Single-Mode Operation of Terahertz Quantum Cascade Lasers with Distributed Feedback Resonators

Lukas Mahler; Lukas Mahler; Rüdeger Köhler; Alessandro Tredicucci; Fabio Beitram; Harvey E. Beere; Edmund H. Linfield; David A. Ritchie; A. Giles Davies

Conference on Lasers and Electro-Optics/International Quantum Electronics Conference and Photonic Applications Systems Technologies
Technical Digest (CD) (Optica Publishing Group, 2004),
paper CMR1

Single-Mode Operation of Terahertz Quantum Cascade Lasers with Distributed Feedback Resonators

Lukas Mahler, Rüdeger Köhler, Alessandro Tredicucci, Fabio Beitram, Harvey E. Beere, Edmund H. Linfield, David A. Ritchie, and A. Giles Davies

Conference on Lasers and Electro-Optics 2004

San Francisco, California United States
16–21 May 2004
ISBN: 1-55752-770-9

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Quantum Cascade Lasers I (CMR)

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L. Mahler, R. Köhler, A. Tredicucci, F. Beitram, H. E. Beere, E. H. Linfield, D. A. Ritchie, and A. G. 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) (Optica Publishing Group, 2004), paper CMR1.

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Abstract

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.

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