Author Of 3 Presentations
HPLSET - High Power Laser Science and Engineering Technology
WA3.2 - Multi-kW, Uncooled Densely Packed Fiber Array for Laser Beam Combining
Presentation Type
Invited Submission
Authors
- L. Beresnev (US) CCDC Army Research Laboratory
- A. Flores (US) Air Force Research Laboratory
- R. Holten (US) Air Force Research Laboratory
- A. Valenzuela (US) CCDC-Army Research Lab
- A. Taliaferro (US) Air Force Research Laboratory
- A. Schweinsberg (US) CCDC Army Research Laboratory
- K. Gurton (US) CCDC Army Research Laboratory
- D. Ligon (US) CCDC Army Research Laboratory
- C. Williamson (US) CCDC Army Research Laboratory
- S. Bilyk (US) CCDC Army Research Laboratory
Date
08/21/2019
Time
01:00 PM - 03:00 PM
Room
Sandpiper A/B
Duration
30 Minutes
Lecture Time
01:30 PM - 02:00 PM
Abstract
Abstract
The array of seven fiber collimators with transmission about 99.9% was tested with 1.99kW per one channel. Truncated radiation, ~6%, was disposed through output collimating lenses by re-directing Gaussian beam tails with interior holey micro-lenses. No cooling was necessary. Beam quality in far-field M2 ~1.2. HPLSET - High Power Laser Science and Engineering Technology
WA3.4 - SINGLE SHOT AXIALLY RESOLVED FEMTOSECOND LASER FILAMENT PROFILES
Presentation Type
Contributed Submission
Authors
Date
08/21/2019
Time
01:00 PM - 03:00 PM
Room
Sandpiper A/B
Duration
15 Minutes
Lecture Time
02:30 PM - 02:45 PM
Abstract
Abstract
An array of synchronized microphones measures energy deposition along the length of laser filament in a single shot. A spread of collapse location positions due to air turbulence and laser energy fluctuations causes a pronounced difference between single shot measurements and conventional multi-shot averaging.
HPLSET - High Power Laser Science and Engineering Technology
WA4.2 - GENERATION OF BROAD SPECTRAL COMPONENTS FROM MID-INFRARED ULTRASHORT PULSE LASER PROPAGATION THROUGH SINGLE- AND POLY-CRYSTALLINE OPTICAL MATERIALS
Presentation Type
Contributed Submission
Authors
- K. Werner (US) The Ohio State University
- M. Tripepi (US) The Ohio State University
- A. Schweinsberg (US) CCDC Army Research Laboratory
- L. Vanderhoef (US) CCDC-Army Research Lab
- C. Wolfe (US) CCDC-Army Research Lab
- T. Ensley (US) CCDC - U.S. Army Research Laboratory, Sensors and Electron Devices Directorate
- B. Wilmer (US) SURVICE Engineering
- E. Chowdhury (US)
- A. Valenzuela (US) CCDC-Army Research Lab
Date
08/21/2019
Time
03:00 PM - 04:45 PM
Room
Sandpiper A/B
Duration
15 Minutes
Lecture Time
03:15 PM - 03:30 PM
Abstract
Abstract
We investigated the nonlinear optical properties of single- and poly-crystalline optical materials using ultrashort mid-infrared laser pulses between 3 and 4 µm. We compared visible to mid-infrared spectra between the materials. Measured energy conversion into all-order harmonics in polycrystalline materials exceeded 30%.