An analysis of the phase dispersion in the symmetric beam combiner

Hong Tang; Feng Zhao

doi:10.1117/12.674156

28 June 2006 An analysis of the phase dispersion in the symmetric beam combiner

Hong Tang, Feng Zhao

Proceedings Volume 6268, Advances in Stellar Interferometry; 62683F (2006) https://doi.org/10.1117/12.674156
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

Abstract

An astronomical beam combiner combines the two beams of starlight to form white-light fringes. It is desirable that the dispersion of the beam combiner be minimized across the observation wavelength range. We present here an analysis of the phase dispersion from coatings for a symmetric beam combiner. The sensitivity of the dispersion to a slight mismatch in beamsplitter coatings is also studied.

Citation Download Citation

Hong Tang and Feng Zhao "An analysis of the phase dispersion in the symmetric beam combiner", Proc. SPIE 6268, Advances in Stellar Interferometry, 62683F (28 June 2006); https://doi.org/10.1117/12.674156

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