Optical: systems and elements – Optical modulator – Light wave temporal modulation
Reexamination Certificate
2004-04-21
2008-07-29
Amari, Alessandro (Department: 2872)
Optical: systems and elements
Optical modulator
Light wave temporal modulation
C385S037000
Reexamination Certificate
active
07405855
ABSTRACT:
A tunable optical filter comprising an index grating produced in a waveguide defining a longitudinal direction of propagation of an incident optical signal, said grating being defined by a plurality of optical parameters, is characterized in that the optical guide contains semiconductor nanoparticles and in that the index grating is made up of a refractive index variation in the guide that is at least partly induced by a Kerr effect linked to the 3rdorder dielectric susceptibility (χ3) of said nanoparticles, at least one of said parameters of said index grating being modified by application of an optical control signal coupled into the guide and propagating longitudinally in said guide.
REFERENCES:
patent: 5023139 (1991-06-01), Birnboim et al.
patent: 2002/0085605 (2002-07-01), Hatori
patent: 2003/0016907 (2003-01-01), LoCascio et al.
patent: 2 241 348 (1992-08-01), None
patent: WO 03/012500 (2003-02-01), None
patent: WO 03/025626 (2003-03-01), None
A. Melloni et al, “All-Optical Switching In Phase-Shifted Fiber Bragg Grating”, IEEE Photonics Technology Letters, IEEE, Inc., New York, US, vol. 12, No. 1, Jan. 2000, pp. 42-44, XP000912613.
Y. Jeong et al, All-Optical Signal Gating in Cascaded Photonics Technology Letters, IEEE Photonics Technology Letters, IEEE, Inc., New York, US, vol. 12, No. 9, Sep. 2000, pp. 1216-1217, XP000968646.
P. Nandakumar ete al, “Quantum size effects on the third order optical nonlinerarity of CdS quantum dots in Nafion”, Optics Communications, North-Holland Publishing Co., Amsterdam, NL, vol. 185, No. 4-6, Nov. 15, 2000, pp. 457-465, XP004223709.
Belouet Christian
Riant Isabelle
ALCATEL
Amari Alessandro
LandOfFree
Reconfigurable optical filter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Reconfigurable optical filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reconfigurable optical filter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3962493