A coherent all-solid-state laser array using the Talbot effect in a three-mirror cavity

Lateral mode coupling in a diode-pumped Nd:YAG microchip laser array is demonstrated with a Talbot cavity for the first time. The relatively low laser gains of solid-state lasers compared with diode lasers and CO/sub 2/ lasers, to which the Talbot cavity has already been applied successfully, are so...

Full description

Saved in:
Bibliographic Details
Published in:IEEE journal of quantum electronics 2000-05, Vol.36 (5), p.607-614
Main Authors: Yuko Kono, Takeoka, M., Uto, K., Uchida, A., Kannari, F.
Format: Article
Language:English
Subjects:
Arrays
Carbon dioxide
Diode-pumped lasers
Diodes
Doped-insulator lasers and other solid state lasers
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Gain
Holes
Laser arrays
Laser mode locking
Laser modes
Laser optical systems: design and operation
Lasers
Microchip lasers
Optical arrays
Optical coupling
Optics
Phased arrays
Physics
Reflection
Resonators, cavities, amplifiers, arrays, and rings
Semiconductor laser arrays
Slits
Solid lasers
Talbot effect
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Lateral mode coupling in a diode-pumped Nd:YAG microchip laser array is demonstrated with a Talbot cavity for the first time. The relatively low laser gains of solid-state lasers compared with diode lasers and CO/sub 2/ lasers, to which the Talbot cavity has already been applied successfully, are solved by employing a novel auxiliary Talbot cavity configuration. A brighter twin-peak far-field pattern indicating an out-of-phase array mode, whose spot is 9.3 times smaller than that obtained by incoherent superposition of the individual microchip laser outputs, is obtained from the phase-locked microchip laser array with a mode-selecting slit. Without the mode-selecting slit, a far-field pattern with a single narrow peak is obtained, showing that the array is locked in an in-phase mode, presumably because of multiple reflections in the auxiliary Talbot cavity.
ISSN:0018-9197
1558-1713
DOI:10.1109/3.842103