Methods and systems for laser mode stabilization
AssigneeInPhase Technologies, Inc.
InventorsVladimir Krneta, Larry Fabiny, Ian R. Redmond, Brian Riley, Aaron Wegner, Susan Hunter
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Abstract
Systems and methods are provided or use with a light source which generates a light beam. These systems may include a detector which detects light beam information and which determines whether multiple modes are present in the light beam so that the light source may be adjusted. These systems may further include a beam splitting device, such as an optical wedge, to provide two sample beams that intersect to provide a fringe pattern. The detector may then detect this fringe pattern and compute a visibility value that may be used to determine whether multiple modes are present.
Claims25
A system for use with a light source which generates a light beam, comprising:
- a beam splitting device which provides a first reflected portion and a second reflected portion from the light beam, wherein the first and second reflected portions have an angular separation such that the first and second portion intersect;
- a detector which detects a fringe pattern resulting from the intersection of the first and second reflected portions and which provides fringe pattern information;
- a processor which receives the detected fringe pattern information, and which adjusts the light source using the detected fringe pattern information when multiple modes are detected.
A method for use with a light source which generates a light beam, comprising the following steps of:
- (a) forming a first portion and a second portion from the light beam, wherein the first and second reflected portions have an angular separation such that the first and second portions intersect;
- (b) detecting a fringe pattern resulting from the intersection of the first and second portions to thereby provide fringe pattern information;
- and
- (c) adjusting the light source using the detected fringe pattern information when multiple modes are detected.
A system for use with a light source which generates a light beam, the system comprising:
- means for forming a first reflected portion and a second reflected portion from the light beam, wherein the first and second reflected portions have an angular separation such that the first and second portion intersect;
- means for detecting a fringe pattern resulting from the intersection of the first and second portions to thereby provide fringe pattern information;
- and
- means for adjusting the light source using the detected fringe pattern information when multiple modes are detected.
Dependencies are inferred from the claim text.