A large capacity time division multiplexing (TDM) laser beam combining technique enabled by nanosecond speed KTN deflector

Stuart Yin, Ju Hung Chao, Wenbin Zhu, Chang Jiang Chen, Adrian Campbell, Michael Henry, Mark Dubinskiy, Robert C. Hoffman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

In this paper, we present a novel large capacity (a 1000+ channel) time division multiplexing (TDM) laser beam combining technique by harnessing a state-of-the-art nanosecond speed potassium tantalate niobate (KTN) electro-optic (EO) beam deflector as the time division multiplexer. The major advantages of TDM approach are: (1) large multiplexing capability (over 1000 channels), (2) high spatial beam quality (the combined beam has the same spatial profile as the individual beam), (3) high spectral beam quality (the combined beam has the same spectral width as the individual beam, and (4) insensitive to the phase fluctuation of individual laser because of the nature of the incoherent beam combining. The quantitative analyses show that it is possible to achieve over one hundred kW average power, single aperture, single transverse mode solid state and/or fiber laser by pursuing this innovative beam combining method, which represents a major technical advance in the field of high energy lasers. Such kind of 100+ kW average power diffraction limited beam quality lasers can play an important role in a variety of applications such as laser directed energy weapons (DEW) and large-capacity high-speed laser manufacturing, including cutting, welding, and printing.

Original languageEnglish (US)
Title of host publicationPhotonic Fiber and Crystal Devices
Subtitle of host publicationAdvances in Materials and Innovations in Device Applications XI
EditorsShizhuo Yin, Ruyan Guo
PublisherSPIE
ISBN (Electronic)9781510612211
DOIs
StatePublished - 2017
EventPhotonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XI 2017 - San Diego, United States
Duration: Aug 6 2017Aug 7 2017

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10382
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherPhotonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XI 2017
CountryUnited States
CitySan Diego
Period8/6/178/7/17

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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