Sub-nanosecond single-frequency 10-kHz diode-pumped MOPA laser

A single-axial-mode, passively Q-switched (PQS) diode-pumped Nd:YAG laser, generating a diffraction-limited beam train of ≈40–60 μJ, ∼500-ps pulses with adjustable repetition rate in the range 1–10 kHz, was efficiently amplified by a single side-pumped Nd:YVO 4 bounce amplifier. After double-pass am...

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Veröffentlicht in:	Applied physics. B, Lasers and optics Lasers and optics, 2010-03, Vol.98 (4), p.737-741
Hauptverfasser:	Agnesi, A., Dallocchio, P., Pirzio, F., Reali, G.
Format:	Artikel
Sprache:	eng
Schlagworte:	Adjustable Amplification Beams (radiation) Biological and medical applications Diffraction Diode-pumped lasers Doped-insulator lasers and other solid state lasers Engineering Exact sciences and technology Fundamental areas of phenomenology (including applications) Industrial applications Laser optical systems: design and operation Laser processing Lasers Nonlinear optics Optical Devices Optics Photonics Physical Chemistry Physics Physics and Astronomy Q-switching Quantum Optics Trains
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Beschreibung
Zusammenfassung:	A single-axial-mode, passively Q-switched (PQS) diode-pumped Nd:YAG laser, generating a diffraction-limited beam train of ≈40–60 μJ, ∼500-ps pulses with adjustable repetition rate in the range 1–10 kHz, was efficiently amplified by a single side-pumped Nd:YVO 4 bounce amplifier. After double-pass amplification, ≈1-MW pulse peak power with 577-ps duration and 545-μJ energy was achieved, still maintaining diffraction-limited beam performance. The average output power was 5.45 W at 10 kHz, corresponding to 13% extraction efficiency. The high brightness of this laser system seems ideal for nonlinear optics and some particular laser processing applications.
ISSN:	0946-2171 1432-0649
DOI:	10.1007/s00340-009-3813-4