High-speed operation of gain-switched midinfrared quantum cascade lasers

Applied Physics Letters

Volumn 75, Issue 17, 1999, Pages 2536-2538

  Paiella, Roberto ^a   Capasso, Federico ^a   Gmachl, Claire ^a   Bethea, Clyde G ^a   Sivco, Deborah L ^a   Baillargeon, James N ^a   Hutchinson, Albert L ^a   Cho, Alfred Y ^a  

^a LUCENT TECHNOLOGIES   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000363080     PISSN: 00036951     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.125069     Document Type: Article

References (11)

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11. A 3 dB cutoff frequency of 1.5 GHz corresponds to a rise time of approximately 233 ps, which is even slower than that measured in Fig. 2(b). It should be mentioned, however, that the detector response time was observed to vary with the operating conditions, such as incident power (consequently, a variable attenuator was used in front of the detector to optimize the detected power for maximum speed at each laser bias), and wavelength.