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

Candice Tsay; Fatima Toor; Claire F Gmachl; Craig B Arnold

doi:10.1364/OL.35.003324

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

Opt Lett. 2010 Oct 15;35(20):3324-6. doi: 10.1364/OL.35.003324.

Authors

Candice Tsay¹, Fatima Toor, Claire F Gmachl, Craig B Arnold

Affiliation

¹ Department of Electrical Engineering, Princeton University, Princeton, New Jersey 08540, USA.

PMID: 20967054
DOI: 10.1364/OL.35.003324

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).