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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 3 — Jan. 30, 2012
  • pp: 3235–3240

Optics InfoBase > Optics Express > Volume 20 > Issue 3 > Page 3235

Continuous-wave interband cascade lasers operating above room temperature at λ = 4.7-5.6 μm

William W. Bewley, Chadwick L. Canedy, Chul Soo Kim, Mijin Kim, Charles D. Merritt, Joshua Abell, Igor Vurgaftman, and Jerry R. Meyer  »View Author Affiliations


Optics Express, Vol. 20, Issue 3, pp. 3235-3240 (2012)
http://dx.doi.org/10.1364/OE.20.003235


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Abstract

We have substantially improved the performance of interband cascade lasers emitting at λ = 4.7 and 5.6 μm, by applying the recently-pioneered approach of heavily doping the injector regions to rebalance the electron and hole concentrations in the active quantum wells. Ridges of ≈10 μm width, 4 mm length, and high-reflectivity back facets achieve maximum continuous wave operating temperatures of 60°C and 48°C, respectively. The threshold power density of ≈1 kW/cm2 at T = 25°C is over an order of magnitude lower than for state-of-the-art quantum cascade lasers emitting in this spectral range.

© 2012 OSA

OCIS Codes
(140.2020) Lasers and laser optics : Diode lasers
(140.5960) Lasers and laser optics : Semiconductor lasers

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: January 10, 2012
Revised Manuscript: January 23, 2012
Manuscript Accepted: January 23, 2012
Published: January 26, 2012

Virtual Issues
March 22, 2012 Spotlight on Optics

Citation
William W. Bewley, Chadwick L. Canedy, Chul Soo Kim, Mijin Kim, Charles D. Merritt, Joshua Abell, Igor Vurgaftman, and Jerry R. Meyer, "Continuous-wave interband cascade lasers operating above room temperature at λ = 4.7-5.6 μm," Opt. Express 20, 3235-3240 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-3-3235


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References

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