An exemplary polarization controller includes a first optical element having a
first optical axis and configured to receive light having a first phase, a second
optical element having a second optical axis and configured to emit the light having
a second phase, and a third element having a third optical axis. At least a portion
of the third element is interstitial to the first element and the second element.
The exemplary controller also includes at least two drivers, both of which can
operate in accordance with an exemplary method of present invention.