MULTI MODE FIBRE PERTURBER
First Claim
Patent Images
1. An optical arrangement comprising:
- a multi-mode fiber for carrying single mode laser light;
a randomizer for randomizing spatial modes supported by the multi-mode fiber; and
averaging means for averaging out randomized spatial modes to recover a single spatial mode.
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Abstract
An optical arrangement comprising a multi-mode fiber (16) for carrying single mode laser light (12); a randomizer (18) for randomizing spatial modes supported by the fiber and means for averaging, out the randomized spatial modes to recover the single spatial mode.
28 Citations
38 Claims
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1. An optical arrangement comprising:
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a multi-mode fiber for carrying single mode laser light; a randomizer for randomizing spatial modes supported by the multi-mode fiber; and averaging means for averaging out randomized spatial modes to recover a single spatial mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A gas sensor comprising:
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a laser; a multi-mode fiber for transmitting light from the laser to and/or from a target area; a randomizer for randomizing spatial modes supported by the multi-mode fiber; a detector for detecting light that has passed through the target area; and averaging means for averaging out randomized spatial modes to recover a single spatial mode. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. An optical arrangement comprising:
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a multi-mode fiber for carrying single mode laser light; and a randomizer for randomizing spatial modes supported by the multi-mode fiber.
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36. A method comprising:
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transmitting radiation from a single mode laser; randomizing the radiation during transmission; receiving randomized radiation; and using the randomized radiation to recover single mode radiation. - View Dependent Claims (37, 38)
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Specification