Optical waveguides – Integrated optical circuit
Reexamination Certificate
2005-05-03
2005-05-03
Lee, John R. (Department: 2881)
Optical waveguides
Integrated optical circuit
C385S010000, C385S016000
Reexamination Certificate
active
06888973
ABSTRACT:
A photonic circuit includes a tunable drop filter arrangement that includes a plurality of resonators. The drop filter arrangement is tuned to remove a selected frequency from an input data stream from a waveguide. A wavelength sensor coupled to the drop filter to monitor the selected frequency to which the drop filter arrangement has been tuned. A tunable laser presents a new signal of a defined frequency indicative of a signal to be added to the input data stream. A modulator coupled to the tunable laser for receiving the new signal and forming a modulated signal. An add filter arrangement coupled to the modulator for receiving the modulated signal and adding the modulated signal to the data stream.
REFERENCES:
patent: 5608572 (1997-03-01), Nitta et al.
patent: 6243401 (2001-06-01), Lee
patent: 6310969 (2001-10-01), Kim et al.
patent: 6330254 (2001-12-01), Hung
patent: 6330378 (2001-12-01), Forrest et al.
patent: 6333941 (2001-12-01), Hung
patent: 6424763 (2002-07-01), Villeneuve et al.
patent: 6567573 (2003-05-01), Domash et al.
patent: 0 238 082 (1987-03-01), None
patent: 0 818 894 (1998-01-01), None
patent: WO 9715851 (1997-05-01), None
patent: WO 0131387 (2001-05-01), None
patent: WO 0161903 (2001-08-01), None
patent: WO 0181962 (2001-11-01), None
“Integrated Real Time Multi-channel wavelength monitoring circuit using phased-array waveguide grating,” Zhong et al.Optical Fiber Communication Conference and the International Conference on Integrated Optics and Optical Fiber Communications. Feb., 1999. San Diego, CA.
Kolodziejski Leslie
Petrich Gale S.
Gauthier & Connors LLP
Gurzo Paul M.
Lee John R.
Massachusetts Institute of Technology
LandOfFree
Tunable optical add/drop multiplexer with multi-function... 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 with multi-function..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tunable optical add/drop multiplexer with multi-function... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3407095