Coherent light generators – Particular beam control device – Mode discrimination
Patent
1996-07-16
1998-04-28
Scott, Jr., Leon
Coherent light generators
Particular beam control device
Mode discrimination
372 99, 372102, 372108, 372 98, H01S 3098
Patent
active
057455112
ABSTRACT:
Method for making a custom phase-conjugating diffractive mirror for a laser resonator comprising the steps of: (a) choosing a specified beam mode profile a.sub.1 (x,y) that will suit need of said designer, (b) calculating the mode profile b(x',y') which is a value of the specified beam a.sub.1 (x,y) that is propagated to the reflection surface of the diffractive mirror and (c) calculating mirror reflectance t(x',y') which reflects phase conjugate of b(x',y'). A method for fabricating such a mirror is shown. Another aspect of the invention is the addition of a phase adjusting element into a laser resonator, and compensating for the addition of a phase adjusting element in the design of other phase-adjusting elements such as the mirrors.
REFERENCES:
patent: 5627847 (1997-05-01), Leger
Jr. Leon Scott
Regents of the University of Minnesota
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