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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 1 — Jan. 13, 2014
  • pp: 1203–1208

Continuous wave operation of buried heterostructure 4.6µm quantum cascade laser Y-junctions and tree arrays

Arkadiy Lyakh, Richard Maulini, Alexei Tsekoun, Rowel Go, and C. Kumar N. Patel  »View Author Affiliations


Optics Express, Vol. 22, Issue 1, pp. 1203-1208 (2014)
http://dx.doi.org/10.1364/OE.22.001203


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Abstract

Room-temperature continuous-wave operation for buried heterostructure 4.6µm quantum cascade laser Y-junctions and tree arrays, overgrown using hydride vapor phase epitaxy, has been demonstrated. Pulsed wall plug efficiency for the Y-junctions with bending radius of 5mm was measured to be very similar to that of single-emitter lasers from the same material, indicating low coupling losses. Comparison between model and experimental data showed that the in-phase mode was dominating for 10mm-long Y-junctions with 5µm-wide 1mm-long stem and 5µm-wide branches. Total optical power over 1.5W was demonstrated for four-branch QCL tree array.

© 2014 Optical Society of America

OCIS Codes
(140.3298) Lasers and laser optics : Laser beam combining
(140.5965) Lasers and laser optics : Semiconductor lasers, quantum cascade

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: December 13, 2013
Revised Manuscript: January 3, 2014
Manuscript Accepted: January 8, 2014
Published: January 10, 2014

Citation
Arkadiy Lyakh, Richard Maulini, Alexei Tsekoun, Rowel Go, and C. Kumar N. Patel, "Continuous wave operation of buried heterostructure 4.6µm quantum cascade laser Y-junctions and tree arrays," Opt. Express 22, 1203-1208 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-1-1203


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References

  1. A. Lyakh, R. Maulini, A. Tsekoun, R. Go, C. Pflügl, L. Diehl, Q. Wang, F. Capasso, C. K. N. Patel, “3 W continuous-wave room temperature single-facet emission from quantum cascade lasers based on nonresonant extraction design approach,” Appl. Phys. Lett. 95(14), 141113 (2009). [CrossRef]
  2. Y. Bai, N. Bandyopadhyay, S. Tsao, S. Slivken, M. Razeghi, “Room temperature quantum cascade lasers with 27% wall plug efficiency,” Appl. Phys. Lett. 98(18), 181102 (2011). [CrossRef]
  3. R. Maulini, A. Lyakh, A. Tsekoun, C. K. N. Patel, “λ~7.1 μm quantum cascade lasers with 19% wall-plug efficiency at room temperature,” Opt. Express 19(18), 17203–17211 (2011). [CrossRef] [PubMed]
  4. A. Lyakh, R. Maulini, A. Tsekoun, R. Go, C. K. N. Patel, “Multiwatt long wavelength quantum cascade lasers based on high strain composition with 70% injection efficiency,” Opt. Express 20(22), 24272–24279 (2012). [CrossRef] [PubMed]
  5. A. Lyakh, R. Maulini, A. Tsekoun, R. Go, C. K. N. Patel, “Tapered 4.7µm quantum cascade lasers with highly strained active region composition delivering over 4.5 watts of continuous wave optical power,” Opt. Exp. 20(4), 4382 (2012). [CrossRef]
  6. A. Lyakh, R. Maulini, A. Tsekoun, R. Go, S. Von Der Porten, C. Pflugl, L. Diehl, F. Capasso, C. K. N. Patel, “High-performance continuous-wave room temperature 4.0-µm quantum cascade lasers with single-facet optical emission exceeding 2 W,” Proc. Natl. Acad. Sci. U. S. A. 107(44), 18799–18802 (2010). [CrossRef]
  7. L. K. Hoffmann, M. Klinkmüller, E. Mujagić, M. P. Semtsiv, W. Schrenk, W. T. Masselink, G. Strasser, “Tree array quantum cascade laser,” Opt. Express 17(2), 649–657 (2009). [CrossRef] [PubMed]
  8. S. Lourdudoss, O. Kjebon, “Hydride vapour phase epitaxy revisited,” IEEE Sel. Top. Quantum Electron. 3(3), 749–767 (1997). [CrossRef]
  9. L. K. Hoffmann, C. A. Hurni, S. Schartner, M. Austerer, E. Mujagić, M. Nobile, A. Benz, W. Schrenk, A. M. Andrews, P. Klang, G. Strasser, “Coherence in Y-coupled quantum cascade lasers,” Appl. Phys. Lett. 91(16), 161106 (2007). [CrossRef]

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