Three-port beam splitters-combiners for interferometer applications
Optics
2009-11-13 v1
Abstract
We derive generic phase and amplitude coupling relations for beam splitters-combiners that couple a single port with three output ports or input ports, respectively. We apply the coupling relations to a reflection grating that serves as a coupler to a single-ended Fabry-Perot ring cavity. In the impedance-matched case such an interferometer can act as an all-reflective ring mode cleaner. It is further shown that in the highly undercoupled case almost complete separation of carrier power and phase signal from a cavity strain can be achieved.
Cite
@article{arxiv.0707.0206,
title = {Three-port beam splitters-combiners for interferometer applications},
author = {R. Schnabel and A. Bunkowski and O. Burmeister and K. Danzmann},
journal= {arXiv preprint arXiv:0707.0206},
year = {2009}
}