High-resolution zero-dispersion wavelength mapping in single mod

Details High-resolution zero-dispersion wavelength mapping in single mod High-resolution zero-dispersion wavelength mapping in single mod

1999-02-19

2000-09-12

Font, Frank G.

Optics: measuring and testing

For optical fiber or waveguide inspection

385 27, G01N 2100

Patent

active

06118523&

ABSTRACT:
An accurate and simplified method of non-destructively measuring the zero-dispersion wavelength along the length of a single-mode fiber is disclosed. The method includes the steps of measuring the FWM intensity of the optical fiber at a plurality of wavelengths, plotting the measured FWM intensity at each of the plurality of wavelengths to obtain a curve representative of the FWM intensity of each of the plurality of wavelength, and performing a non-linear inversion on the curve to obtain the zero-dispersion wavelength along the length of the fiber.

REFERENCES:
M. Ohashi and M. Tateda, Novel Technique for Measuring Longitudinal Chromatic Dispersion Distribution in Singlemode Fibres, 29 Electronic Letters 426-428 (1993).
Hiroshi Onaka et al., Measuring the Longitudinal Distribution of Four-Wave Mixing Efficiency in Dispersion-Shifted Fibers, 6 IEEE Photonics Tech. Letters 1454-1456 (1994).
Y. Suetsugu et al., Measurement of Zero-Dispersion Wavelength Variation in Concatenated Dispersion-Shifted Fibers by Improved Four-Wave-Mixing Technique, 7 IEEE Photonics Tech. Letters 1459-1461 (1995).
S. Nishi and M. Saruwatari, Technique for Measuring the Distributed Zero Dispersion Wavelength of Optical Fibres Using Idler Pulse Generation Caused by Modulation Instability, 32 Electronics Letters 579-581 (1996).
L. F. Mollenauer et al., Method for Facile and Accurate Measurement of Optical Fiber Dispersion Maps, 21 Optics Letters 1724-1726 (1996).
Michael Eiselt et al., Nondestructive Position-Resolved Measurement of the Zero-Dispersion Wavelength in an Optical Fiber, 15 J. Lightwave Tech. 135-143 (1997).

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