Author(s): Liu, JH (Liu, Junhong); Xu, YF (Xu, Yunfei); Li, RS (Li, Rusong); Zhang, JC (Zhang, Jinchuan); Zhuo, N (Zhuo, Ning); Liu, JQ (Liu, Junqi); Wang, LJ (Wang, Lijun); Cheng, FM (Cheng, Fengmin); Liu, SM (Liu, Shuman); Liu, FQ (Liu, Fengqi); Lu, QY (Lu, Quanyong); Zhai, SQ (Zhai, Shenqiang)

Source: PHOTONICS Volume: 11 Issue: 2  Article Number: 150  DOI: 10.3390/photonics11020150  Published: FEB 2024 

Abstract: The photonic crystal surface-emitting laser (PCSEL) has attracted much attention due to the advantages of a small far-field divergence angle and high output power. Here, we report a high-power terahertz (THz) photonic crystal laser with high beam quality through the optimization of the absorption boundary condition and the introduction of the symmetrically distributed electrodes. Single-mode surface emission at 3.4 THz with the maximum peak output power of 50 mW is demonstrated. Meanwhile, a high symmetric far-field pattern with C6 symmetry and a small divergence angle is achieved. In this device, the integration of the stable single-mode operation, high beam quality and high output power is realized, which may have great significance for practical applications.

Accession Number: WOS:001172257000001

Author Identifiers:

Author Web of Science ResearcherID     ORCID Number

liu, jun qi       0000-0003-1654-6174

Liu, Jun-Hong       0000-0003-4205-3859

eISSN: 2304-6732