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Proceedings Paper

High-performance blue and green laser diodes based on nonpolar/semipolar bulk GaN substrates
Author(s): James W. Raring; Mathew C. Schmidt; Christiane Poblenz; Ben Li; Yu-Chia Chang; Mark J. Mondry; You-Da Lin; Michael R. Krames; Richard Craig; James S. Speck; Steven P. DenBaars; Shuji Nakamura
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Paper Abstract

We present state-of-the-art performance from green and blue InGaN-based laser diodes fabricated on nonpolar/semipolar substrates. Using these novel crystal orientations, we demonstrate high-power, high-efficiency, and long-lifetime continuous-wave laser operation. For green wavelengths at 520 nm, we report on continuous wave single mode lasing with over 65 mW of output power and wall plug efficiencies over 2%. In the blue regime we describe single-mode lasers operating with over 23% wall-plug-efficiency and with output powers greater than 750 mW. To the best of the author's knowledge, this efficiency represents the highest reported to date for a single-mode blue laser. These InGaNbased devices offer dramatic improvement in performance, size, weight, and cost over conventional gas and solid state lasers for use in defense, biomedicine, and consumer projection displays.

Paper Details

Date Published: 3 March 2011
PDF: 7 pages
Proc. SPIE 7939, Gallium Nitride Materials and Devices VI, 79390Y (3 March 2011); doi: 10.1117/12.872023
Show Author Affiliations
James W. Raring, Soraa, Inc. (United States)
Mathew C. Schmidt, Soraa, Inc. (United States)
Christiane Poblenz, Soraa, Inc. (United States)
Ben Li, Soraa, Inc. (United States)
Yu-Chia Chang, Soraa, Inc. (United States)
Mark J. Mondry, Soraa, Inc. (United States)
You-Da Lin, Soraa, Inc. (United States)
Michael R. Krames, Soraa, Inc. (United States)
Richard Craig, Soraa, Inc. (United States)
James S. Speck, Soraa, Inc. (United States)
Steven P. DenBaars, Soraa, Inc. (United States)
Shuji Nakamura, Soraa, Inc. (United States)

Published in SPIE Proceedings Vol. 7939:
Gallium Nitride Materials and Devices VI
Jen-Inn Chyi; Yasushi Nanishi; Hadis Morkoç; Joachim Piprek; Euijoon Yoon, Editor(s)

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