High Power Fiber Laser Diagnostics System
Abstract
A previous grant to the University of Central Florida is a major investment in the development of high power fiber lasers by AFOSR, supporting activities in directed energy and defense applications of lasers. This project had four principal objectives over its lifetime- (i) determination of the cause and mitigation of the transverse mode instability that currently is impedes the progress in high power fiber lasers, (ii) demonstrating kilowatt powers in Yb-fiber lasers with single mode beam quality and high reliability, (iii) advancing the development of high power mid-IR 2 m wavelength Tm-fiber lasers, and (iv) exploring the limits to high powers in Raman fiber lasers. It now has a firm understanding of the cause of the transverse mode instability, though it has not yet experimentally observed it. It has achieved kilowatt powers with Yb-fiber lasers at 1m, has developed a high power tunable Tm fiber laser, and has formulated a more efficient pumping scheme than is used at present. Lastly using it has demonstrated 100 W powers with a Raman fiber laser pumped by a solid-state Yb-YAG laser.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 29, 2024
- Source ID
- FA95502310154
Entities
People
- Martin Richardson
Organizations
- Air Force Office of Scientific Research
- United States Air Force
- University of Central Florida Board of Trustees