Polarization scrambler and a method for polarization scrambling

Details Polarization scrambler and a method for polarization scrambling Polarization scrambler and a method for polarization scrambling

2006-05-16

2006-05-16

Boutsikaris, Leonidas (Department: 2872)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C359S281000, C359S484010, C385S011000

Reexamination Certificate

active

07046416

ABSTRACT:
A polarization scrambler and associated method for polarization scrambling are provided, wherein light is passed through a retarder whose eigen modes and delay vary with time and which is driven with alternating signals at two harmonic frequencies. One exemplary embodiment with an electrooptical wave plate operates with a horizontal or vertical input polarization and supplies output polarizations which vary with time and have uncorrelated normalized Stokes parameters. The polarization scrambler which is produced can be used in devices for detection of polarization mode dispersion.

REFERENCES:
patent: 4923290 (1990-05-01), Brinkmeyer et al.
Heismann, F., Compact Electro-Optic Polarization Scramblers for Optically Amplified Lightwave Systems, Journal of Lightwave Technology, vol. 14, No. 8, Aug. 1996, pp. 1801-1814.
Noé, R. et al, “150fs Online PMD Detection Within 5μs”, http:ont/upb.de.
Noé, R. et al, “Depolariser based on acousto-optical TE-TM converters for suppression of polarization holeburning in long haul EDFA links”, Electronic Letters, vol. 30 No. 18. (Sep. 1, 1994).

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