Phase grating and mode-selecting mirror for a laser

Details Phase grating and mode-selecting mirror for a laser Phase grating and mode-selecting mirror for a laser

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

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