Chirped-pulse erbium-doped all-fiber ultrashort pulse laser for a fiber optic Raman distributed temperature sensor

Yan Zh. Ososkov; Anton O. Chernutsky; Dmitriy A. Dvoretskiy; Stanislav G. Sazonkin; Ilya O. Orekhov; Lev K. Denisov; Alexey B. Pnev; Valeriy E. Karasik

doi:10.1117/12.2548291

11 December 2019 Chirped-pulse erbium-doped all-fiber ultrashort pulse laser for a fiber optic Raman distributed temperature sensor

Yan Zh. Ososkov, Anton O. Chernutsky, Dmitriy A. Dvoretskiy, Stanislav G. Sazonkin, Ilya O. Orekhov, Lev K. Denisov, Alexey B. Pnev, Valeriy E. Karasik

Author Affiliations +

Proceedings Volume 11322, XIV International Conference on Pulsed Lasers and Laser Applications; 113220Z (2019) https://doi.org/10.1117/12.2548291
Event: XIV International Conference on Pulsed Lasers and Laser Applications (AMPL-2019), 2019, Tomsk, Russian Federation

Abstract

In this paper, we have developed a chirped-pulse Er-doped all-fiber ultrashort pulse (USP) laser suitable for highresolution Raman distributed temperature sensor (RDTS) system application. Chirped-pulse regime which is determined by the positive net-cavity dispersion of +0.12 ps² allows us to increase the energy of the pulses for effective signal-to-noise ratio in receiving system. It also helps to avoid the influence most of nonlinear effects due to relatively long pulses duration of ~24.6 ps. The average power of the pulses is estimated to be ~1 mW from master oscillator, and currently increased up to ~15 mW by power amplifier. A relatively low repetition rate of ~ 7.925 MHz with signal-to-noise ratio ~ 69 dB was achieved using the resonator length of ~25.6 m. To characterize short-term stability of the obtained regime we have also measured the relative intensity noise of the laser, which is < -107 dBc/Hz in the range of 3 Hz - 1 000 kHz.

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Yan Zh. Ososkov, Anton O. Chernutsky, Dmitriy A. Dvoretskiy, Stanislav G. Sazonkin, Ilya O. Orekhov, Lev K. Denisov, Alexey B. Pnev, and Valeriy E. Karasik "Chirped-pulse erbium-doped all-fiber ultrashort pulse laser for a fiber optic Raman distributed temperature sensor", Proc. SPIE 11322, XIV International Conference on Pulsed Lasers and Laser Applications, 113220Z (11 December 2019); https://doi.org/10.1117/12.2548291

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