1.
Opt Express
; 23(5): 6915-23, 2015 Mar 09.
Artigo
em Inglês
| MEDLINE
| ID: mdl-25836911
RESUMO
We have demonstrated that a hybrid laser array, combining graded-photonic-heterostructure terahertz semiconductor lasers with a ring resonator, allows the relative phase (either symmetric or anti-symmetric) between the sources to be fixed by design. We have successfully phase-locked up to five separate lasers. Compared with a single device, we achieved a clear narrowing of the output beam profile.