Fringe tracking with noisy interferometric data

Details Fringe tracking with noisy interferometric data Fringe tracking with noisy interferometric data

Jul 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007spie.6603e..65b&link_type=abstract

Noise and Fluctuations in Photonics, Quantum Optics, and Communications. Edited by Cohen, Leon. Proceedings of the SPIE, Volume

Physics

Optics

Scientific paper

In ground based interferometric observations, fringe stabilization over long integration times is a mandatory task in order to achieve useful performances even on faint sources. This is done by dedicated instruments which search the maximum of the fringe envelope and consequently correct the optical path of the interfering beams. Localization of the fringe maximum position is corrupted by noise coming both from turbulent atmosphere and instruments. Atmospheric fluctuations are corrected at telescope level, but high frequency disturbance, as well as inter-telescope one, still remain. These residuals must be recognized and separated from the source signal, in order to properly model the instrument behaviour. Moreover, algorithms for fringe tracking must be strong enough to tolerate residual noise and instrument model inaccuracy. We provide some examples of noise performance of both calibration and fringe maximum localization based on laboratory experiments.

Affiliated with

Also associated with

No associations

Rating

Fringe tracking with noisy interferometric data does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Fringe tracking with noisy interferometric data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fringe tracking with noisy interferometric data will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-790316