TITLE

Burn-in mechanism of 450 nm InGaN ridge laser test structures

AUTHOR(S)
Müller, Jens; Brüderl, Georg; Schillgalies, Marc; Tautz, Sönke; Dini, Dimitri; Breidenassel, Andreas; Galler, Bastian; Lutgen, Stephan
PUB. DATE
August 2009
SOURCE
Applied Physics Letters;8/3/2009, Vol. 95 Issue 5, p051104
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We investigated the short term stability of the optical output power of 450 nm InGaN test lasers. The short term degradation strongly depended on ridge width. It was mainly caused by an increase in threshold current. From measurements of subthreshold wave-length blueshift, carrier lifetime, and output power, we found a decrease in carrier density after 15 h of aging. We show a direct correlation of the short term aging with current spreading effects.
ACCESSION #
43594032

 

Related Articles

  • By-emitter degradation analysis of high-power laser bars. Bull, S.; Tomm, J. W.; Oudart, M.; Nagle, J.; Scholz, C.; Boucke, K.; Harrison, I.; Larkins, E. C. // Journal of Applied Physics;9/15/2005, Vol. 98 Issue 6, p063101 

    The study of degradation process in high-power laser diodes, in particular, high-power laser bars, has become increasingly important as the output power of these devices continues to rise. We present a “by-emitter” degradation analysis technique, which examines degradation processes...

  • Investigation of the concentration goodness for some liquid drugs using light angular scattering. Al-Muslet, Nafie A.; Yosif, Rasha I.; Ahmed, Mubarak M. // Indian Journal of Science & Technology;Jun2011, Vol. 4 Issue 6, p632 

    In this work a simple setup was built to measure the angular scattering of laser light as an approach for testing the quality of some pharmaceutical solutions (conc.) and detect any change in that concentration with respect to the standard one suitable for desired dose. A laser diode with...

  • Bidirectional communication using delay coupled chaotic directly modulated semiconductor lasers. Krishna, Bindu; John, Manu; Nandakumaran, V. // Pramana: Journal of Physics;Feb2010, Vol. 74 Issue 2, p177 

    Chaotic synchronization of two directly modulated semiconductor lasers with negative delayed optoelectronic feedback is investigated and this scheme is found to be useful for efficient bidirectional communication between the lasers. A symmetric bidirectional coupling is identified as a suitable...

  • Highly Efficient High-Power Quasi-Continuous Diode Laser Bars for Pumping Solid-State Lasers Based on Yb-Containing Active Media. Katsavets, N. I.; Buchenkov, V. A.; Demidov, D. M.; Leus, R. V.; Iskandarov, M. O.; Nikitichev, A. A.; Ter-Martirosyan, A. L. // Technical Physics Letters;Dec2004, Vol. 30 Issue 12, p1039 

    Highly efficient high-power quasi-continuous diode laser bars (DLBs) emitting in the region of λ = 0.95μm have been developed for pumping solid-state lasers based on Yb-containing active media. The parameters of DLBs and the results of long-term tests are presented. The proposed DLBs are...

  • Quasitransient backward Raman amplification of powerful laser pulses in dense plasmas with multicharged ions. Malkin, V. M.; Fisch, N. J. // Physics of Plasmas;Jul2010, Vol. 17 Issue 7, p073109 

    The range of plasma parameters, where the efficient quasitransient backward Raman amplification (QBRA) of powerful laser pulses is possible, is determined for dense plasmas with multicharged ions. Approximate scalings that portray in a simple way the efficient QBRA range in multidimensional...

  • Simulation of backward light waves generated in isotropic optical waveguides. Voevodin, V. G.; Leont'eva, O. V. // Russian Physics Journal;May2007, Vol. 50 Issue 5, p477 

    The existing coherent light sources are nonuniformly distributed by frequency in the optical range. Thus, work toward the development of tunable lasers operating in the middle IR range has long been underway. Nevertheless, the region 4–8 µm has been poorly mastered, and more longwave...

  • Laser-diode and Flash Lamp Pumped Solid-State Lasers. Le Garrec, Bruno // AIP Conference Proceedings;4/16/2010, Vol. 1228 Issue 1, p111 

    Since the early 80’s, most authors are considering that to enable high-average-power operation at the highest laser efficiency, it is necessary to replace flash lamp pumped solid-state lasers with laser-diode pumped solid-state lasers. This assumption is based on the fact that diode...

  • A small Raman laser based on a KGd(WO4)2 : Nd3+ Crystal (λ=1.538 µm) with passive resonator Q switching. Ustimenko, N.; Zabotin, E.M. // Instruments & Experimental Techniques;Mar/Apr2005, Vol. 48 Issue 2, p239 

    Generation properties of a Raman laser based on a KGd(WO4)2 : Nd3+ crystal and operating in a mode of passive resonator Q switching by a YAG : V3+ crystal at a wavelength safe for human eyes is studied. A small laser with a mass of 35 g, operating over a wide temperature range at a wavelength of...

  • Monolithic integration of vertical-cavity surface-emitting lasers with in-plane waveguides. Witzens, Jeremy; Scherer, Axel; Pickrell, Gregory; Louderback, Duane; Guilfoyle, Peter // Applied Physics Letters;3/7/2005, Vol. 86 Issue 10, p101105 

    The ability to couple light from a vertical-cavity surface-emitting laser into a planar, on-chip waveguide creates new opportunities for achieving higher levels of integration and functionality. Here we propose to use a strong grating etched into a waveguide defined into the top layer of the...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics