Optical fiber communication systems having simultaneous...

Optical communications – Transmitter and receiver system – Including compensation

Reexamination Certificate

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C398S152000, C398S158000

Reexamination Certificate

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07079777

ABSTRACT:
In accordance with the invention, an optical fiber communication system is provided with a tunable linearly chirped Bragg grating in high birefringence fiber for reduction of polarization mode dispersion without increasing chromatic dispersion. A first embodiment using a single grating can be tuned for optimal PMD compensation, optimal chromatic compensation or optimal simultaneous compensation. Alternative embodiments using a plurality of gratings permit simultaneous compensation of both PMD and chromatic dispersion.

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Lee, S., et al., “Adjustable compensation of Polarization Mode Dispersion using a High-Birefringence Nonlinearly Chirped Fiber Bragg Grating”, IEEE Photonic Technology letters, vol. 11, No. 10, pp. 1277-1279 (Oct. 1999).
Pan, Z., et al., “Chirp-Free Tunable PMD Compensation using hi-bi nonlinearly chirped FBGs in a dual-pass configuration”, presented at OFC, Baltimore, VA, ThH2-1 / 113-115.
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Watley, D. A., et al., “Compensation of polarisation-mode dispersion exceeding one bit period using single high-birefringence fibre”, Electronics Letters, vol. 35, No. 13 (Jun. 24, 1999).
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