Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1999-02-01
2000-08-15
Pascal, Leslie
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359158, 359177, 359183, H04B 1000
Patent
active
061045152
ABSTRACT:
A high-order polarization mode dispersion (PMD) compensation arrangement compensates for PMD in an optical signal using a temporal imaging technique. An optical data input signal to the PMD compensator arrangement includes first and second polarization components for each bit of data that have been subjected to PMD. In the PMD compensation arrangement a clock recovery arrangement generates an electrical clock output control signal including a predetermined phase modulation depth and phase and a data rate of the received optical input data signal. A phase modulator is responsive to the optical input data signal and the electrical clock output control signal from the clock recovery arrangement for generating an optical output signal. In this optical output signal, the phase of the first and second polarization components associated with each data bit are delayed by a predetermined amount. A dispersive unit introduces a predetermined amount of dispersion to the first and second polarization components in the optical output signal from the phase modulator for generating an output optical signal from the PMD compensation arrangement wherein the first and second polarization components for each data bit are in phase.
REFERENCES:
patent: 5822100 (1998-10-01), Robinson et al.
patent: 5859939 (1999-01-01), Fee et al.
patent: 5930414 (1998-10-01), Fishman et al.
Article entitled "Polarization Mode Dispersion: Foundamentals and Impact on Optical Communication Systems" by F. Heismann, European Confeence on Optical Communication (ECOC'98), vol. 2, pp. 51-79, 1998.
Article entitled "Finer-Based Distributed PMD Compensation at 20 GB/S" by R. Noe et al., 1993, European Conference on Optical Communication (ECOC'98), vol. 3, pp. 157-159, 1998.
Article entitled "Electronic Equalization of Fiber PMD-Induced distortion at 10 Gbit/s" by H. Bullow et al., Optical Fiber Commuication Technical Digest (OFC'98), pp. 151-152, 1998.
Article entitled "Polarization Mode Dispersion Compensation by Phase Diversity Detection" by B. W. Hakki, IEEE Photonics Technology Letters, vol. 9, No. 1, pp. 121-123, Jan. 1997.
Otera Corporation
Pascal Leslie
Phan Hanh
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