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Conferences > NLDA > 1999 > LMD > LMD2

High-efficiency and high-brightness 980-nm AlGaAs/InGaAs Diode Lasers

Jürgen Braunstein, Michael Mikulla, Alexis Schmitt, Rudolf Kiefer, Martin Walther, and Günter Weimann

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Abstract

High-brightness and high-efficiency laser bars have been fabricated in the AlGaAs/InGaAs material system. The electro-optical conversion efficiency is close to 60 % at 60 W optical power for bars with broad area lasers. Laser bars comprising 25 tapered emitters have been fabricated as well. Their total output power is higher than 25 W and the average beam quality factor M2 of each individual emitter is 2.18 at 10 W total power.

© 1999 Optical Society of America

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