Simultaneously at two wavelengths (5.0 and 7.5 mu m) singlemode and tunable quantum cascade distributed feedback lasers
Publication information:
Straub, Gmachl, DL Sivco, AM Sergent, Capasso, and AY Cho. 2002. “Simultaneously at Two Wavelengths (5.0 and 7.5 Mu M) Singlemode and Tunable Quantum Cascade Distributed Feedback Lasers”. ELECTRONICS LETTERS, 38, 12, Pp. 565-67. doi:10.1049/el:20020355
Abstract
Quantum cascade distributed feedback (QC-DFB) lasers based on a heterogeneous-cascade two-wavelength active waveguide core and a multisectioned cavity featuring two different Bragg gratings are demonstrated. Optimised lasers display singlemode emission at lambda similar to 5.0 and 7.5 mum simultaneously and a tunability on both modes equal to single-wavelength QC-DFB lasers.