Oct 22 – 27, 2023
Lahan Select Gyeongju, South Korea
Asia/Seoul timezone

Digital low level optical control for multidimensional coherent laser combining

Oct 24, 2023, 9:05 AM
30m
Oral or Poster Measurement and control Measurement and control

Speaker

Qiang Du (Lawrence Berkeley National Laboratory)

Description

Recently, we have demonstrated new methods to actively stabilize multi-way laser coherence states in the dimensions of time, space and spectrum, so that we can effectively combine many laser beams into one in each dimension. This paper summarizes many of our technical approaches and milestones, from optical physics modeling, to FPGA based feedback control platform, to machine learning pattern recognitions and experimental demonstration results. This technique paved the way for building high power lasers that have many applications, such as driving the laser plasma Wakefield accelerator, manufacturing, defense and many more.

Primary author

Qiang Du (Lawrence Berkeley National Laboratory)

Co-authors

Dan Wang (LBNL) Larry Doolittle (LBNL) Russell Wilcox (LBNL)

Presentation materials