Ultra Fast Nonlinear Optical Tuning of Photonic Crystal Cavities

Details Ultra Fast Nonlinear Optical Tuning of Photonic Crystal Cavities Ultra Fast Nonlinear Optical Tuning of Photonic Crystal Cavities

2006-11-30

arxiv.org/abs/physics/0611303v1

Physics

Optics

Scientific paper

We demonstrate fast (up to 20 GHz), low power (5 $\mu W$) modulation of
photonic crystal (PC) cavities in GaAs containing InAs quantum dots. Rapid
modulation through blue-shifting of the cavity resonance is achieved via free
carrier injection by an above-band picosecond laser pulse. Slow tuning by
several linewidths due to laser-induced heating is also demonstrated.

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