English

Mutual first order coherence of phase-locked lasers

Quantum Physics 2016-08-16 v2

Abstract

We argue that (first-order) coherence is a relative, and not an absolute, property. It is shown how feedforward or feedback can be employed to make two (or more) lasers relatively coherent. We also show that after the relative coherence is established, the two lasers will stay relatively coherent for some time even if the feedforward or feedback loop has been turned off, enabling, e.g., demonstration of unconditional quantum teleportation using lasers.

Keywords

Cite

@article{arxiv.quant-ph/0302150,
  title  = {Mutual first order coherence of phase-locked lasers},
  author = {Hoshang Heydari and Gunnar Björk},
  journal= {arXiv preprint arXiv:quant-ph/0302150},
  year   = {2016}
}

Comments

9 pages, 6 figures

R2 v1 2026-07-22T19:38:23.035Z