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Multi-Kilowatt Peak Power Nanosecond Er-Doped Fiber Laser

Dvoyrin, Vladislav; Klimentov, Dmitry; Klepsvik, JO; Mazaeva, IV; Sorokina, Irina T
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URI
http://hdl.handle.net/11250/2463880
Date
2016
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Original version
IEEE Photonics Technology Letters. 2016, 28 (23), 2772-2775.   10.1109/LPT.2016.2620342
Abstract
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.
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Journal
IEEE Photonics Technology Letters

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