Wide bandwidth phase-locked diode laser with an intra-cavity electro-optic modulator
Optics
2009-11-13 v1 Atomic Physics
Abstract
Two extended cavity laser diodes are phase-locked, thanks to an intra-cavity electro-optical modulator. The phase-locked loop bandwidth is on the order of 10 MHz, which is about twice larger than when the feedback correction is applied on the laser current. The phase noise reaches -120 dBrad/Hz at 10 kHz. This new scheme reduces the residual laser phase noise, which constitutes one of the dominant contributions in the sensitivity limit of atom interferometers using two-photon transitions.
Cite
@article{arxiv.0809.3763,
title = {Wide bandwidth phase-locked diode laser with an intra-cavity electro-optic modulator},
author = {J. Le Gouët and J. Kim and C. Bourassin-Bouchet and M. Lours and A. Landragin and F. Pereira Dos Santos},
journal= {arXiv preprint arXiv:0809.3763},
year = {2009}
}
Comments
11 pages, 3 figures