A concept for an all-waveguide fiber-optic rotation sensor is discussed, and the results of preliminary tests of key elements are described. A single channel waveguide coupler design provides the functions of an optical switch, a 3-dB beam splitter, a phase retarder, and a signal modulator, all of which may be formed on the same chip and interconnected by channel single-mode waveguides. Preliminary test results for the waveguide coupler and for a rotation sensor without the coupler are presented. Signal processing, polarization control, and interconnection of the waveguide components are discussed.
© 1980 Optical Society of America
W. C. Goss, R. Goldstein, M. D. Nelson, H. T. Fearnehaugh, and O. G. Ramer, "Fiber-optic rotation sensor technology," Appl. Opt. 19, 852-858 (1980)