Physics – Quantum Physics
Scientific paper
2010-08-04
Optics Communications 283, 21 (2010) 4293-4297
Physics
Quantum Physics
Scientific paper
10.1016/j.optcom.2010.06.048
We propose what we believe to be a novel type of optical source for ultra-cold atomic Far Off-Resonance optical-dipole Traps (FORTs). The source is based on an Erbium Amplified Spontaneous Emission (ASE) source that seeds a high power Erbium Doped Fiber Amplifier (EDFA). The main interest of this source is its very low coherence length, thus allowing an incoherent superposition of several trapping beams without any optical interference. The behavior of the superimposed beams is then a scalar sum greatly simplifying complex configurations. As an illustration, we report an estimation of the intensity noise of this source and an estimation of the atomic excess heating rate for an evaporative cooling experiment application. They are both found to be suitable for cold atoms experiments.
Clément Jean-François
Garreau Jean Claude
Szriftgiser Pascal
Zehnl{é} V{é}ronique
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