skip to main content


Title: Direct diode pumped Ti:sapphire ultrafast regenerative amplifier system

Here, we report on a direct diode-pumped Ti:sapphire ultrafast regenerative amplifier laser system producing multi-uJ energies with repetition rate from 50 to 250 kHz. By combining cryogenic cooling of Ti:sapphire with high brightness fiber-coupled 450nm laser diodes, we for the first time demonstrate a power-scalable CW-pumped architecture that can be directly applied to demanding ultrafast applications such as coherent high-harmonic EUV generation without any complex post-amplification pulse compression. Initial results promise a new era for Ti:sapphire amplifiers not only for ultrafast laser applications, but also for tunable CW sources. We discuss the unique challenges to implementation, as well as the solutions to these challenges.
 [1] ;  [2] ;  [2] ;  [2] ;  [3] ;  [4] ;  [4]
  1. Kapteyn-Murname Lab. Inc., Boulder, CO (United States); Colorado State Univ., Fort Collins, CO (United States)
  2. Colorado School of Mines, Golden, CO (United States)
  3. Kapteyn-Murname Lab. Inc., Boulder, CO (United States)
  4. Kapteyn-Murname Lab. Inc., Boulder, CO (United States); Univ. of Colorado, Boulder, CO (United States)
Publication Date:
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Optics Express
Additional Journal Information:
Journal Volume: 25; Journal Issue: 4; Journal ID: ISSN 1094-4087
Optical Society of America (OSA)
Research Org:
Kapteyn-Murname Lab. Inc., Boulder, CO (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
07 ISOTOPE AND RADIATION SOURCES; ultrafast; Ti:sapphire; diode laser
OSTI Identifier: