Multi-kilowatt peak power nanosecond Er-doped fiber laser

V.V. Dvoyrin, D. Klimentov, J.O. Klepsvik, I.V. Mazaeva, I.T. Sorokina

Research output: Contribution to journalArticlepeer-review


We report a two-stage diode-pumped Er-doped fiber amplifier operating at the wavelength of 1550 nm at the repetition rate of 10-100 kHz with an average output power of up to 10 W. The first stage comprising Er-doped fiber was core-pumped at the wavelength of 1480 nm, whereas the second stage comprising double-clad Er/Yb-doped fiber was clad-pumped at the wavelength of 975 nm. The estimated peak power for the 0.4-nm full-width at half-maximum laser emission at the wavelength of 1550 nm exceeded 4-kW level. The initial 100-ns seed diode laser pulse was compressed to 3.5 ns as a result of the 34-dB total amplification. The observed 30-fold efficient pulse compression reveals a promising new nonlinear optical technique for the generation of high power short pulses for applications in eye-safe ranging and micromachining.

Original languageEnglish
Pages (from-to)2772-2775
Number of pages4
JournalIEEE Photonics Technology Letters
Issue number23
Publication statusPublished - 1 Dec 2016

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  • fiber lasers
  • infrared lasers
  • optical fibers


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