Optical waveguides – With optical coupler – Plural
Reexamination Certificate
2008-07-15
2008-07-15
Pak, Sung (Department: 2874)
Optical waveguides
With optical coupler
Plural
C385S037000
Reexamination Certificate
active
07400793
ABSTRACT:
An optical device used, for example, in an add/drop multiplexer, a dynamic gain equalizer or a optical power monitor. The optical device includes (a) a substrate; (b) a first slab waveguide formed on the substrate; (c) channel waveguides of differing lengths formed on the substrate, light output from the first slab waveguide being input to the channel waveguides; and (d) a second slab waveguide formed on the substrate, light output from the channel waveguides being input to the second slab waveguide. An end face of the second slab waveguide shares a face with an end face of the substrate. The optical device has low loss characteristics.
REFERENCES:
patent: 4786131 (1988-11-01), Mahapatra et al.
patent: 4923270 (1990-05-01), Carter
patent: 5414540 (1995-05-01), Patel et al.
patent: 5930439 (1999-07-01), Ojha et al.
patent: 5960133 (1999-09-01), Tomlinson
patent: 6122419 (2000-09-01), Kurokawa et al.
patent: 6263123 (2001-07-01), Bishop et al.
patent: 6263127 (2001-07-01), Dragone et al.
patent: 6574397 (2003-06-01), Katayama et al.
patent: 6701090 (2004-03-01), Hatayama et al.
patent: 2002/0118912 (2002-08-01), Katayama et al.
patent: 2002/0159701 (2002-10-01), Katayama et al.
patent: 2003/0007728 (2003-01-01), Koichi et al.
patent: 2004/0252938 (2004-12-01), Ducellier et al.
patent: 1373379 (2002-10-01), None
patent: 2794858 (2000-12-01), None
patent: 2000-214392 (2000-08-01), None
patent: 03/098962 (2003-11-01), None
Takahashi et al., “Arrayed-Waveguide Grating for Wavelength Division Multi/Demultiplexer with Nanometre Resolution”, Electronics Letters, vol. 26, No. 2, Jan. 18, 1990, pp. 87-88.
Soole et al., “High Performance Polarization-Independent WDM Filtering Using an InP Reflective Arrayed Waveguide Grating”, Lasers and Electro-Optics Society Annual Meeting, 1996, LEOS 96, IEEE Boston, MA, Nov. 18-19, 1996, pp. 228-229.
Smit, et al., “PHASAR-Based WDM-Devices: Principles, Design and Applications,” IEEE Journal of Selected Topics in Quantum Electronics, vol. 2, No. 2, pp. 236-250 Jun. 1996.
Ford, et al., “Wavelength Add-Drop Switching Using Tilting Micromirrors”, Journal of Lightwave Technology, vol. 17, No. 5, pp. 904-911, May 1999.
Ford, et al., “Dynamic Spectral Power Equalization Using Micro-Opto-Mechanics”, IEEE Photonics Technology Letters, vol. 10, No. 10, pp. 1440-1442, Oct. 1998.
Chinese Patent Office Action, mailed Feb. 18, 2005 and issued in corresponding Chinese Patent Application No. 200310101501.0.
European Patent Office Communication, mailed Sep. 11, 2007 and issued in corresponding European Patent Application No. 03018619.1-2216.
Naruse Terukazu
Shibata Kohei
Tabuchi Haruhiko
Terada Koji
Fujitsu Limited
Pak Sung
Staas & Halsey , LLP
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