Nonlinear distributed optical fiber sensing

Alan J. Rogers

doi:10.1117/12.141301

5 March 1993 Nonlinear distributed optical fiber sensing

Alan J. Rogers

Proceedings Volume 1797, Distributed and Multiplexed Fiber Optic Sensors II; (1993) https://doi.org/10.1117/12.141301
Event: Fibers '92, 1992, Boston, MA, United States

Abstract

Distributed optical-fiber sensing (DOFS) offers full information on the spatial and temporal behavior of a large number of measurand fields. Among potential applications are the monitoring and control of any large structure (including `smart' systems), and a range of environmental monitoring requirements. Methods for realizing DOFS hitherto have relied, almost exclusively, on linear backscatter techniques. A notable exception is the Raman temperature measurement system, which relies on non-linear backscatter. New explorations are concerned to investigate the possibility of utilizing other non-linear effects in either backscatter or forward-scatter arrangements. Forward-scatter methods utilize the non-linear interaction between counter-propagating light signals in a single-mode optical fiber; these hold promise for markedly improved signal levels, with consequent measurement accuracies of approximately 1%, and spatial resolutions approximately 0(DOT)1 m over distances up to 1 km. Attention recently has concentrated on the use of the optical Kerr effect. Two ways in which this effect may be used in DOFS are described. Recent experimental results are presented and remaining problems are defined.

Citation Download Citation

Alan J. Rogers "Nonlinear distributed optical fiber sensing", Proc. SPIE 1797, Distributed and Multiplexed Fiber Optic Sensors II, (5 March 1993); https://doi.org/10.1117/12.141301

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available