Lasing in 9.6-μm Quantum Cascade Lasers

Journal Article · Mon Oct 15 00:00:00 EDT 2018 · Technical Physics

DOI:https://doi.org/10.1134/S1063784218100043· OSTI ID:22783674

Babichev, A. V. ^[1]; Gusev, G. A.; Sofronov, A. N.; Firsov, D. A.; Vorob’ev, L. E. ^[2]; Usikova, A. A.; Zadiranov, Yu. M.; Il’inskaya, N. D.; Nevedomskii, V. N.; Dyudelev, V. V.; Sokolovskii, G. S. ^[1]; Gladyshev, A. G. ^[3]; Karachinsky, L. Ya.; Novikov, I. I. ^[1]

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1. Ioffe Institute, (Russian Federation)
2. Peter the Great St. Petersburg Polytechnic University (Russian Federation)
3. Connector Optics LLC (Russian Federation)

Lasing in MBE-grown impulsively pumped quantum cascade lasers of 9.6 μm at 140 K has been demonstrated. The active area is based on three-phonon resonance scattering of electrons. An In{sub 0.53}Ga{sub 0.47}As/Al{sub 0.48}In{sub 0.52}As solid alloy heteropair was used to form periods of quantum cascade lasers. The upper In{sub 0.52}Al{sub 0.48}As cladding of the waveguide was made thick. Alloyed and unalloyed lower metallization systems were studied. The threshold current density for a ridge laser 1 mm long and 27 μm wide has been found to roughly equal 3 kA/cm{sup 2} at 87 K. The optical output power has been estimated at a level of 20–35 mW.

• OSTI ID: 22783674
• Journal Information: Technical Physics, Vol. 63, Issue 10; Other Information: Copyright (c) 2018 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7842
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALUMINIUM COMPOUNDS
ARSENIC COMPOUNDS
CURRENT DENSITY
GALLIUM COMPOUNDS
INDIUM COMPOUNDS
MOLECULAR BEAM EPITAXY
RESONANCE SCATTERING
SEMICONDUCTOR LASERS
SOLIDS
TERNARY ALLOY SYSTEMS
THRESHOLD CURRENT
WAVEGUIDES