The bichromatic optical frequency correlation function for Rayleigh backscattering from a pulse of laser light propagating along a single-mode optical fiber has been calculated and measured. It is shown that the optical correlation frequency, Δνc , is equal to the reciprocal of pulse width Tw . These results are important for the development of wavelength diversity techniques for the reduction of coherent Rayleigh noise in distributed Rayleigh backscattering single-mode optical fiber sensors.
© 2001 Optical Society of America
[Optical Society of America ]
(030.6600) Coherence and statistical optics : Statistical optics
(060.2300) Fiber optics and optical communications : Fiber measurements
(060.2370) Fiber optics and optical communications : Fiber optics sensors
Marc D. Mermelstein, Ralph Posey, Jr., Gregg A. Johnson, and Sandeep T. Vohra, "Rayleigh scattering optical frequency correlation in a single-mode optical fiber," Opt. Lett. 26, 58-60 (2001)