Circularly Serrated Aperture for Beam Apodization

Modern optical applications in various industry sectors demand for laser beams with uniform energy distribution (flat-top beams). It is known that beams with steep edge profiles are more susceptible to developing diffraction ripples. These ripples may intensify in certain optical systems like amplifiers through self-focusing effects. In this use case, we seek to tackle this challenge by introducing a serrated beam apodizer. Beam apodization plays a key role in the design of high-energy lasers and beam delivery systems. Using amplitude-only apertures in high-energy optical systems leads to higher durability compared to apertures fabricated with deposition techniques.