Scientific Results

Self imaging configurations for passive global Coherent Laser Beam Combining

Year: 2018

Authors: Lapucci A., Ciofini M.

Autors Affiliation: C.N.R. Istituto Nazionale di Ottica

Abstract: Parallel Laser Beam Combining is widely studied as a mean to overcome the physical limits of single laser sources. It can be obtained by injection coupling of several independent laser resonators. This of course represents a complex dynamical problem, the individual lasers being non-linear oscillators. Stable single phase solutions can be obtained for the entire system of lasers as well as local domains of phase-locked elements or chaotic behaviors. In passive systems the elements locking can be pursued by means of next-neighbor coupling or global feedback. We study self-imaging optical schemes for global feedback Coherent Beam Combining (CBC). We propose guided configurations to overcome edge-losses typical of this approach. Numerical Simulations indicate this as a viable solution for fiber lasers CBC.

Journal/Review:

Volume: 18265509      Pages from: 1  to: 5

KeyWords: Laser arrays, Coherent beam Combinig, Laser
phase locking, Self-imaging, Talbot images.
DOI: 10.1109/CompEng.2018.8536245