Summary form only given. We address practical issues involving quantum cascade laser (QCL) fabrication, introduce a new fabrication technique which permits a reduction in the waveguide width which is simple to implement, and report on quantum cascade devices lasing at /spl lambda/=5 /spl mu/m fabricated using this new scheme. The QC wafer, based on the design demonstrated by Faist et al. (1996), was grown in-house. Production of QC lasers with reduced threshold currents are envisaged through a reduction in the laser waveguide core width.
Inverted-mesa quantum cascade lasers
1999-01-01
340149 byte
Conference paper
Electronic Resource
English
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