All-fiber phase actuator based on an erbium-doped fiber amplifier for coherent beam combining at 1064 nm

Active phase control in fiber amplifiers is of considerable interest for low-noise single-frequency amplifiers and for coherent beam combining. We demonstrate phase control at 1064 nm by use of an erbium-doped fiber. We investigated the phase shift by guiding the beam through an erbium-doped fiber a...

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Bibliographic Details
Published in:Optics letters 2011-02, Vol.36 (4), p.448-450
Main Authors: TÜNNERMANN, Henrik, NEUMANN, Jörg, KRACHT, Dietmar, WESSELS, Peter
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
General equipment and techniques
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Optics
Physics
Sensors (chemical, optical, electrical, movement, gas, etc.)
remote sensing
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Summary:Active phase control in fiber amplifiers is of considerable interest for low-noise single-frequency amplifiers and for coherent beam combining. We demonstrate phase control at 1064 nm by use of an erbium-doped fiber. We investigated the phase shift by guiding the beam through an erbium-doped fiber amplifier in a Mach-Zehnder configuration and applied the results to stabilize the relative phase of two ytterbium-doped fiber amplifiers. To the best of our knowledge, this is the first demonstration of an all-fiber coherent beam combining at 1064 nm employing an erbium-doped fiber as a phase actuator.
ISSN:0146-9592
1539-4794
DOI:10.1364/ol.36.000448