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Chalcogenide glass waveguides integrated with quantum cascade lasers for on-chip mid-IR photonic circuits

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Abstract

We demonstrate on-chip hybrid integration of chalcogenide glass waveguides and quantum cascade lasers (QCLs). Integration is achieved using an additive solution-casting and molding method to directly form As2S3 strip waveguides on an existing QCL chip. Integrated As2S3 strip waveguides constructed in this manner display strong optical confinement and guiding around 90° bends, with a NA of 0.24 and bend loss of 12.9dB at a 1mm radius (λ=4.8μm).

© 2010 Optical Society of America

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