Abstract

Accuracy in measuring displacement in optical interferometers is limited by cyclic errors introduced by various leakage paths within the system. Existing techniques to reduce this nonlinearity do not work when there is large optical loss in the target path, such as for long-range measurements. We describe a new approach to reducing nonlinearity that overcomes these limitations. Based on phase modulation of the laser light, and requiring minimal additional components, experiments have demonstrated rejection of the effects of leakage in the presence of large optical loss.

© 2002 Optical Society of America

Polarization compensation: a passive approach to a reducing heterodyne interferometer nonlinearity

Oliver P. Lay and Serge Dubovitsky
Opt. Lett. 27(10) 797-799 (2002)

Spectrometry with frequency combs

S. Schiller
Opt. Lett. 27(9) 766-768 (2002)

Coaxial Mirau interferometer

Adrian Dobroiu, Hiroshi Sakai, Hitoshi Ootaki, Manabu Sato, and Naohiro Tanno
Opt. Lett. 27(13) 1153-1155 (2002)

Spatially separated heterodyne grating interferometer for eliminating periodic nonlinear errors

Xu Xing, Di Chang, Pengcheng Hu, and Jiubin Tan
Opt. Express 25(25) 31384-31393 (2017)

Nonlinear phase noise generated in air–silica microstructure fiber and its effect on carrier-envelope phase

Tara M. Fortier, Jun Ye, Steven T. Cundiff, and Robert S. Windeler
Opt. Lett. 27(6) 445-447 (2002)