Tapered 4.7 μm quantum cascade lasers with highly strained active region composition delivering over 4.5 watts of continuous wave optical power

Optics Express

Volumn 20, Issue 4, 2012, Pages 4382-4388

  Lyakh, Arkadiy ^a   Maulini, Richard ^a   Tsekoun, Alexei ^a   Go, Rowel ^a   Kumar, C ^a   Patel, N ^a,b  

^a Pranalytica Inc   (United States)

^b UNIVERSITY OF CALIFORNIA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

GALLIUM; MOLECULAR BEAM EPITAXY;

ACTIVE REGIONS; ALN; BURIED HETEROSTRUCTURES; COLLIMATED BEAMS; CONTINUOUS WAVE; DESIGN APPROACHES; HIGHLY STRAINED; LASER DEVICE; LASER FACETS; NONRESONANT; OPTICAL POWER; QUANTUM CASCADE LASER STRUCTURES; SINGLE-ENDED; STRAIN-BALANCED; SYSTEM EFFICIENCY; WALLPLUG EFFICIENCY;

QUANTUM CASCADE LASERS;

EID: 84857325907     PISSN: None     EISSN: 10944087     Source Type: Journal    
DOI: 10.1364/OE.20.004382     Document Type: Article

References (14)

1. R. Maulini, A. Lyakh, A. Tsekoun, C. Kumar, and N. Patel, "λ∼7.1 μm quantum cascade lasers with 19% wallplug efficiency at room temperature," Opt. Express 19(18), 17203 (2011).
2. Y. Bai, N. Bandyopadhayay, S. Tsao, S. Slivken, and M. Razeghi, "Room temperature quantum cascade lasers with 27% wall plug efficiency," Appl. Phys. Lett. 98(18), 181102 (2011).
3. A. Lyakh, R. Maulini, A. Tsekoun, R. Go, C. Pflügl, L. Diehl, Q. J. Wang, F. Capasso, and 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).
4. D. Botez, S. Kumar, J. C. Shin, L. J. Mawst, I. Vurgaftman, and J. R. Meyer, "Temperature dependence of key electro-optical characteristics for midinfrared emitting quantum cascade lasers," Appl. Phys. Lett. 97(7), 071101 (2010).
5. W. Masselink, M. Semtsiv, S. Dressler, M. Ziegler, and M. Wienold, "Physics, growth, and performance of (In, Ga)As-AlP/InP quantum-cascade lasers emitting at λ<4μm," Phys. Status Solidi B 244(8), 2906-2915 (2007).
6. A. Wittmann, Y. Bonetti, J. Faist, E. Gini, and M. Giovannini, "Intersubband linewidth in quantum cascade laser design," Appl. Phys. Lett. 93(14), 141103 (2008).
7. A. Lyakh, R. Maulini, and A. Tsekoun, C. Kumar N. Patel, L. Diehl, C. Pflügl, Q. Wang and F. Capasso, U. S. Patent #8,014,430 (September 6, 2011).
8. M. Troccoli, C. Gmachl, F. Capasso, D. L. Sivco, and A. Y. Cho, "Mid-infrared (λ≈7.4μm) quantum cascade laser amplifier for high power single-mode emission and improved beam quality," Appl. Phys. Lett. 80(22), 4103 (2002).
9. S. Menzel, L. Diehl, C. Pflügl, A. Goyal, C. Wang, A. Sanchez, G. Turner, and F. Capasso, "Quantum cascade laser master-oscillator power-amplifier with 1.5 W output power at 300 K," Opt. Express 19(17), 16229-16235 (2011).
10. L. Nähle, J. Semmel, W. Kaiser, S. Höfling, and A. Forchel, "Tapered quantum cascade lasers," Appl. Phys. Lett. 91(18), 181122 (2007).
11. W. Zhang, L. Wang, L. Li, J. Liu, F.-Q. Liu, and Z. Wang, "Small-divergence singlemode emitting tapered distributed feedback quantum cascade lasers," Electron. Lett. 46(7), 528 (2010).
12. A. Tsekoun, R. Go, M. Pushkarsky, M. Razeghi, and C. K. N. Patel, "Improved performance of quantum cascade lasers through a scalable, manufacturable epitaxial-side-down mounting process," Proc. Natl. Acad. Sci. U.S.A. 103(13), 4831-4835 (2006).
13. C. K. N. Patel, A. Lyakh, A. Tsekoun, and R. Maulini, U.S. Patent #8,068,524 (November 29, 2011).
14. N. Yu, L. Diehl, E. Cubukcu, C. Pflügl, D. Bour, S. Corzine, J. Zhu, G. Höfler, K. B. Crozier, and F. Capasso, "Near-field imaging of quantum cascade laser transverse modes," Opt. Express 15(20), 13227-13235 (2007).