• Corpus ID: 118634559

Comb-assisted coherence transfer between laser fields

@article{Sala2014CombassistedCT,
  title={Comb-assisted coherence transfer between laser fields},
  author={Tommaso Sala and Samir Kassi and Johannes Burkart and M. Marangoni and Daniele Romanini},
  journal={arXiv: Optics},
  year={2014}
}

• T. Sala, S. Kassi, +2 authors D. Romanini
• Published 2 December 2014
• Physics
• arXiv: Optics

Single mode laser fields oscillate at frequencies well outside the realm of electronics, but their phase/frequency fluctuations fall into the radio frequency domain, where direct manipulation is possible. Electro-optic devices have sufficient bandwidth for controlling and tailoring the dynamics of a laser field down to sub-nanosecond time scales. Thus, a laser field can be arbitrarily reshaped and in particular its phase/frequency fluctuations can be in principle removed. In practice, the time evolution of a reference laser field can be cloned to replace the fluctuations of another laser field, at a close-by frequency. In fact, it is possible to exploit a partially stabilized optical comb to perform the cloning across a large frequency gap. We realize this long-haul phase transfer by using a fibered Mach-Zehnder single-sideband modulator driven by an appropriate mix of the beat notes of the master and the slave laser with the comb.