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arXiv · 1412.1102

Comb-assisted coherence transfer between laser fields

Tommaso Sala·Samir Kassi·Johannes Burkart·Marco Marangoni·Daniele Romanini
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Abstract

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.

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Tommaso Sala, Samir Kassi, Johannes Burkart, Marco Marangoni, Daniele Romanini. 2014-12-02. Comb-assisted coherence transfer between laser fields. https://arxiv.org/abs/1412.1102

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