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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 7 — Apr. 7, 2014
  • pp: 7702–7710

Pulsed and CW performance of 7-stage interband cascade lasers

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


Optics Express, Vol. 22, Issue 7, pp. 7702-7710 (2014)
http://dx.doi.org/10.1364/OE.22.007702


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Abstract

We report a narrow-ridge interband cascade laser emitting at λ ≈3.5 μm that produces up to 592 mW of cw power with a wallplug efficiency of 10.1% and beam quality factor of M2 = 3.7 at T = 25 °C. A pulsed cavity length study of broad-area lasers from the same wafer confirms that the 7-stage structure with thicker separate confinement layers has a reduced internal loss of ≈3 cm−1. More generally, devices from a large number of wafers with similar 7-stage designs and wavelengths spanning 2.95-4.7 μm exhibit consistently higher pulsed external differential quantum efficiencies than earlier state-of-the-art ICLs.

© 2014 Optical Society of America

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 16, 2014
Revised Manuscript: February 26, 2014
Manuscript Accepted: February 27, 2014
Published: March 26, 2014

Citation
Chadwick L. Canedy, Joshua Abell, Charles D. Merritt, William W. Bewley, Chul Soo Kim, Mijin Kim, Igor Vurgaftman, and Jerry R. Meyer, "Pulsed and CW performance of 7-stage interband cascade lasers," Opt. Express 22, 7702-7710 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-7-7702


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References

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