Method of making a lens balanced laser rod and rod produced thereby
Abstract
Abstract A LASER ROD, HAVING A LENGTH TO LATERAL DIMENSION RATIO OF A LEAST ABOUT 1 TO 1 OR GREATER, IS FORMED OF AN UNANNEALED GLASS HAVING AN ACTIVE LASER INGREDIENT, AND THE ROD, MADE TO DESIRED DIMENSIONS, DURING ITS MANUFACTURE IS COOLED IN SUCH A MANNER THAT THERE IS A GRADIENT OF STRAIN FROM THE SURFACE TO THE CENTER AND BETWEEN THE END, PRODUCING A ZERO LENS EFFECT AT HIGH REPETITION RATES WHERE THE RESONANT OPTICALL ENERGY PRODUCES HIGH TEMPERATURES IN THE ROD. THE ROD IS PRODUCED WITH A NEGATIVE LENS EFFECT, AT LEAST AT SECTIONS INTERMEDIATE THE OPPOSED ENDS, WHICH IS SUBSTANTIALLY EQUAL TO THE POSITIVE LENS EFFECT PRODUCED BY EXPANSION OF THE ROD DUE TO THE HEATING DERIVED FROM OPTICAL PUMPING, TAKING INTO CONSIDERATION THE DIFFERENTIAL COLING EFFECT FROM THE EXTERIOR SURFACE INWARDLY OF THE ROD.
Inventors
- 👤 Joseph W Kantorski
Bibliographic Details
Claims Analysis
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