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Single-mode tunable, pulsed, and continuous wave quantum-cascade distributed feedback lasers at lambda congruent to 4.6-4.7 mu m

Citation:

R Kohler, C Gmachl, A Tredicucci, F Capasso, DL Sivco, SNG Chu, and AY Cho. 2000. “Single-mode tunable, pulsed, and continuous wave quantum-cascade distributed feedback lasers at lambda congruent to 4.6-4.7 mu m.” APPLIED PHYSICS LETTERS, 76, 9, Pp. 1092-1094.

Abstract:

Single-mode tunable quantum-cascade distributed feedback lasers emitting at 4.6-4.7 mu m wavelength are reported. The lasers employ strained heterostructure material with global strain compensation to provide the large band offset needed for high-performance short wavelength operation. Pulsed, continuously tunable single-mode emission is achieved from 90 to 300 K with a tuning range of 65 nm. Peak output power levels of 100 mW at room temperature are obtained. In continuous-wave operation, current tunable single-mode emission is demonstrated around liquid-nitrogen temperature with a tuning range of 20 nm (over a current range of 450 mA). The maximum output power in continuous wave at 80 K is 150 mW. (C) 2000 American Institute of Physics. [S0003-6951(00)01209-2].