Wideband, efficient optical serrodyne frequency shifting with a phase modulator and a nonlinear transmission Line.

@article{Houtz2009WidebandEO,
  title={Wideband, efficient optical serrodyne frequency shifting with a phase modulator and a nonlinear transmission Line.},
  author={Rachel Houtz and Cheong Xin Chan and Holger S P M{\"u}ller},
  journal={Optics express},
  year={2009},
  volume={17 21},
  pages={19235-40}
}
We report shifting of the frequency of an 850 nm laser with an instantaneous bandwidth of (350-1650) MHz and an efficiency between 35% (minimum) to 80% (best at frequencies around 600 and 1500 MHz) by phase modulation with a sawtooth waveform ("serrodyne frequency shifting"). We use a fiber-coupled traveling wave electro-optical modulator driven by a nonlinear transmission line.