Optical waveguides – With optical coupler – Input/output coupler
Reexamination Certificate
2006-12-04
2009-02-17
Doan, Jennifer (Department: 2874)
Optical waveguides
With optical coupler
Input/output coupler
C385S015000, C385S016000, C385S129000
Reexamination Certificate
active
07492990
ABSTRACT:
An optical switching element includes a resonant reflection element and a driving unit. The resonant reflection element has a thickness portion functioning as a waveguide layer, with one surface in a thickness direction functioning as a total reflection surface and the other surface having formed thereon a fine periodic structure with fine asperities, the resonant reflection element resonant-reflecting light that is incident from the other surface and has a specific wavelength component. The driving unit varies a resonant wavelength of resonant reflection by varying at least one of a shape and a refractive index of the resonant reflection element.
REFERENCES:
patent: 6035089 (2000-03-01), Grann et al.
patent: 6212312 (2001-04-01), Grann et al.
patent: 6215928 (2001-04-01), Friesem et al.
patent: 2005/0248829 (2005-11-01), Sawin et al.
patent: 2002-148530 (2002-05-01), None
patent: 2002-287047 (2002-10-01), None
patent: 2005-157133 (2005-06-01), None
patent: 2005-0057412 (2005-06-01), None
patent: WO 97/44686 (1997-11-01), None
patent: WO 98/57200 (1998-12-01), None
Magnusson et al., “Transmission Bandpass Guided-Mode Resonance Filters”, Applied Optics, vol. 34, No. 35, pp. 8106-8109, Dec. 10, 1995.
D. Rosenblatt et al., “Resonant Grating Waveguide Structures,” IEEE Journal of Quantum Electronics, vol. 33, No. 11, Nov. 1997, pp. 2038-2059.
Magnusson, et al.; “Transmission Bandpass Guided-Mode Resonance Filters”; Applied Optics; vol. 34; No. 35; Dec. 10, 1995; pp. 8106-8109.
Hashiguchi Tsuyoshi
Hirai Hideaki
Dickstein , Shapiro, LLP.
Doan Jennifer
Ricoh & Company, Ltd.
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