A detailed comparison between a low-finesse Fabry–Perot cavity and a typical two-beam interferometer is developed and checked experimentally. The consequences of approximating the true Fabry–Perot function by the two-beam function are evaluated for commonly used signal-processing schemes in order to quantify the final error introduced in various fiber sensing schemes employing this configuration.
© 1992 Optical Society of America
Original Manuscript: March 5, 1992
Published: December 1, 1992
J. L. Santos, A. P. Leite, and D. A. Jackson, "Optical fiber sensing with a low-finesse Fabry–Perot cavity," Appl. Opt. 31, 7361-7366 (1992)