Optical: systems and elements – Polarization without modulation – By relatively adjustable superimposed or in series polarizers
Reexamination Certificate
2005-11-10
2008-03-25
Lavarias, Arnel (Department: 2872)
Optical: systems and elements
Polarization without modulation
By relatively adjustable superimposed or in series polarizers
C359S629000
Reexamination Certificate
active
07349157
ABSTRACT:
An optical splitting device is intended to receive at an input two beams of different wavelengths. The device includes a polarizing beam splitter designed to selectively transmit part of the beam having one of the wavelengths towards a first output or a second output depending on the polarization of said beam. The device further includes a polarization variation system placed upstream of the polarizing beam splitter. By combining the polarization variation device with the polarizing beam splitter it is possible to adjust the distribution of the energy of a beam between the two outputs of the device. Such a splitting device is advantageously incorporated into an optical communication terminal.
REFERENCES:
patent: 5082354 (1992-01-01), Kalmanash
patent: 5694233 (1997-12-01), Wu et al.
patent: 2002/0030866 (2002-03-01), Wu et al.
patent: 2004/0207919 (2004-10-01), Chen et al.
Benchetrit Thierry
Le Hors Lénaïc Alban
EADS Astrium Sas
Lavarias Arnel
Miller Matthias & Hull
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