Optical Backscatter Reflectometer 4600 177
User Guide
Once the data has been transformed back into the frequency-domain, the calibrated
amplitude response yields the loss of the test device. The derivative of the phase
response yields the group delay.
Fiber Interferometry: References
B. Soller, D. Gifford, M. Wolfe and M. Froggatt, “High resolution optical frequency
domain reflectometry for characterization of components and assemblies,” Optics
Express, 13:666-674, Jan. 2005.
B. J. Soller, M. Wolfe, M. E. Froggatt, “Polarization resolved measurement of
Rayleigh backscatter in fiber-optic components,” paper NWD3, OFC Technical
Digest, Los Angeles, March 2005.
M. Froggatt, T. Erdogan, J. Moore, S. Shenk, “Optical frequency domain
characterization
(OFDC) of dispersion in optical fiber Bragg gratings,” FF2, Special
Meeting on Bragg Gratings,
Photosensitivity,
and Poling in Glass
Waveguides,
Sept.
1999.
M.M. Ohn, S.Y. Huang, S. Sandgren, R. Measures, T. Alavie,
“Measurement
of fiber
grating properties using an interferometric and
Fourier-transform-based
technique,”
WJ2, Optical Fiber Communication Conference, March 1997.
M. Froggatt, J. Moore, and T. Erdogan, “Full complex transmission and reflection
characterization of a Bragg grating in a single laser sweep,” WB1, Optical Fiber
Communication Conference, March 2000.
M. Froggatt, E. Moore, and M. Wolfe, “Interferometric measurement of dispersion
8
in optical components,” WK1, Optical Fiber Communication Conference, March
2002.
U. Glombitza and E. Brinkmeyer, “Coherent frequency-domain reflectometry for
characterization of single-mode integrated-optical waveguides,” J. Lightwave Tech.
11, 1377-1384, 1993.
Resolution Bandwidth Calculations
Because the frequency- and
time-domain
data are related to one another by a discrete
Fourier transform, the width of the visible window in the time domain determines
the resolution of the data in the frequency (wavelength) domain. If the width of the
visible portion of the time domain is denoted
∆t
f
and given in units of nanoseconds,
then the resolution bandwidth (RBW) of the frequency domain data is given by
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