This thesis was based in NPL.

Click here to download thesis: Ultrastable High Finesse Cavities for Laser Frequency Stabilization

Title: Ultrastable high finesse cavities for laser frequency stabilization


Lasers with stability of the order of ≈ 10-15 or more form the basis of frequency metrology and several other experiments including, gravitational
wave detection, high-precision spectroscopy, tests of relativity, etc. The work described in this thesis is about the frequency stabilization of 1064nm, Nd:YAG lasers to ultra-stable, high finesse Fabry-Perot cavities using the Pound-Drever-Hall locking scheme. These lasers will be used as flywheel oscillators for optical atomic clocks. Most of the work described in this thesis is about the design and development of a stable laser using a cryogenic, all-sapphire, high finesse Fabry-Perot cavity. Two similar systems have been developed and the beat frequency between the two has been measured. This beat frequency measurement provides a measure of relative stability of the laser. A few experiments have also been performed with ULE (ultra-low expansivity) glass cavities.


Issue Date: May 2007

Supervisor: Segal, Danny

                     Webster, Stephen

                     Oxborrow, Mark

Item Type:  Physics PhD Thesis