| Biography | |
|---|---|
 Prof. Oliver H. Heckl the University of Vienna, Austria |
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| Title: Flexible all-PM NALM Yb:fiber laser design for low-noise frequency comb applications and single-cavity dual-comb generation | |
| Abstract: I present a versatile all-PM Yb:fiber-laser and demonstrate the impact of dispersion engineering on amplitude/phase noise and the carrier- envelope-offset frequency, showing single-digit-kHz values in free-running operation. Subsequently, I’ll introduce our work on dual-comb generation from a single fiber laser via spectral subdivision producing a non-aliasing bandwidth of ~2.5 THz. I’ll conclude this talk with our latest experiment demonstrating a simple approach for extending the ambiguity-free range of dual-comb ranging using an intrinsically modulated single-cavity dual-color fiber laser. | |
| Biography: Oliver Heckl currently works as an assistant professor at the Faculty of Physics at the University of Vienna. He received his diploma in physics in 2007 from the University of Augsburg, Germany, where his research focused on oxygen segregation on metal-oxide interfaces. Oliver Heckl had his first contact with photonics when he joined the Australian National University (ANU) in Canberra for a one-year student research project with Prof. Bachor during his undergraduate studies. After graduation, he decided to join the group of Prof. Keller at ETH Zürich in Switzerland to pursue a PhD in laser science and graduated in 2011 with a thesis on peak power scaling with modelocked thin-disk lasers. Oliver Heckl took his experience with ultrafast thin-disk lasers and joined TRUMPF Laser- und Systemtechnik in Ditzingen, Germany as a product manager for microprocessing lasers. TRUMPF is one of the leading companies in the field of lasers, machine tools, and market leader for industry-grade ultrafast lasers. In 2014 Oliver Heckl received a Feodor Lynen research scholarship. He joined the group of Prof. Jun Ye at JILA, CU Boulder, Colorado, where he broadened his research interests to include optical frequency combs, nonlinear optics and molecular spectroscopy with frequency combs. Since 2017, Oliver Heckl is leading the Christian Doppler Laboratory for Mid-IR Spectroscopy and Semiconductor Optics at the University of Vienna. In his current work, Oliver Heckl strives to extend frequency comb technology further into the mid-IR spectral region. He pursues applications with frequency combs in trace-gas detection, precision spectroscopy, and molecular fingerprinting. Progress in the mid-IR spectral region has been hindered mainly by the lack of high quality and low loss optics. Oliver Heckl plans to address this issue together with his industrial partner Thorlabs. Together, both partners explore the advantages and possibilities of newly available supermirror technology based on crystalline semiconductor layers. | |
