Author/Authors :
Ristau، Detlev نويسنده , , Tunnermann، Andreas نويسنده , , Clausnitzer، Tina نويسنده , , Limpert، Jens نويسنده , , Zollner، Karsten نويسنده , , Zellmer، Holger نويسنده , , Fuchs، Hans-Joerg نويسنده , , Kley، Ernst-Bernhard نويسنده , , Jup، Marco نويسنده ,
Abstract :
We report on highly efficient transmission gratings in fused silica with a grating period of 800 nm generated by electron-beam lithography. At a wavelength of 1060 nm, 95% diffraction efficiency is achieved under Littrow conditions. The damage threshold, extremely enhanced compared with conventional gold-coated diffraction gratings, makes these gratings the key elements in high average power ( >100 W) femtosecond fiber chirped-pulse amplification systems.
Keywords :
Ultrafast optics , Pulse compression , Ultrafast Lasers , Fiber optics amplifiers and oscillators , Fiber optics and optical communications , Diffraction and gratings , Diffraction gratings
