Optical waveguides – Integrated optical circuit
Reexamination Certificate
2006-09-19
2006-09-19
Kianni, Kaveh (Department: 2883)
Optical waveguides
Integrated optical circuit
C385S018000, C385S037000
Reexamination Certificate
active
07110627
ABSTRACT:
This invention discloses a “reflective arrayed waveguide grating,” (RAWG) for demultiplexing a multiplexed optical signal into its component wavelengths and for multiplexing n optical signals into a multiplexed signal. The present invention found that a single slab can be used for coupling the signal in and for focusing the signal out of the array of waveguide that functions as a grating; and a single external fiber array interface containing plurality of fibers can be used for both inputting the signal in and for outputting the signal from the RAWG. Advantageously, this method reduces the chip size and on-chip insertion loss by eliminating a slab and using 50% shorter waveguides in the array allowing significant savings of the silicon real estate. The smaller chip size increases the reliability of the device significantly and almost doubles the yield of chips per wafer. Additionally, used as a building block, these chips can enable further functionality enhancement via tiers of monolithic triple-phase integration.
REFERENCES:
patent: 4973429 (1990-11-01), Decher et al.
patent: 5208111 (1993-05-01), Decher et al.
patent: 5396507 (1995-03-01), Kaminow et al.
patent: 5546483 (1996-08-01), Inoue et al.
patent: 6051372 (2000-04-01), Bayerl et al.
patent: 6122419 (2000-09-01), Kurokawa et al.
patent: 6188818 (2001-02-01), Han et al.
patent: 6278813 (2001-08-01), Takada et al.
patent: 6456760 (2002-09-01), Kurokawa et al.
patent: 6720093 (2004-04-01), Samuel et al.
patent: 6769274 (2004-08-01), Cho et al.
patent: 6859574 (2005-02-01), Doerr et al.
patent: 6892003 (2005-05-01), Katayama et al.
patent: 2001/0033715 (2001-10-01), Delisle et al.
patent: 2004/0105610 (2004-06-01), Rahman
patent: 2004/0208417 (2004-10-01), Purchase et al.
patent: 2005/0135778 (2005-06-01), Dominic et al.
K. Okamoto; “Fundamentals of Optical Waveguides, Ch. 9”; Academic Press, New York 2000.
K.M.A. Rahman, C.J. Durning, N.J. Turro and D.A. Tomalia; “Adsorption of Poly(amido amine) Dendrimers on Gold”; Langmuir2000, vol. 16; pp. 10154-10160.
K.M. Anis Rahman, Christopher J. Durning and Nicholas J. Turro; “Molecular Dynamics of PAMAM Dendrimers”; http://dwdm2.home.comcast.net/p-amamdynamics.pdf.
Dendritic Nano Technologies website at http://dnanotech.com/properties.html.
Akira Otomo, Sonoko Otomo, Shiyoshi Yokoyama, Tatuso Nakahama, Shinro Mashiko; “Remarkable optical properties of dendrimers for laser applications”; Linear and Nonlinear Optics of Organic Materials; Manfred Eich and Mark G. Kuzyk—Editors; Proceedings of SPIE; vol. 4461; pp. 180-187; 2001.
Alex K. Y. Jen, Hong Ma, Takafumi Sassa, Sen. Liu, S. Suresh, Larry R. Dalton, and Marnie Haller; “Highly efficient and thermally stabler organic/polymeric electro-optic materials by dendritic approach”; Linear and Nonlinear Optics of Organic Materials; Manfred Eich and Mark G. Kuzyk—Editors; Proceedings of SPIE; vol. 4461, pp. 172-179; 2001.
Pr. Gero Decher; “L'Interfacage Macromoleculaire: Nouveaux Materiaux par Nanoassemblage”; Conference du Mercredi; 12 Fevrier 2003.
Claire Pitois, Robert Vestberg, Marlene Rodlert, Eva Malmstrom, Anders Hult, Mikael Lindgren; “Flourinated dendritic polymers and dendrimers for waveguide applications”; Optical Materials; vol. 21, pp. 499-506; 2002.
Larry R. Dalton; “Polymeric and Dendritic Electro-Optic Materials: Materials Issue”; University of Washington; Seattle, Washington 98185-01700.
C. Dragone; “An NxN Optical Multiplexer Using a Planar Arrangement of Two Star Couplers”; IEEE Photonics Technology Letters; vol. 3, No. 9; pp. 812-815; Sep. 1991.
Y. Inoue, A. Himenko, K. Moriwaki, M. Kawachi; “Silica-based arrayed-waveguide grating circuit as optical splitter/router”; Electronics Letters; vol. 31; No. 9; pp. 726-727; Apr. 27, 1995.
H. Bissessur, B. Martin, R. Mestric, and F. Gaborit; “Small-size, polarization-independent phased-array demultiplexers on InP”; Electronics Letters; vol. 31; No. 24; pp. 2118-2120; Nov. 23, 1995.
T. Brenner, C.H. Joyner and M. Zirngibl; “Compact design waveguide grating routers”; Electronics Letters; vol. 32; No. 18; pp. 1660-1661; Aug. 29, 1996.
M. Zirngibl, C.H. Joyner and J.C. Centanni; “Size reduction of waveguide grating router through folding back the input/output fanouts”; Electronics Letters, vol. 33; No. 4; pp. 295-297; Feb. 13, 1997.
Hideaki Okayama, Masato Kawahara and Takeshi Kamijoh; “Reflective Waveguide Array Demultiplexer in LiNbO3”; Journal of Lighwave Technology; vol. 14; No. 6; pp. 985-990; Jun. 1996.
Applied Research & Photonics, Inc.
Kianni Kaveh
McNees Wallace & Nurick LLC
LandOfFree
Reflective arrayed waveguide grating does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Reflective arrayed waveguide grating, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reflective arrayed waveguide grating will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3575964