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Proceedings Paper

High-power picosecond fiber-based laser operating at 515 nm
Author(s): Jean-Bernard Lecourt; Sébastien Guillemet; Julien Dupuy; Alexandre Gognau; Yves Hernandez
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Paper Abstract

We have developed a fiber-based laser source operating at 515 nm. The experimental setup is composed of a 1030 nm picosecond fiber laser, a Volume Bragg Grating (VBG) based compressor, and a Second Harmonic Generation (SHG) module. The 1030 nm picosecond fiber laser is made with an ANDi mode-lock all-fiber oscillator using a tilted Fiber Bragg Grating (FBG) for spectral filtering. A bandpass filter centered at 1030 nm permits to reduce the bandwidth of the laser to 1.5 nm. A Chirped Fiber Bragg Grating (C-FBG) based stretcher increases the pulse duration to about 90 ps for avoiding nonlinear effects during amplification. A fiber pre-amplifier followed by a double-clad 15 µm core LMA fiber amplifier pumped with a 27 W multimode diode are subsequently used. The total available power at 1030 nm is 14 Watts. SHG is achieved with a type I non-critical phase-matching (NCPM), 15 mm long, Lithium Triborate (LBO) crystal. The 515 nm signal is near diffraction limit (M2 < 1.2). The emitted average output power is 5.8 W, the pulse duration is 2.1 ps and the repetition rate is 89 MHz (SHG efficiency is 45%)

Paper Details

Date Published: 17 May 2018
PDF: 7 pages
Proc. SPIE 10683, Fiber Lasers and Glass Photonics: Materials through Applications, 1068338 (17 May 2018); doi: 10.1117/12.2307471
Show Author Affiliations
Jean-Bernard Lecourt, Multitel A.S.B.L. (Belgium)
Sébastien Guillemet, Multitel A.S.B.L. (Belgium)
Julien Dupuy, Multitel A.S.B.L. (Belgium)
Alexandre Gognau, Multitel A.S.B.L. (Belgium)
Yves Hernandez, Multitel A.S.B.L. (Belgium)


Published in SPIE Proceedings Vol. 10683:
Fiber Lasers and Glass Photonics: Materials through Applications
Stefano Taccheo; Jacob I. Mackenzie; Maurizio Ferrari, Editor(s)

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