Brightness enhancement of continuous-wave beams using a diamond Raman laser

Zhenxu Bai, Robert J. Williams, Hadiya Jasbeer, Soumya Sarang, Aaron Mckay, Richard P. Mildren

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

Abstract

Brightness enhancement of high power quasicontinuous- wave beams is investigated in a diamond Raman laser as a function of the input beam quality. Up to 389 W of 1240 nm output is generated with a 78.2% linear slope efficiency and 52.5% overall conversation efficiency. For an M2 = 3.3 pump, the output beam quality factor of M2 = 1.08 was obtained, yielding a brightness enhancement factor of 3.7. Higher brightness enhancement factors are predicted when using lower beam quality pumps provided that a minimum input brightness is attained. The results point to new ways of creating brighter laser beams from high power lasers having degraded beam quality.

Original languageEnglish
Title of host publication2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1-2
Number of pages2
ISBN (Electronic)9781509062904
ISBN (Print)9781509062911
DOIs
Publication statusPublished - 22 Nov 2017
Event2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017 - Singapore, Singapore
Duration: 31 Jul 20174 Aug 2017

Conference

Conference2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017
CountrySingapore
CitySingapore
Period31/07/174/08/17

Keywords

  • Brightness enhancement
  • Continuous-wave
  • Diamond
  • External cavity
  • Raman laser

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  • Cite this

    Bai, Z., Williams, R. J., Jasbeer, H., Sarang, S., Mckay, A., & Mildren, R. P. (2017). Brightness enhancement of continuous-wave beams using a diamond Raman laser. In 2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017 (pp. 1-2). Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/CLEOPR.2017.8118918