TY - JOUR
T1 - High-frequency modulation without the relaxation oscillation resonance in quantum cascade lasers
AU - Paiella, Roberto
AU - Martini, Rainer
AU - Capasso, Federico
AU - Gmachl, Claire
AU - Hwang, Harold Y.
AU - Sivco, Deborah L.
AU - Baillargeon, James N.
AU - Cho, Alfred Y.
AU - Whittaker, Edward A.
AU - Liu, H. C.
PY - 2001/10/15
Y1 - 2001/10/15
N2 - Quantum cascade (QC) lasers, based on intersubband transitions in semiconductor quantum wells, are characterized by ultrafast (picosecond) carrier lifetimes. An important consequence of this unique property is the expected absence of relaxation oscillations in the transient response of these devices. Here, we discuss and experimentally verify this prediction by measuring the modulation response of several 8-μm-QC lasers, properly processed and packaged for high-speed operation, up to 10 GHz.
AB - Quantum cascade (QC) lasers, based on intersubband transitions in semiconductor quantum wells, are characterized by ultrafast (picosecond) carrier lifetimes. An important consequence of this unique property is the expected absence of relaxation oscillations in the transient response of these devices. Here, we discuss and experimentally verify this prediction by measuring the modulation response of several 8-μm-QC lasers, properly processed and packaged for high-speed operation, up to 10 GHz.
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U2 - 10.1063/1.1411982
DO - 10.1063/1.1411982
M3 - Article
AN - SCOPUS:0035886354
SN - 0003-6951
VL - 79
SP - 2526
EP - 2528
JO - Applied Physics Letters
JF - Applied Physics Letters
IS - 16
ER -