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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 40, Iss. 1 — Jan. 1, 2001
  • pp: 150–156

Wavelength-dependent measurements of optical-fiber transit time, material dispersion, and attenuation

Kyle Cochrane, James E. Bailey, Patrick Lake, and Alan Carlson  »View Author Affiliations


Applied Optics, Vol. 40, Issue 1, pp. 150-156 (2001)
http://dx.doi.org/10.1364/AO.40.000150


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Abstract

A new, to our knowledge, method for measuring the wavelength dependence of the transit time, material dispersion, and attenuation of an optical fiber is described. We inject light from a 4-ns rise-time pulsed broadband flash lamp into fibers of various lengths and record the transmitted signals with a time-resolved spectrograph. Segments of data spanning a range of approximately 3000 Å are recorded from a single flash-lamp pulse. Comparison of data acquired with short and long fibers enables the determination of the transit time and the material dispersion as functions of wavelength dependence for the entire recorded spectrum simultaneously. The wavelength-dependent attenuation is also determined from the signal intensities. The method is demonstrated with experiments using a step-index 200-µm-diameter SiO2 fiber. The results agree with the transit time determined from the bulk glass refractive index to within ±0.035% for the visible (4000–7200-Å) spectrum and 0.12% for the UV (2650–4000-Å) spectrum and with the attenuation specified by the fiber manufacturer to within ±10%.

© 2001 Optical Society of America

OCIS Codes
(060.2300) Fiber optics and optical communications : Fiber measurements
(060.2310) Fiber optics and optical communications : Fiber optics

History
Original Manuscript: June 5, 2000
Published: January 1, 2001

Citation
Kyle Cochrane, James E. Bailey, Patrick Lake, and Alan Carlson, "Wavelength-dependent measurements of optical-fiber transit time, material dispersion, and attenuation," Appl. Opt. 40, 150-156 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-1-150

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