Optical waveguides – With optical coupler – Input/output coupler
Reexamination Certificate
2008-01-29
2008-01-29
Doan, Jennifer (Department: 2874)
Optical waveguides
With optical coupler
Input/output coupler
C385S015000, C385S031000
Reexamination Certificate
active
10829611
ABSTRACT:
A tunable optical add-drop multiplexer (OADM) based on an SOI (silicon-on-insulator) wafer is disclosed. The tunable OADM includes a multimode interference region, at least a grating formed on the multimode interference region, and at least two electrodes formed on two sides of the multimode interference region and having carriers induced thereinto, thereby a variation of an optical waveguide in the grating is controlled through controlling the carriers induced into the electrodes so as to further control different propagation of wavelength signals.
REFERENCES:
patent: 5875272 (1999-02-01), Kewitsch et al.
patent: 5953467 (1999-09-01), Madsen
patent: 6047096 (2000-04-01), Augustsson
patent: 6438293 (2002-08-01), Eldada et al.
patent: 63-76391 (1988-04-01), None
Rodney C. Tucker and Richard Lauder, “Optical Add-Droop Multiplexer with Low Crosstalk”, IEEE Photonics Technology Letters, vol. 13, No. 6, pp. 582-584, Jun. 2001.
David Mechin, Philippe Grosso, and Dominque Bosc, “Add-Drop Multiplexer With UV-Written Bragg Gratings and Directional Coupler in Sio2-Si Intergrated Waveguides”, Journal of Lightwave Technology, vol. 19, No. 9, pp. 1282-1286, Sep. 2001.
Shih-Hsiang Hsu, O. King, F.G. Johnson, J.V. Hryniewicz, Y.J. Chen and D.R. Stone, “InGaAspindetector array intergrated with AlGaAs/GaAs grating demultiplexer by total internal reflector”, Electronics Letters vol. 35, No. 15, pp. 1248-1249, Jul. 1999.
Tien Chang-Hung
Tsai Chun-Wei
Tsao Shyh-Lin
Doan Jennifer
National Taiwan Normal University
Volpe and Koenig P.C.
LandOfFree
Tunable optical add-drop multiplexer based on SOI wafer and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tunable optical add-drop multiplexer based on SOI wafer and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tunable optical add-drop multiplexer based on SOI wafer and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3940146