Coherent combining pulse bursts in time domain

Patent · Tue Jun 04 00:00:00 EDT 2019

OSTI ID:1568436

Galvanauskas, Almantas

A beam combining and pulse stacking technique is provided that enhances laser pulse energy by coherent stacking pulse bursts (i.e. non-periodic pulsed signals) in time domain. This energy enhancement is achieved by using various configurations of Fabry-Perot, Gires-Tournois and other types of resonant cavities, so that a multiple-pulse burst incident at either a single input or multiple inputs of the system produces an output with a solitary pulse, which contains the summed energy of the incident multiple pulses from all beams. This disclosure provides a substantial improvement over conventional coherent-combining methods in that it achieves very high pulse energies using a relatively small number of combined laser systems, thus providing with orders of magnitude reduction in system size, complexity, and cost compared to current combining approaches.

• Research Organization: Univ. of Michigan, Ann Arbor, MI (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: SC0006377
• Assignee: The Regents of the University of Michigan (Ann Arbor, MI)
• Patent Number(s): 10,312,657
• Application Number: 15/724,723
• OSTI ID: 1568436
• Resource Relation: Patent File Date: 10/04/2017
• Country of Publication: United States
• Language: English