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红外与毫米波学报 2001
INVESTIGATION ON InGaAs/InAlAs QUANTUM CASCADE LASERS'
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Abstract:
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, and the corresponding threshold current density is about 5kA/cm 2.
