Laser Centre Vrije Universiteit, Department of Physics and Astronomy, De Boelelaan 1081, 1081 HV, Amsterdam, The Netherlands
Abstract:
A locking scheme for optimizing the length of an optical cavity containing a birefringent crystal is presented. This scheme is a variation on the well known polarization sensitive locking scheme. The birefringence of the crystal introduces a polarization dependent phase difference which can be used to generate a locking signal. The principles of the locking system are described and verified experimentally.