Paper
18 November 2008 Pulsed 1.55μm all-fiber laser combining high energy, ultranarrow linewidth and optimal spatial beam quality
Author Affiliations +
Proceedings Volume 7138, Photonics, Devices, and Systems IV; 713807 (2008) https://doi.org/10.1117/12.817971
Event: Photonics, Devices, and Systems IV, 2008, Prague, Czech Republic
Abstract
In this letter, we report on the study of a new all-fiber laser source suitable for coherent Doppler LIDAR use in the eyesafe domain. The laser consists on a MOPA configuration where the Master Oscillator is a modulated ultranarrow (< 8 kHz) fiber laser. The optical amplifiers are also all-fibered and make use of a new Large Mode Area (LMA) index pedestal fiber that is very effective in limiting the non-linear effects without quality degradation of the laser beam. The amplified pulses have a maximum energy of 0.15 mJ for a duration of 340 ns at a repetition rate of 15 kHz. The average output power of the laser is 2.5 W, free of Stimulated Brillouin Scattering and with a measured M2 = 1.3.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Flavien Liégeois, Yves Hernandez, Damien Kinet, Domenico Giannone, Thierry Robin, and Benoît Cadier "Pulsed 1.55μm all-fiber laser combining high energy, ultranarrow linewidth and optimal spatial beam quality", Proc. SPIE 7138, Photonics, Devices, and Systems IV, 713807 (18 November 2008); https://doi.org/10.1117/12.817971
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KEYWORDS
Fiber lasers

Pulsed laser operation

LIDAR

Doppler effect

Optical filters

Modulation

Erbium

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