Author(s): Gao, X (Gao, Xu); Yang, K (Yang, Ke); Zhu, YX (Zhu, Yi-xuan); Liu, JQ (Liu, Jun-qi); Zhai, SQ (Zhai, Shen-qiang); Liu, SM (Liu, Shu-man); Zhuo, N (Zhuo, Ning); Zhang, JC (Zhang, Jin-chuan); Wang, LJ (Wang, Li-jun); Liu, FQ (Liu, Feng-qi); Wang, XH (Wang, Xiao-hua); Wei, ZP (Wei, Zhi-peng)

Source: ELECTRONICS LETTERS Volume: 59 Issue: 2 Article Number: e12704 DOI: 10.1049/ell2.12704 Published: JAN 2023

Abstract: The authors demonstrate a high-speed 8.5-mu m quantum cascade laser (QCL) with room temperature continuous wave (CW) operation. The maximum output power of 141 mW is obtained at 20 degrees C. The parasitic capacitance of the device is decreased from 36.6 to 7.1 pF by monolithic integrating a pi-shape metal contact electrode. This results in an increase in the -3 dB RF modulation bandwidth from 870 MHz to 4.5 GHz compared with the conventional electrode configuration.

Accession Number: WOS:000918992000001

ISSN: 0013-5194

eISSN: 1350-911X

Full Text: https://ietresearch.onlinelibrary.wiley.com/doi/10.1049/ell2.12704