Full Content is available to subscribers

Subscribe/Learn More  >
Proceedings Article

Ultra high efficiency 1550nm multi-junction pulsed laser diodes

[+] Author Affiliations
Jean-François Boucher, Paul Rainbow

Laser Components Canada, Inc. (Canada)

Ville Vilokkinen, Petteri Uusimaa

Modulight, Inc. (Finland)

Jari Lyytikäinen, Sanna Ranta

Tampere Univ. of Technology (Finland)

Proc. SPIE 7480, Unmanned/Unattended Sensors and Sensor Networks VI, 74800K (September 24, 2009); doi:10.1117/12.829925
Text Size: A A A
From Conference Volume 7480

  • Unmanned/Unattended Sensors and Sensor Networks VI
  • Edward M. Carapezza
  • Berlin, Germany | August 31, 2009

abstract

The 1550nm wavelength region is critical to the development of next generation eye safe military applications such as range finding and friend or foe identification (FOE). So far the relatively low laser external efficiency was a strong limiting factor favoring shorter wavelength diode lasers. We report on the development of a new monolithic multiple junction pulsed laser diode offering an external efficiency of more than one Watt per Amp with high brightness. Peak optical output power of more than 37 Watts has been achieved from a single multi-junction diode laser. Divergence is narrow with less than 35 degrees (FWHM) in the fast axis direction. Starting from an AlGaInAs quantum well laser structure, we show the criticality of the design of InP based tunnel junctions to the growth of the three layer epitaxial monolithic laser. We then report on trenches employed to confine carriers under the contacting stripe and on growth strategies used to decouple the multiple light sources resulting from the multi-junction design. A full set of characterization data is presented concluding with a discussion on performance limitations and their potential causes.

© (2009) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Jean-François Boucher ; Ville Vilokkinen ; Paul Rainbow ; Petteri Uusimaa ; Jari Lyytikäinen, et al.
"Ultra high efficiency 1550nm multi-junction pulsed laser diodes", Proc. SPIE 7480, Unmanned/Unattended Sensors and Sensor Networks VI, 74800K (September 24, 2009); doi:10.1117/12.829925; http://dx.doi.org/10.1117/12.829925


Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).

Figures

Tables

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement

 

 

  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.