Y coupled terahertz quantum cascade lasers
Optics
2012-06-06 v1 Other Condensed Matter
Abstract
Here we demonstrate a Y coupled terahertz (THz) quantum cascade laser (QCL) system. The two THz QCLs working around 2.85 THz are driven by independent electrical pulsers. Total peak THz output power of the Y system, with both arms being driven synchronously, is found to be more than the linear sum of the peak powers from the individual arms; 10.4 mW compared with 9.6 mW (4.7 mW + 4.9 mW). Furthermore, we demonstrate that the emission spectra of this coupled system are significantly different to that of either arm alone, or to the linear combination of their individual spectra.
Keywords
Cite
@article{arxiv.1206.0972,
title = {Y coupled terahertz quantum cascade lasers},
author = {Owen P. Marshall and Subhasish Chakraborty and Md. Khairuzzaman and Harvey E. Beere and David A. Ritchie},
journal= {arXiv preprint arXiv:1206.0972},
year = {2012}
}
Comments
9 pages, 3 figures