Multi-Spectral Quantum Cascade Lasers on Silicon With Integrated Multiplexers
AbstractMulti-spectral midwave-infrared (mid-IR) lasers are demonstrated by directly bonding quantum cascade epitaxial gain layers to silicon-on-insulator (SOI) waveguides with arrayed waveguide grating (AWG) multiplexers. Arrays of distributed feedback (DFB) and distributed Bragg-reflection (DBR) quantum cascade lasers (QCLs) emitting at ∼4.7 µm wavelength are coupled to AWGs on the same chip. Low-loss spectral beam combining allows for brightness scaling by coupling the light generated by multiple input QCLs into the fundamental mode of a single output waveguide. Promising results are demonstrated and further improvements are in progress. This device can lead to compact and sensitive chemical detection systems using absorption spectroscopy across a broad spectral range in the mid-IR as well as a high-brightness multi-spectral source for power scaling. View Full-Text
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Stanton, E.J.; Spott, A.; Peters, J.; Davenport, M.L.; Malik, A.; Volet, N.; Liu, J.; Merritt, C.D.; Vurgaftman, I.; Kim, C.S.; Meyer, J.R.; Bowers, J.E. Multi-Spectral Quantum Cascade Lasers on Silicon With Integrated Multiplexers. Photonics 2019, 6, 6.
Stanton EJ, Spott A, Peters J, Davenport ML, Malik A, Volet N, Liu J, Merritt CD, Vurgaftman I, Kim CS, Meyer JR, Bowers JE. Multi-Spectral Quantum Cascade Lasers on Silicon With Integrated Multiplexers. Photonics. 2019; 6(1):6.Chicago/Turabian Style
Stanton, Eric J.; Spott, Alexander; Peters, Jon; Davenport, Michael L.; Malik, Aditya; Volet, Nicolas; Liu, Junqian; Merritt, Charles D.; Vurgaftman, Igor; Kim, Chul S.; Meyer, Jerry R.; Bowers, John E. 2019. "Multi-Spectral Quantum Cascade Lasers on Silicon With Integrated Multiplexers." Photonics 6, no. 1: 6.
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