Abstract
We report a grating solution for achieving broadband and polarization-independent properties that brings a laser combining system to much higher power levels. The grating, with a high-refractive-index-contrast bilayer ridge, was designed and successfully fabricated based on high-power laser coatings, lithography, and ion-beam etching technology. The measured st order non-polarized reflective diffraction efficiency of the grating exceeds 98% over the wavelength range of 1.023–1.08 μm, and the highest value is 99.15%.
© 2017 Optical Society of America
Full Article | PDF ArticleMore Like This
Kairu Wei and Lifeng Li
Opt. Lett. 46(18) 4626-4629 (2021)
Martin Rumpel, Michael Moeller, Christian Moormann, Thomas Graf, and Marwan Abdou Ahmed
Opt. Lett. 39(2) 323-326 (2014)
Hongchao Cao, Jun Wu, Junjie Yu, and Jianyong Ma
Appl. Opt. 57(4) 900-904 (2018)