Distributed feedback quantum cascade lasers

Applied Physics Letters - Tập 70 Số 20 - Trang 2670-2672 - 1997
Jérôme Faist1, Claire Gmachl1, Federico Capasso1, Carlo Sirtori1, Deborah L. Sivco1, James N. Baillargeon1, Alfred Y. Cho1
1Bell Laboratories, Lucent Technologies, Murray Hill, New Jersey, 07974

Tóm tắt

Pulsed single mode operation of distributed feedback quantum cascade lasers is reported above room temperature at both 5.4 and 8 μm wavelengths. Peak optical powers up to 60 mW at 300 K are obtained with a tuning range of ∼60 nm from 100 to ∼320 K. The linewidth is limited by thermal drift during the pulse with a typical value of 0.3 cm−1 for a 10 ns long pulse at 300 K.

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