the intensity of each of the fiber collimator beams. All three control systems are based on the stochastic parallel gradient descent optimization technique. The paper presents the first experimental results of adaptive dynamic phase distortion compensation with an adaptive phase-locked fiber collimator array system.

Inclusive pages

269-280

ISBN/ISSN

1077-260X

Comments

© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Permission documentation on file.

Copyright

Copyright © 2018, IEEE

Publisher

Institute of Electrical and Electronics Engineers

Volume

15

Issue

2

Peer Reviewed

yes

eCommons Citation

Vorontsov, Mikhail; Weyrauch, Thomas; Beresnev, Leonid A.; Carhart, Gary W.; Liu, Ling; and Aschenbach, Konley, "Adaptive Array of Phase-Locked Fiber Collimators: Analysis and Experimental Demonstration" (2009). Electro-Optics and Photonics Faculty Publications. 96.
https://ecommons.udayton.edu/eop_fac_pub/96