Optical coupler apparatus and method

Optical waveguides – With optical coupler – Input/output coupler

Reexamination Certificate

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C385S032000, C385S039000, C385S011000, C385S027000, C385S030000, C385S050000

Reexamination Certificate

active

11089640

ABSTRACT:
A planar lightwave circuit coupler including first and second waveguides with curved coupling portions having radii of curvature selected such that the coupler has a splitting ratio that is substantially wavelength and polarization insensitive.

REFERENCES:
patent: 4737007 (1988-04-01), Alferness et al.
patent: 4983006 (1991-01-01), Nishimoto
patent: 5175778 (1992-12-01), Nourshargh et al.
patent: 5495544 (1996-02-01), Smith et al.
patent: 2002/0015561 (2002-02-01), Kawashima et al.
patent: 2223323 (1990-04-01), None
patent: 63071377 (1988-03-01), None
patent: 08-184720 (1996-07-01), None
R. Ulrich et al., “Self-Imaging In Homogeneous Planar Optical Waveguides”,Appl. Phys. Lett., vol. 27, No. 6, pp. 337-339, 1975, date unknown.
L. B. Soldano et al., “Planar Monomode Optical Coupters Based On Multimode Interference Effects”,Journal of Lightwave Technology, vol. 10, No. 12, pp. 1843-1850, Dec. 1992.
C. Dragone, “Efficient NxN Star Couplers Using Fourier Optics”,Journal of Lightwave Technology, vol. 7, No. 3, pp. 479-489, Mar. 1989.
L. Leick et al., “Achieving Small Process Tolerant Wavelength-Flattened 3 dB Directional Couplers In Silica-On-Silicon”,Integrated Photonics Research Conference, paper IthB6, pp. 63-65, 2001, date unknown.
H. Yajima, “Dielectric Thin-Film Optical Branching Waveguide”,Appl. Phys. Lett., vol. 22, No. 12, pp. 647-649, 1973, date unknown.
R. Adar et al., “Adiabatic 3-dB Couplers, Filters, and Multiplexers Made With Silica Waveguides on Silicon”,Journal of Lightwave Technology, vol. 10, No. 1, pp. 46-50, Jan. 1992.
K. Jinguji et al., “Mach-Zehnder Interferometer Type Optical Waveguide Coupler With Wavelength-Flattened Coupling Ratio”,Electronics Letters, vol. 26, No. 17, pp. 1326-1327, Aug. 16, 1990.
C. R. Doerr et al., “Cross-Connect-Type Wavlength Add-Drop Node With Integrated Band Muxes, Interleavers, And Monitor”,Optical Fiber Communication Conference Digest, posteadline paper PD33, 2003, date unknown.
M. Oguma et al, “Compactly Folded Waveguide-Type Interleave Filter With Stabilized Couplers”,Optical Fiber Communication Conference Digest, paper TuK3, pp. 70-72, 2002, date unknown.
N. M. O'Sullivant et al., “Wavelength-Flattened Response In Bent Fibre Couplers”,Electronics Letters, vol. 28, No. 16, pp. 1485-1486, Jul. 30, 1992.
H. A. Haus,Waves and Fields in Optoelectronics, Prentice-Hall, Englewood Cliffs, New Jersey, 1984, date unknown.
C. K. Madsen et al., “Integrated All-Pass Filters For Tunable Dispersion And Dispersion Slope Compensation”,IEEE Photonics Technology Letters, vol. 11, No. 12, pp. 1623-1625, Dec. 1999.
Chen Y et al., “Enhanced WDM Performance Using Curved Waveguide Couplers”,Optics Communications, North-Holland Publishing Co. Amsterdam, NL, vol. 228, No. 4-6, Dec. 15, 2003, pp. 319-330.
Database Inspec [Online] The Institution of Electrical Engineers, Stevenage, GB; Jul. 30, 1992, “Wavelength-flattened Response in Bent Fibre Couplers”, XP002391537.
Doerr C R et al, “Bending Of A Planar Lightwave Circuit 2*2 Coupler To Desensitize It To Wavelength, Polarization, and Fabrication Changes”,IEEE Photonics Technology Letters, IEEE USA, vol. 17, No. 6, Jun. 2005, pp. 1211-1213.

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