Optical waveguide amplifier using high quantum efficiency...

Optical: systems and elements – Optical amplifier – Particular active medium

Reexamination Certificate

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Reexamination Certificate

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08054540

ABSTRACT:
A method is provided for optical amplification using a silicon (Si) nanocrystal embedded silicon oxide (SiOx) waveguide. The method provides a Si nanocrystal embedded SiOx waveguide, where x is less than 2, having a quantum efficiency of greater than 10%. An optical input signal is supplied to the Si nanocrystal embedded SiOx waveguide, having a first power at a first wavelength in the range of 700 to 950 nm. The Si nanocrystal embedded SiOx waveguide is pumped with an optical source having a second power at a second wavelength in a range of 250 to 550 nm. As a result, an optical output signal having a third power is generated, greater than the first power, at the first wavelength. In one aspect, the third power increases in response to the length of the waveguide strip.

REFERENCES:
patent: 6710366 (2004-03-01), Lee et al.
patent: 7068420 (2006-06-01), Tallone et al.
patent: 7095058 (2006-08-01), Gardner
patent: 7336684 (2008-02-01), Sparacin et al.
patent: 2004/0053009 (2004-03-01), Ozin et al.
patent: 2005/0255619 (2005-11-01), Negro et al.
patent: 2006/0012853 (2006-01-01), Tallone et al.
patent: 2006/0039433 (2006-02-01), Simpson
patent: 2006/0211267 (2006-09-01), Joshi et al.
patent: 2007/0161134 (2007-07-01), Lin et al.
Lian, et al. “A buried silicon nanocrystals based high gain coefficient SiO2/ SiOx/ SiO2/ Strip-Loaded Waveguide Amplifier on Quartz Substrate”, Material Research Society Symposium Proceedings vol. 1076, K05-02 (presented Mar. 24-28, 2008).
Pavesi et al., “Optical gain in silicon nanocrystals”, Nature, vol. 408, Nov. 23, 2000, pp. 440-444.
Liu et al., Polarity-controlled visible/infrared electroluminescence in Si-nanocrystal/Si light-emitting devices, Applied Physics Letters, vol. 97, 071112.

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