Narrow surface corrugated grating

Coherent light generators – Particular beam control device – Modulation

Reexamination Certificate

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C372S050110, C372S064000, C372S099000

Reexamination Certificate

active

07961765

ABSTRACT:
Narrow surface corrugated gratings for integrated optical components and their method of manufacture. An embodiment includes a grating having a width narrower than a width of the waveguide on which the grating is formed. In accordance with certain embodiments of the present invention, masked photolithography is employed to form narrowed gratings having a desired grating strength. In an embodiment, an optical cavity of a laser is formed with a reflector grating having a width narrower than a width of the waveguide. In another embodiment an integrated optical communication system includes one or more narrow surface corrugated gratings.

REFERENCES:
patent: 4852960 (1989-08-01), Alferness et al.
patent: 2002/0126942 (2002-09-01), Evans
patent: 2008/0002929 (2008-01-01), Bowers et al.
“A Broadband Reflector for Waveguides”, http://www.priorartdatabase.com/IPCOM/000151878/, retrieved Mar. 23, 2009, (Apr. 23, 2007), 1-3.
Fang, Alexander W., et al., “A Distributed Bragg Reflector Silicon Evanescent Laser”, IEEE Photonics Technology Letters, vol. 20, No. 20, (Oct. 15, 2008), 1667-1669.
Fang, Alexander W., et al., “A distributed feedback silicon evanescent laser”, Optics Express, vol. 16, No. 7, (Mar. 31, 2008), 4413-4419.
Hastings, J T., et al., “Optical waveguides with apodized sidewall gratings via spatial-phase-locked electron-beam lithography”, J. Vac. Sci Technology B, 20(6), (Nov. 2002), 2753-2757.
Murphy, Thomas E., “Fabrication and Characterization of Narrow-Band Bragg-Reflection Filters in Silicon-on-Insulator Ridge Waveguides”, Journal of Lightwave Technology, IEEE 2001, 1938-1942.
Wiesmann, D. , et al., “Apodized Surface-Corrugated Gratings with Varying Duty Cycles”, IEEE Photonics Technology Letters, vol. 12, No. 6, (Jun. 2000), 639-641.
Garidel, Sophie, et al., “Apodized filters on InP-material ridge waveguides using sampled Bragg gratings”,Optical Components and Materials II, Proceedings of SPIE, vol. 5723, (2005), 121-130.

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