Highly efficient all-fiber continuous-wave Raman graded-index fiber laser pumped by a fiber laser

Yaakov Glick, Yariv Shamir, Alexey A. Wolf, Alexandr V. Dostovalov, Sergey A. Babin, Shaul Pearl

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

We report for the first time, to the best of our knowledge, an all-fiber Raman graded-index (GRIN) fiber laser pumped by a fiber laser. This configuration points to potential future power and brightness increases. Continuous-wave power of 135 W with an M 2 value of 2.5 was obtained at a wavelength of 1081 nm with an optical-to-optical efficiency of 68%. A commercial GRIN core fiber acts as the Raman fiber in a power oscillator configuration that includes fiber Bragg gratings (FBGs) written onto the GRIN fiber. The efficiency and brightness demonstrated here are, to the best of our knowledge, the highest reported in any Raman GRIN fiber laser. A brightness enhancement of the pump beam by a factor of 5.6 is attained due to the transverse profiles of Raman gain and FBG reflection in the GRIN fiber.

Original languageEnglish
Pages (from-to)1027-1030
Number of pages4
JournalOptics Letters
Volume43
Issue number5
DOIs
Publication statusPublished - 1 Mar 2018

Keywords

  • HIGH-POWER
  • BEAM

Fingerprint Dive into the research topics of 'Highly efficient all-fiber continuous-wave Raman graded-index fiber laser pumped by a fiber laser'. Together they form a unique fingerprint.

Cite this