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US 6,487,232 B1Granted
System and method for suppressing multimoding behavior of lasers
AssigneeAgilent Technologies, Inc.
InventorGlenn H. Rankin
Life of this patent
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Abstract
The present invention reduces multimoding of light generated by lasers. An asymmetric dispersion enhancer is included in a laser cavity to increase the asymmetric dispersion of the light amplified in the cavity. As a result, the side modes of the light passing through the cavity are asymmetrically disposed about the fundamental mode and, therefore, are amplified less in the cavity. Consequently, multimoding of the light is better suppressed.
Claims12
A laser having a resonant cavity, said laser comprising:
- a gain medium located within said resonant cavity;
- and
- an asymmetric dispersion enhancer located within said resonant cavity configured to asymmetrically distribute coupled side modes of an amplifying light about a fundamental mode.
A laser, comprising:
- means for defining a laser resonant cavity;
- means for amplifying light within said laser resonant cavity;
- and
- means for increasing an asymmetric dispersion by asymmetrically distributing coupled side modes about a fundamental mode of said light as said light passes through said increasing means.
1 more element
A method for suppressing multimoding within lasers, the method comprising steps of:
- providing a laser cavity;
- providing a waveguide within said laser cavity;
- amplifying light within said laser cavity;
- filtering said light within said laser cavity;
- and
- increasing an asymmetric dispersion by asymmetrically distributing coupled side modes about a fundamental mode of said light as said light passes through said waveguide.
3 more elements
Dependencies are inferred from the claim text.