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US 6,587,204 B2Granted
Application of a step-phase interferometer in optical communication
AssigneeOptoplex Corporation
InventorYung-Chieh Hsieh
Life of this patent
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Abstract
This invention is an optical communication interleave device using a variety of optical interferometer configurations where one of the beams carries a linear phase and the other beam carries a non-linear phase such that the frequency dependence of the phase difference between these two beams has a step-ike function. The present invention uses a variety of non-linear phase generators to generate this step like phase difference.
Claims46
An optical step-phase interferometer, comprising:
- a beamsplitter to separate an incident beam of light into a first beam of light and a second beam of light;
- a reflector operatively positioned to reflect said first beam of light to produce a first reflected beam;
- and
- a non-linear phase generator (NLPG) operatively positioned to reflect said second beam of light to produce a second reflected beam, wherein said first reflected beam and said second reflected beam interfere with one another, wherein the frequency dependence of the phase difference between said first reflected beam and said second reflected beam has a step-like function.
1 more element
An optical step-phase interferometer, comprising:
- a first input fiber for providing a first set of wavelengths;
- a second input fiber optic for providing a second set of wavelengths;
- a reflector operatively positioned to reflect said first set of wavelengths to produce a first reflected beam;
- a non-linear phase generator (NLPG) operatively positioned to reflect said second set of wavelengths to produce a second reflected beam;
- and
- a beamsplitter to combine said first reflected beam and said second reflected beam into a third fiber optic.
3 more elements
A method of interleaving frequencies of light, comprising:
- separating an incident beam of light into a first beam of light and a second beam of light;
- reflecting said first beam of light to produce a first reflected beam;
- and
- reflecting said second beam of light with a non-linear phase generator (NLPG) to produce a second reflected beam, wherein said first reflected beam and said second reflected beam interfere with one another, wherein the frequency dependence of the phase difference between said first reflected beam and said second reflected beam has a step-like function.
1 more element
Dependencies are inferred from the claim text.