Optical waveguides – With optical coupler – Switch
Reexamination Certificate
2005-01-25
2005-01-25
Palmer, Phan T. H. (Department: 2874)
Optical waveguides
With optical coupler
Switch
C008S094240, C008S128100, C008S132000, C008S149000
Reexamination Certificate
active
06847751
ABSTRACT:
A structure for effecting a transition from a passive waveguide to an active waveguide or from an active waveguide to a passive waveguide of the present invention. The inventive device comprises a first cladding; a first core disposed within the first cladding; and a ground plane disposed over the first cladding and the core. A second cladding is disposed on the ground plane. A second core is disposed on the second cladding. A third cladding is disposed on the second cladding and the second core and an electrode is disposed on top of the third cladding. The inventive structure enables the construction of a novel an advantageous switch comprising an input port; an output port; and plural waveguides disposed between the input port and the output port. Each waveguide includes a first cladding; a first core disposed within the first cladding; and a ground plane disposed over the first cladding and the core. A second cladding is disposed on the ground plane. A second core is disposed on the second cladding. A third cladding is disposed on the second cladding and the second core and an electrode is disposed on top of the third cladding. The inventive structure also enables a unique and advantageous router design comprising an active tuned arrayed waveguide grating and switching logic for controlling the grating.
REFERENCES:
patent: 4781424 (1988-11-01), Kawachi et al.
patent: 6229949 (2001-05-01), Ido et al.
K. Kato and Y. Tohmori, “PLC hybrid integration technology and its application to photonic components”IEEE Journal of Selected Topics in Quantum Electronics, vol. 6, No. 1, Jan/Feb 2000.
L. Ketelsen et al., “Electro-absorption modulated 1.55um wavelength selective DFB array using hybrid integration,” Proceedings of OFC99, 1999, paper PD4-1.
S. Garner et al., “Three dimensional integrated optics using polymers,” IEEE Journal of Quantum Electronics, vol. 35, No. 8, Aug. 1999.
N. Keil et al., “Thermal-optic vertical coupler switches using polymer/silica integration technology,” Electronics Letters, vol. 36, No. 5, Mar. 2000.
Bachmann M., Besse P., Melchior H., “General self-imaging properties in NxN mulitmode interference couplers including phase relations.” Applied Optics, vol. 33, No. 18, pp. 3905-11, 1994.
Ferreras A. et al., “Useful formulas for multimode interference power splitter/combiner design.” IEEE Photonics Technoloy Letters, vol. 5, No. 10, pp. 1224-27, 1993.
Jenkins et al., “Novel 1xN and NxN integrated optical switches using self-imaging multimode GaAs/A1GaAs waveguides.” Applied Physics Letters, vol. 64, No. 6, pp 684-686, 1993.
Smit, M. and van Dam, C. PHASAR-Based WDM Devices:Princples, Design, and Applications. IEEE Journal of Selected Topics in Quantum Electronics, vol. 2, No. 2, pp. 236-250, 1996.
Azfar Talal
Chang Daniel H.
Fetterman Harold R.
Michael Joseph
Benman, Brown & Williams
Pacific Wave Industries, Inc.
Palmer Phan T. H.
LandOfFree
Ultra-high speed, active polymer-silica hydrid, single... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ultra-high speed, active polymer-silica hydrid, single..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultra-high speed, active polymer-silica hydrid, single... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3393674