Highhyphen;frequency polarization selfhyphen;modulation in verticalhyphen;cavity surfacehyphen;emitting lasers

摘要

Polarization selfhyphen;modulation at frequencies up to 6 GHz is observed in a verticalhyphen;cavity surfacehyphen;emitting laser. This selfhyphen;oscillation is observed when a portion of the laser output power is injected back into the laser after having rotated its polarization by 90deg; with respect to the initial laser polarization state. Our experiment demonstrates a simple technique for generating an ultrahigh frequency optical clock. New applications in optical storage are also envisioned.