Polarized lightwave reflectometry method (POTDR)

Details Polarized lightwave reflectometry method (POTDR) Polarized lightwave reflectometry method (POTDR)

2008-04-22

2008-04-22

Nguyen, Tu T (Department: 2886)

Optics: measuring and testing

For optical fiber or waveguide inspection

Reexamination Certificate

active

11467992

ABSTRACT:
A polarized lightwave reflectometry method including the steps of sending at least two polarized light signals into the optical fiber to be tested, the signals presenting a determined angular offset relative to each other so that the polarization mode dispersion coefficient remains independent of any rotation of polarization in the optical fiber under test; extracting a scalar parameter of the relative noise type for each trace obtained by back-scattering of the light signal; and estimating the polarization mode dispersion coefficient by a function having a single scalar input, which function is of the type based on exponentials and has the form exp (a+bP+cP−1).

REFERENCES:
patent: 4997277 (1991-03-01), Horiguchi et al.
patent: 6229599 (2001-05-01), Galtarossa
patent: 6504604 (2003-01-01), Holland
patent: 6724469 (2004-04-01), Leblanc
patent: 19825876 (1999-12-01), None
patent: 0 681 172 (1995-11-01), None
patent: 0433020 (2001-06-01), None
“PMD Measurement With a Polarization-OTDR”; Wuipart, et al.; XP-001158413; Sep. 12, 2002.
“Distributed PMD Measurement With a Polarization-OTDR in Optical Fibers”; Hunters, et al.; p. 1843-1848; IEEE, 1999.
“High Sensitivity and Submillimeter Resolution Optical Time-Domain Reflectometry Based on Low-Coherence Interference;” Takada, et al.; IEEE 1992.
Patent Abstracts of Japan; 2002048680; Aug. 1, 2000; Takeshi.
A Galtarossa et al., “Single-End Polarization Mode Dispersion Measurement Using Backreflected Spectra Through a Linear Polarizer”, Journal of Lightwave Technology, IEEE, NY, US vol. 17, No. 10, Oct. 1999 pp. 1835-1842, XP000984134.
A. Galtarossa, Polarization-Sensitive Reflectometric Techniques for PMD Measurements, XP-001035400, 25thEuropean Conference on Optical Communication. (ECOC '99). Nice, France Sep. 27-30, 1999, Sep. 26, 1999.

Affiliated with

Also associated with

Rating

Polarized lightwave reflectometry method (POTDR) does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polarized lightwave reflectometry method (POTDR), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polarized lightwave reflectometry method (POTDR) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3913218