RU2012158149A

RU2012158149A - LASER COMPRESSOR OPTICAL SYSTEM

Info

Publication number: RU2012158149A
Application number: RU2012158149/28A
Authority: RU
Inventors: Виталий Васильевич Романов
Priority date: 2012-12-28
Filing date: 2012-12-28
Publication date: 2014-07-10
Also published as: RU2547342C2

Abstract

1. Оптическая система лазерного компрессора, основанная на паре параллельных дифракционных решетках с одинаковым периодом, отличающаяся тем, что вышеназванная пара дифракционных решеток дополнена, по крайней мере, одной парой параллельных дифракционных решеток с одинаковым периодом, причем вдоль оптической оси по направлению распространения лазерного излучения, пары параллельных дифракционных решеток расположены таким образом, что лазерное излучение сначала последовательно проходит первые решетки всех пар дифракционных решеток, начиная с первой пары решеток, а затем последовательно вторые решетки всех пар дифракционных решеток, начиная с последней пары решеток, причем различные пары дифракционных решеток ориентированы друг относительно друга под разными углами, выбранными в зависимости от характеристик лазерного излучения, максимального габаритного размера применяемых дифракционных решеток, их периода и оптических характеристик и от требуемой дисперсии групповой скорости лазерного излучения на выходе оптической системы.2. Оптическая система лазерного компрессора по п.1, отличающаяся тем, что период дифракционных решеток в разных парах одинаковый или различный.1. The optical system of the laser compressor, based on a pair of parallel diffraction gratings with the same period, characterized in that the above pair of diffraction gratings is supplemented with at least one pair of parallel diffraction gratings with the same period, and along the optical axis in the direction of laser radiation propagation, pairs of parallel diffraction gratings are arranged so that the laser radiation first passes sequentially through the first gratings of all pairs of diffraction gratings, on starting from the first pair of gratings, and then sequentially the second gratings of all pairs of diffraction gratings, starting from the last pair of gratings, moreover, different pairs of diffraction gratings are oriented relative to each other at different angles, selected depending on the characteristics of the laser radiation, the maximum overall size of the diffraction gratings used, their period and optical characteristics and on the required dispersion of the group velocity of the laser radiation at the output of the optical system. 2. The optical system of the laser compressor according to claim 1, characterized in that the period of the diffraction gratings in different pairs is the same or different.

Claims

1. The optical system of the laser compressor, based on a pair of parallel diffraction gratings with the same period, characterized in that the above pair of diffraction gratings is supplemented with at least one pair of parallel diffraction gratings with the same period, and along the optical axis in the direction of laser radiation propagation, pairs of parallel diffraction gratings are arranged so that the laser radiation first passes sequentially through the first gratings of all pairs of diffraction gratings, on starting from the first pair of gratings, and then sequentially the second gratings of all pairs of diffraction gratings, starting from the last pair of gratings, moreover, different pairs of diffraction gratings are oriented relative to each other at different angles, selected depending on the characteristics of the laser radiation, the maximum overall size of the diffraction gratings used, their period and optical characteristics and the required dispersion of the group velocity of the laser radiation at the output of the optical system.

2. The optical system of the laser compressor according to claim 1, characterized in that the period of the diffraction gratings in different pairs is the same or different.