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Optica Publishing Group
  • Current Optics and Photonics
  • Vol. 2,
  • Issue 5,
  • pp. 431-435
  • (2018)

High Power Coherent Beam Combining Setup Using Modified Cascaded Multi-dithering Technique

Open Access Open Access

Abstract

A modified setup of a CMD technique for high power coherent beam combining was presented to address an issue of low damage threshold of electro-optic modulators. The feasibility of the modified setup was demonstrated by combining eight fiber beams, and it was successfully performed with λ/44 of residual phase error and 100 Hz of control bandwidth. It is expected that the modified CMD setup facilitates ultra-high power coherent beam combination without a limitation caused by the low damage threshold of electro-optic modulators.

© 2018 Optical Society of Korea

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