Optical waveguides – With optical coupler – Switch
Reexamination Certificate
2007-08-07
2007-08-07
Font, Frank G. (Department: 2883)
Optical waveguides
With optical coupler
Switch
C385S016000, C385S017000, C398S045000, C398S048000, C398S049000, C398S050000, C398S079000, C398S082000, C398S083000, C398S084000, C398S087000
Reexamination Certificate
active
10879639
ABSTRACT:
An optical switch for routing arbitrary wavelengths between optical fibers in optical networks. The optical switch may include a highly wavelength dispersive element together with a spatially dispersive element to separate the wavelengths. Broadband switch inputs and outputs may be provided for adding and dropping arbitrary wavelengths at each node of the network. Fiber demultiplexers and multiplexers may also be used to reduce the impact of mirror array yield on switch functionality.
REFERENCES:
patent: 4244045 (1981-01-01), Nosu et al.
patent: 5859717 (1999-01-01), Scobey et al.
patent: 5960133 (1999-09-01), Tomlinson
patent: 6097859 (2000-08-01), Solgaard et al.
patent: 6285500 (2001-09-01), Ranalli et al.
patent: 6389190 (2002-05-01), Sogaard et al.
patent: 6501877 (2002-12-01), Weverka et al.
patent: 6549699 (2003-04-01), Belser et al.
patent: 6750995 (2004-06-01), Dickson
patent: 7072539 (2006-07-01), Wu et al.
patent: 7088882 (2006-08-01), Ducellier et al.
patent: 2003/0031406 (2003-02-01), Saida et al.
patent: 2003/0215179 (2003-11-01), Mcguire
patent: 2004/0067014 (2004-04-01), Hollars et al.
patent: 2005/0063641 (2005-03-01), Neilson et al.
patent: WO01/57902 (2001-08-01), None
Tsai, J.C. et al., “1xN2 Wavelength-selective switches with high fill-factor two-axis analog micromirror arrays”, OFC 2004, Ls QAngeles, Paper MF42 (2004).
Patel, J.S. et al., “Liquid Crystal and Grating-Based Multiple-Wavelength Cross-Connect Switch”, IEEE Photonics Technology Letters, vol. 7, No. 5, May 1995, pp. 514-516.
Suzuki, S. et al., “Integrated MuItichannel Optical Wavelength Selective Switchse Incorporating an Arrayed-Waveguide Grating Multiplexer and Thermooptic Switches,” J. of Lightwave Technology, 16(4), pp. 650-655 (Apr. 1998).
Lin, L.Y. et al., “On the expandability of free-space micromachined optical cross connects,” J. Lightwave Tecnol., vol. 18, pp. 482-489, Apr. 2000.
D.M. Marom, D.M. et al., “Wavelength-selective 1x4 switch for 128 WDM channels at 50 GHz spacing,” OFC 2002 PostDeadline papers, FB7-1, (2002).
Zheng, X. et al., “3D MEMS Photonic cross-connect switch design and performance”, IEEE Journal of Selected Topics in Quantum Electronics, 9(2), 571-578 (Mar./Apr. 2003).
Tsai, J.C. et al. “1xN2 Wavelength-selective switches with high fill-factor two-axis analog micromirror arrays”, OFC 2004, Los Angeles, Paper MF42 (2004). nttp://www.Photonics.ucla.edu/pdf/IPL—UCLA—JCTsai—OFC—2004—idI55.pdf.
Tsai, J.C. et al., “Open-Loop Operation of MEMS-Based 1xNWavelength-Selective Switch With Long-Term Stability and Repeatability” IEEE Photonics Technology Letters, 16(4), pp. 1041-1043 (Apr. 2004). http://www.photonics.ucla.edu/pdf/IPL—UCLA—JCTsai—PhotonicsTechnologyLetters—2004—id157.pdf.
J.I. Dadap et al. “Modular MEMS-Based Optical Cross-Connect With Large Port-Count”, IEEE Photonics Technology Letters, vol. 15, No. 12, Dec. 2003, pp. 1773-1775.
Helkey Roger Jonathan
Yuan Shifu
Zheng Xuezhe
Blakely , Sokoloff, Taylor & Zafman LLP
Calient Networks, Inc.
Dupuis Derek L.
Font Frank G.
LandOfFree
Wavelength routing optical switch does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wavelength routing optical switch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wavelength routing optical switch will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3837141