CW 50W/M2 = 10.9 diode laser source by spectral beam combining based on a transmission grating

  • Jun Zhang
  • , Hangyu Peng
  • , Xihong Fu
  • , Yun Liu
  • , Li Qin
  • , Guoqing Miao
  • , Lijun Wang

Research output: Contribution to journalArticlepeer-review

66 Scopus citations

Abstract

An external cavity structure based on the -1st transmission grating is introduced to spectral beam combining a 970 nm diode laser bar. A CW output power of 50.8 W, an electro-optical conversion efficiency of 45%, a spectral beam combining efficiency of 90.2% and a holistic M2 value of 10.9 are achieved. This shows a way for a diode laser source with several KW power and diffraction-limited beam quality at the same time.

Original languageEnglish
Pages (from-to)3627-3632
Number of pages6
JournalOptics Express
Volume21
Issue number3
DOIs
StatePublished - Feb 11 2013
Externally publishedYes

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