Methods for signal transmission in optical fiber
First Claim
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1. A method for transmitting a signal in an optical system, the method comprising:
- generating an optical signal along an optical axis for transmission through an optical element;
positioning the optical element so that a surface discontinuity is positioned along the optical axis such that the optical signal defines a substantially symmetric intensity profile; and
launching the optical signal into an input face of an optical fiber such that a relative minimum of an incident field amplitude of the intensity profile is located proximate an optical axis associated with the optical fiber.
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Abstract
This disclosure concerns methods for transmitting a signal in an optical system. In one example, the method begins when an optical signal is generated. Then, the optical signal is manipulated such that the optical signal defines a substantially annular intensity profile, where power of the optical signal varies in the intensity profile. Finally, the optical signal is launched into an input face of an optical fiber such that a predetermined part of the intensity profile of the optical signal is located proximate an optical axis associated with the optical fiber.
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12 Claims
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1. A method for transmitting a signal in an optical system, the method comprising:
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generating an optical signal along an optical axis for transmission through an optical element; positioning the optical element so that a surface discontinuity is positioned along the optical axis such that the optical signal defines a substantially symmetric intensity profile; and launching the optical signal into an input face of an optical fiber such that a relative minimum of an incident field amplitude of the intensity profile is located proximate an optical axis associated with the optical fiber. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for transmitting a signal in an optical system, the method comprising:
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generating an optical signal; manipulating the optical signal such that the optical signal defines a substantially annular intensity profile that is substantially symmetric about a relative minimum of an incident field amplitude wherein the step of manipulating includes the steps of; implementing an axicon function with respect to the optical signal; and defocusing the optical signal such that the portion of the optical signal having a desired substantially annular intensity profile occurs at a predetermined defocused place; and launching the optical signal into a first end of an optical fiber such that the relative minimum of the incident field amplitude is located proximate a center of the first end of the optical fiber. - View Dependent Claims (9, 10, 11, 12)
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Specification