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Efficient femtosecond Yb:YAG laser pumped by a single-mode laser diode

Authors
Journal
Optics Communications
0030-4018
Publisher
Elsevier
Publication Date
Volume
284
Identifiers
DOI: 10.1016/j.optcom.2011.04.046
Keywords
  • 70.020 (Laser Sources)
  • 70.030 (Ultrashort Pulse Generation)
  • 70.050 (Laser Materials)
Disciplines
  • Medicine

Abstract

Abstract Single-mode diodes enable a particularly simple, compact and effective pumping of solid-state laser devices for many specialized applications. We investigated a single-mode, 300-mW laser diode for pumping at 935 nm a Yb:YAG laser passively mode-locked by a semiconductor saturable absorber. Relatively short pulse generation (156 fs), tunable across 1033–1059 nm has been demonstrated. An optical-to-optical efficiency of about 28% has been obtained with 320 fs long pulses. Therefore, contrarily to what previously believed, compact diode-pumped ultrafast Yb:YAG oscillators can reliably and efficiently deliver pulses in the range of ≈ 100–200 fs with few tens of mW, which are very appealing for bio-diagnostics and amplifier seeding applications.

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