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Conference Paper
Conference on Lasers and Electro-Optics
San Francisco, California United States
May 16, 2004
ISBN: 1-55752-770-9
Quantum Cascade Lasers I (CMR)

Single-mode operation of terahertz quantum cascade lasers with distributed-feedback resonators

Lukas Mahler, Ruedeger Koehler, Alessandro Tredicucci, Fabio Beltram, Harvey E. Beere, Edmund H. Linfield, David A. Ritchie, and Giles A. Davies

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Single-mode operation at 4.4 THz is obtained from distributed-feedback quantum-cascade lasers with complex-coupling metallic gratings. The emission shows a stable side-mode suppression of more than 20dB at all injection currents and operating temperatures.

© 2004 Optical Society of America

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.3490) Lasers and laser optics : Lasers, distributed-feedback

L. Mahler, R. Koehler, A. Tredicucci, F. Beltram, H. E. Beere, E. H. Linfield, D. A. Ritchie, and G. A. Davies, "Single-mode operation of terahertz quantum cascade lasers with distributed-feedback resonators," in Conference on Lasers and Electro-Optics/International Quantum Electronics Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2004), paper CMR1.

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