Deep phase modulation interferometry was proposed as a method to enhance homodyne interferometers to work over many fringes. In this scheme, a sinusoidal phase modulation is applied in one arm while the demodulation takes place as a post-processing step. In this contribution we report on the development to implement this scheme in a fiber coupled interferometer controlled by means of a FPGA, which includes a LEON3 soft-core processor. The latter acts as a CPU and executes a custom made application to communicate with a host PC. In contrast to usual FPGA-based designs, this implementation allows a real-time fine tuning of the parameters involved in the setup, from the control to the post-processing parameters.
|Original language||English (US)|
|Journal||Journal of Physics: Conference Series|
|State||Published - May 11 2015|
|Event||10th International LISA Symposium - Gainesville, United States|
Duration: May 18 2014 → May 23 2014
ASJC Scopus subject areas
- Physics and Astronomy(all)