Optics | Physical Sciences and Mathematics | Physics
Fabry-Perot InAs quantum-dot lasers grown on GaAs substrates are mutually coupled with a delay of several nanoseconds. Stable phase-locked output with narrow linewidth is obtained when the frequency detuning between the two lasers is less than 4 GHz. This simple locking scheme could find application in a variety of photonics applications.
Stephen P. Hegarty, David Goulding, Bryan Kelleher, Guillaume Huyet, Maria-Teresa Todaro, Abdelmajid Salhi, Adriana Passaseo, and Massimo De Vittorio, "Phase-locked mutually coupled 1.3 μm quantum-dot lasers," Opt. Lett. 32, 3245-3247 (2007)