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Coherent polarization locking of multimode beams in a diode bar.

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Coherent polarization locking of multimode beams in a diode bar.

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Title: Coherent polarization locking of multimode beams in a diode bar.
Author: Purnawirman, P.; Phua, Poh Boon.
Copyright year: 2011
Abstract: We demonstrate coherent polarization locking of multimode beams from four broad area emitters in a diode bar. The beams are overlapped into single output by using walk-off crystals and waveplates while their phases are locked via polarization discrimination. Coherent locking of multimode beams enabled power scaling of coherent diode output while retaining beam quality of single emitter. We obtained power of 7.2 W with M2 of 1.5 x 11.5 from a 980 nm diode laser. This corresponds to brightness improvement of more than an order of magnitude.
Subject: DRNTU::Science::Physics::Optics and light.
Type: Conference Paper
Conference name: High-Power Diode Laser Technology and Applications IX
School: School of Physical and Mathematical Sciences
Rights: © 2011 SPIE. This is the author created version of a work that has been peer reviewed and accepted for publication by Proceedings of SPIE, Society of Photo-optical Instrumentation Engineers. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI: http://dx.doi.org/10.1117/12.873692].
Version: Accepted version

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