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Investigation on InGaAs/InAlAs quantum cascade lasers.

Research output: Contribution to journalJournal article


Journal publication date2001
JournalJournal of Infrared and Millimeter Waves
Journal number1
Number of pages3
Original languageEnglish


The preparation and main characteristics of the InGaAs/InAlAs quantum cascade laser were given. The device has a reinforced ridge waveguide structure. The threshold current obtained at 80K is about 0.5A, an d the corresponding threshold current density is about 5kA/cm2.