State-of-the-art continuous-wave InGaN laser diodes in the violet, blue, and green wavelength regimes

James W. Raring; Eric M. Hall; Matthew C. Schmidt; Christiane Poblenz; Ben Li; Nick Pfister; Don Kebort; Yu-Chia Chang; Daniel F. Feezell; Richard Craig; James S. Speck; Steven P. Denbaars; Shuji Nakamura

doi:10.1117/12.849713

4 May 2010 State-of-the-art continuous-wave InGaN laser diodes in the violet, blue, and green wavelength regimes

James W. Raring, Eric M. Hall, Matthew C. Schmidt, Christiane Poblenz, Ben Li, Nick Pfister, Don Kebort, Yu-Chia Chang, Daniel F. Feezell, Richard Craig, James S. Speck, Steven P. Denbaars, Shuji Nakamura

Author Affiliations +

Proceedings Volume 7686, Laser Technology for Defense and Security VI; 76860L (2010) https://doi.org/10.1117/12.849713
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

Abstract

We present state-of-the-art performance from green, blue, and violet InGaN-based laser diodes fabricated on nonpolar and semipolar GaN substrates. Using these novel crystal orientations, we demonstrate high power, high efficiency, continuous-wave operation from single-lateral-mode electrically pumped laser diodes at wavelengths from 405 nm to 500 nm. Additionally, we present the longest reported continuous-wave lasing demonstration of 525 nm and an output power of over 9 mW at 521 nm. Wall-plug efficiencies of over 25% in the violet region, 17.5% in the blue region, over 5% at 472nm, and 2.2% in the 500 nm range are reported. These InGaN-based devices offer dramatic improvement in size, weight, and cost over conventional gas and solid state lasers and may enable a variety of new applications in defense and security.

Citation Download Citation

James W. Raring, Eric M. Hall, Matthew C. Schmidt, Christiane Poblenz, Ben Li, Nick Pfister, Don Kebort, Yu-Chia Chang, Daniel F. Feezell, Richard Craig, James S. Speck, Steven P. Denbaars, and Shuji Nakamura "State-of-the-art continuous-wave InGaN laser diodes in the violet, blue, and green wavelength regimes", Proc. SPIE 7686, Laser Technology for Defense and Security VI, 76860L (4 May 2010); https://doi.org/10.1117/12.849713

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