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Optica Publishing Group
  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 1988),
  • paper TUM1

Phase-locking of CO2 laser arrays using diffractional coupling

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Abstract

Unstable resonators can be used to produce single-transverse-mode beams from large-aperture lasers. However, their inherent losses limit their usefulness to laser media with a high gain. Phase locking of laser arrays is an alternative approach to efficiently extract the laser energy from a gain medium of large volume. It has been demonstrated1 with semiconductor lasers through evanescent wave coupling or Y-junctions; more recently, phase locking of CO2 laser arrays was achieved2 by using a hollow-bore ridge waveguide geometry.

© 1988 Optical Society of America

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