In order to make this work, though, the modulation has to be faster than the width of the wavepacket of the photon that you want to modulate.    From Wordnik.com.  [PhysOrg.com - latest science and technology news stories] Reference

If the laser was set to the right frequency, it would create a superposition of the ground and excited wavefunctions that emits a simple, easily detected wavepacket that oscillates over time.    From Wordnik.com.  [Ars Technica] Reference

The spreading of the ion wavepacket means that it may or may not interact with the calcium-binding proteins that will result in neurotransmitter release, which will mean that the nerve may or may not fire and so on until the brain is one mass of probability and requires a quantum process to collapse it.    From Wordnik.com.  [Dembski, Decoherence and the brain - The Panda's Thumb] Reference