Ultra-stable fibre optics using new-generation optical fibres

通过光纤传播的信号通常被认为不受外部环境和相关干扰的影响。然而，这仅在信号强度（功率）方面是正确的-信号需要通过光纤传播的时间取决于环境变化，如温度变化。这种灵敏度对于许多光纤系统至关重要，例如干涉测量（广泛用于任何光学领域，包括量子技术）和超精确时间/频率传输。该主题涉及在这些应用中使用对环境敏感性大大降低的新一代光纤。

A signal propagating through an optical fibre is generally considered to be immune to the external environment and associated disturbances. However, this is only true in terms of the signal intensity (power) - the time signal needs to propagate through the fibre depends on environmental changes like temperature variations. This sensitivity is critical for many fibre systems such as Interferometry (widely used in any field of optics, including quantum technologies) and ultra-precise time/frequency transfer. The topic deals with using new generation of optical fibres with strongly-reduced sensitivity to the environment in these applications.