G - Physics – 02 – F
Patent
G - Physics
02
F
G02F 1/01 (2006.01) G02F 1/07 (2006.01)
Patent
CA 2556808
An optical signal amplification device for outputting an output signal light which has the same wavelength as an input signal light and an intensity variation identical in phase with an intensity variation of the input signal light. The device includes: (a) an amplifying element having a cross gain modulation function of outputting an output light including (i) the output signal light and (ii) a neighboring light which has a neighboring wavelength different from the wavelength of the output signal light and an intensity variation inverted in phase with respect to the intensity variation of the output signal light; (b) inputting means for inputting the input signal light to the amplifying element; (c) a selecting element extracting the output signal light and at least a part of the neighboring light from the output light, such that the extracted output signal light and neighboring light are separated from each other; and (d) feedback means for feeding back the neighboring light extracted by the selecting element, to the amplifying element, so that the neighboring light is inputted to the amplifying element, for rendering the amplifying element to generate a negative feedback amplification effect.
De la lumière ambiante (L<sub
Borden Ladner Gervais Llp
Optotriode Co. Ltd.
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