27 February 2014 Integrated widely tunable quantum cascade lasers with super-structure gratings
Author Affiliations +
An integrated widely wavelength tunable mid-IR source is demonstrated. This three-section quantum cascade laser consists of a Fabry-Perot section placed between two super-structure grating (SSG) sections. The emission wavelength of the SSG-DBR QCL can be well controlled by varying the injection currents to the two grating sections of the device. The wavelength can be tuned from 4.58 μm to 4.77 μm (90 cm-1) with a supermode spacing of 30 nm. The SSG-DBR QCL can be a compact replacement for the external cavity QCL. It has great potential to achieve much further tuning ranges for many mid-IR sensing applications.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Dingkai Guo, Dingkai Guo, Xing Chen, Xing Chen, Jiun-Yun Li, Jiun-Yun Li, Liwei Cheng, Liwei Cheng, Terrance Worchesky, Terrance Worchesky, Fow-Sen Choa, Fow-Sen Choa, "Integrated widely tunable quantum cascade lasers with super-structure gratings", Proc. SPIE 9002, Novel In-Plane Semiconductor Lasers XIII, 90021N (27 February 2014); doi: 10.1117/12.2040965; https://doi.org/10.1117/12.2040965


Quantum cascade lasers on silicon
Proceedings of SPIE (February 19 2017)
Integrated chip-scale THz technology
Proceedings of SPIE (May 13 2011)
Modeling of light generation in photonic crystal lasers
Proceedings of SPIE (January 31 2007)

Back to Top