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

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

Candice Tsay, Fatima Toor, Claire F Gmachl and Craig B Arnold
Optics letters, Vol.35(20), pp.3324-3326
10/15/2010
DOI: 10.1364/OL.35.003324
PMID: 20967054

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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 As(2)S(3) strip waveguides on an existing QCL chip. Integrated As(2)S(3) 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).

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