An all fiber based Talbot self-imaging mirror device for phase-locking of a multi-fiber laser

R. Zhou; Q. Zhan; P. E. Powers; B. Ibarra-Escamilla; J. W. Haus

doi:10.2971/jeos.2012.12012

Journal of the European Optical Society - Rapid publications, Vol 7 (2012)

An all fiber based Talbot self-imaging mirror device for phase-locking of a multi-fiber laser

R. Zhou, Q. Zhan, P. E. Powers, B. Ibarra-Escamilla, J. W. Haus

Abstract

By propagating beamlets from a periodically placed array of single-mode fiber amplifiers in a large mode-are (LMA) fiber, we find that a self-image of the initial beamlets is formed at certain distances in the LMA fiber. A Talbot mirror fiber device (TMFD) based on this property is proposed for phase-locking of a multi-fiber laser. For this laser system, we investigate how the LMA fiber length variation; the fiber amplifier phase variation, amplitude variation, and displacement affect the self-image qualities and the coupling efficiency.

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