Optical waveguides – With optical coupler – Particular coupling structure
Reexamination Certificate
2011-06-21
2011-06-21
Rojas, Omar (Department: 2874)
Optical waveguides
With optical coupler
Particular coupling structure
C385S014000, C703S002000
Reexamination Certificate
active
07965914
ABSTRACT:
A microring resonator and methods critically couple a microring waveguide to an adjacent bus waveguide. A method of determining parameters of a critically coupled microring resonator includes modeling a coupled portion of the microring resonator as a U-shaped waveguide spaced apart from a straight waveguide by a gap and selecting a straight waveguide width and a gap size to optimize an output coupling ratio between the U-shaped waveguide and the straight waveguide. A method of producing the microring resonator includes using the determined parameters to produce, and a critically coupled microring resonator includes, a ring-shaped or microring waveguide spaced from the bus waveguide by a gap.
REFERENCES:
patent: 6052495 (2000-04-01), Little et al.
patent: 6885794 (2005-04-01), Scheuer et al.
patent: 6907152 (2005-06-01), Takahashi et al.
patent: 7123800 (2006-10-01), Kaplan
patent: 7424192 (2008-09-01), Hochberg et al.
patent: 7536070 (2009-05-01), Rosa de Almeida et al.
patent: 2006/0062523 (2006-03-01), Guo et al.
patent: 2006/0171635 (2006-08-01), Lee et al.
S. C. Hagness et al.,“FDTD Microcavity Simulations: Design and Experimental Realization of Waveguide-Coupled Single-Mode Ring and Whispering-Gallery-Mode Disk Resonators,” Journal of Lightwave Technology, vol. 15, No. 11, Nov. 1997, pp. 2154-2165.
M. K. Chin et al., “Design and Modeling of Waveguide-Coupled Single-Mode Microring Resonators,” Journal of Lightwave Technology, vol. 16, Issue 8, 1998, pp. 1433-1446.
Shijun Xiao et al., “Compact silicon microring resonators with ultra-low propagation loss in the C band,” Optics Express, vol. 15, No. 22, Oct. 29, 2007, pp. 14467-14475.
Ye Liu et al., “Coupled mode theory for modeling microring resonators,” Optical Engineering, vol. 44, No. 8, Aug. 2005, pp. 084601-1 to 084601-6.
Shengmei Zheng et al., “Microring resonator-coupled waveguide crossings in silicon nitride: waveguide width tuning,” Group IV Photonics, 2004. First IEEE International Conference on, Sep. 29-Oct. 1, 2004, pp. 25-27.
Vittorio M. N. Passaro et al.,“Ammonia Optical Sensing by Microring Resonators,” Sensors, 2007, vol. 7, pp. 2741-2749.
Donald S. Gardner et al.,“Microring and microdisk optical resonators using silicon nanocrystals and erbium prepared using silicon technology,” Optical Materials, vol. 27, 2005, pp. 804-811. (Available online Oct. 18, 2004, www.sciencedirect.com).
Qianfan Xu et al., “Silicon microring resonators with 1.5-μm radius,” OPTICS EXPRESS, vol. 16, No. 6, Mar. 14, 2008, pp. 4309-4315.
Beausoleil Raymond G.
Fattal David A.
Xu Qianfan
Hewlett--Packard Development Company, L.P.
Rojas Omar
LandOfFree
Critically coupled microring resonator and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Critically coupled microring resonator and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Critically coupled microring resonator and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2653315