PUMA publications for /tag/ReflectivePulseCompressorGratinghttps://puma.ub.uni-stuttgart.de/tag/ReflectivePulseCompressorGratingPUMA RSS feed for /tag/ReflectivePulseCompressorGrating2026-04-23T16:40:07+02:00- High-efficiency grating-waveguide structure for pulse compression of 2 µm high-power lasershttps://puma.ub.uni-stuttgart.de/bibtex/2815a962ba37b6d6955f4bd6afdb05d3a/dbashirdbashir2026-04-22T16:37:31+02:002umCPALasers ReflectivePulseCompressorGrating UltrafastLaserOptics myown <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Danish Bashir" itemprop="url" href="/person/18fa60eef8ea34843e20c40ab91f83df7/author/0"><span itemprop="name">D. Bashir</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Thomas Graf" itemprop="url" href="/person/18fa60eef8ea34843e20c40ab91f83df7/author/1"><span itemprop="name">T. Graf</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Marwan Abdou Ahmed" itemprop="url" href="/person/18fa60eef8ea34843e20c40ab91f83df7/author/2"><span itemprop="name">M. Abdou Ahmed</span></a></span></span>. </span><span class="additional-entrytype-information">(<em><span>April 2026<meta content="April 2026" itemprop="datePublished"/></span></em>)</span>Wed Apr 22 16:37:31 CEST 2026April High-efficiency grating-waveguide structure for pulse compression of 2 µm high-power lasers20262umCPALasers ReflectivePulseCompressorGrating UltrafastLaserOptics myown We present a high-efficiency resonant diffraction grating-waveguide structure (RD-GWS) designed as a pulse compressor grating for high-power chirped-pulse amplification (CPA) laser systems operating at 2 µm wavelengths. The design achieves > 99 % theoretical diffraction efficiency across a 42 nm bandwidth centered at 2050nm and demonstrates good tolerance to fabrication variations. The estimated theoretical laser-induced damage threshold exceeds 0.75 J/cm² for 500 fs pulses. The fabricated sample achieved a measured diffraction efficiency of 97%, which, to the best of our knowledge, is the highest value reported to date for a 2 µm pulse compressor grating. These results demonstrate the potential of the RD-GWS concept for high-efficiency, damage-resistant pulse compression in next-generation high-power mid-infrared CPA systems.
- High-efficiency grating-waveguide structure for pulse compression of 2 µm high-power lasershttps://puma.ub.uni-stuttgart.de/bibtex/2815a962ba37b6d6955f4bd6afdb05d3a/ifswifsw2026-04-22T16:37:31+02:00myown 2µmCPA ReflectivePulseCompressorGrating 2umCPALasers and compoact ResonantDiffraction-GratingWaveguideStructure pulsecompressorgrating UltrafastLaserOptics best <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Danish Bashir" itemprop="url" href="/person/18fa60eef8ea34843e20c40ab91f83df7/author/0"><span itemprop="name">D. Bashir</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Thomas Graf" itemprop="url" href="/person/18fa60eef8ea34843e20c40ab91f83df7/author/1"><span itemprop="name">T. Graf</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Marwan Abdou Ahmed" itemprop="url" href="/person/18fa60eef8ea34843e20c40ab91f83df7/author/2"><span itemprop="name">M. Abdou Ahmed</span></a></span></span>. </span><span class="additional-entrytype-information">(<em><span>2026<meta content="2026" itemprop="datePublished"/></span></em>)</span>Wed Apr 22 16:37:31 CEST 2026High-efficiency grating-waveguide structure for pulse compression of 2 µm high-power lasers2026myown 2µmCPA ReflectivePulseCompressorGrating 2umCPALasers and compoact ResonantDiffraction-GratingWaveguideStructure pulsecompressorgrating UltrafastLaserOptics best