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Proceedings Paper

Cavity design of laterally coupled all-solid state laser arrays with Talbot effect
Author(s): Yuko Kono; Masahiro Takeoka; Atsushi Uchida; Fumihiko Kannari
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Paper Abstract

Brighter far-field pattern of a phase-locked Nd:YAG microchip laser array was obtained by the Talbot effect in a three-mirror cavity. The laterally coupled Nd:YAG microchip laser array produced a pair of spots with sharper peaks with an angular separation of (lambda) /d in its far-field, where d is the distance between the adjacent sources, indicating an out-of-phase spatial mode coupling was improved. The far- field spot size is reduced by a factor of 9.3 compared with that obtained by incoherent pile of the individual microchip laser outputs. We demonstrated that the far-field pattern is improved by enhancing the self-imaging with side mirrors which make the array source disguise an infinity. A mode selecting slit placed right after the crystal is also effective to stabilize the out-of-phase mode.

Paper Details

Date Published: 24 May 1999
PDF: 8 pages
Proc. SPIE 3611, Laser Resonators II, (24 May 1999); doi: 10.1117/12.349245
Show Author Affiliations
Yuko Kono, Keio Univ. (Japan)
Masahiro Takeoka, Keio Univ. (Japan)
Atsushi Uchida, Keio Univ. (Japan)
Fumihiko Kannari, Keio Univ. (Japan)

Published in SPIE Proceedings Vol. 3611:
Laser Resonators II
Alexis V. Kudryashov, Editor(s)

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