High-speed operation of single-mode tunable quantum cascade laser based on ultra-short resonant cavity
Author(s): Zhou, YH (Zhou, Yuhong); Liu, JQ (Liu, Junqi); Zhai, SQ (Zhai, Shenqiang); Zhuo, N (Zhuo, Ning); Zhang, JC (Zhang, Jinchuan); Liu, SM (Liu, Shuman); Wang, LJ (Wang, Lijun); Liu, FQ (Liu, Fengqi); Wang, ZG (Wang, Zhanguo)
Source: AIP ADVANCES Volume: 11 Issue: 1 Article Number: 015325 DOI: 10.1063/5.0036219 Published: JAN 1 2021
Abstract: We have demonstrated a room temperature, low power consumption, high-speed, and single-mode tunable quantum cascade laser at lambda similar to 4.6 mu m. Combining a 300 mu m buried hetero-structure ultra-short cavity with optimized facet coatings, a single-mode tuning range covering similar to 40 nm is obtained at room temperature under low electrical power consumption below 1.1 W. The single-mode emission is observed with more than 25 dB side mode suppression ratio in the whole tuning range. The high frequency modulation is achieved with a microwave package, resulting in the -3 dB cutoff frequency of 5.6 GHz.
Accession Number: WOS:000609446400007
eISSN: 2158-3226
