All-reflective interferometric gravitational-wave detector configurations with a diffraction grating as a power beam splitter have been proposed to reduce thermal lensing. We demonstrate the use of a diffraction grating as a polarization beam splitter in a zero-area polarization Sagnac interferometer.
© 2000 Optical Society of America
S. Traeger, P. Beyersdorf, L. Goddard, E. Gustafson, M. M. Fejer, and R. L. Byer, "Polarization Sagnac interferometer with a reflective grating beam splitter," Opt. Lett. 25, 722-724 (2000)