Method and apparatus for improving the instability of a laser
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United States of America Patent
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Mar 3, 1998
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app pub date -
Feb 29, 1996
filing date -
Feb 29, 1996
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Abstract
A method of reducing undulation in the L vs. I curve of a laser which uses a fiber grating is presented. The spectral width of the fiber grating is made larger than the Fabry-Perot spacing of the laser cavity. As a result, as the laser shifts between harmonics due to laser functioning (e.g., laser drive current, laser aging, temperature change, or mechanical stress), the fiber grating is able to respond linearly because of a large spectral width.
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