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Coherent Polarization Beam Combination by Microcontroller-Based Phase-Locking Method

  • University of Shanghai for Science and Technology
  • Sorbonne Université
  • East China Normal University
  • School of Optical Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

We demonstrate a coherent polarization beam combination of two-channel picosecond pulses based on a microcontroller-based phase-locking method. This simple and low-cost technique enables easy programming and automatic relocking of the relative phases between two fiber amplifiers. The total average power of the combined laser is 30.4 W, corresponding to a combining efficiency of 91%. The microcontroller-based phase-locking method provides a competitive solution for robust and programmable control of phases in the active coherent polarization beam combining system.

Original languageEnglish
Article number7494914
Pages (from-to)2129-2132
Number of pages4
JournalIEEE Photonics Technology Letters
Volume28
Issue number20
DOIs
StatePublished - 15 Oct 2016
Externally publishedYes

Keywords

  • Coherent beam combining
  • Microcontroller
  • fiber amplifiers
  • phase-locking
  • polarization combining

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