Abstract
We report a diode-pumped 2.78 μm Er3+-doped ZBLAN fiber laser passively Q switched by a graphene saturable absorber, which was directly deposited onto a fiber dichroic mirror by the method of optically driven deposition. Stable Q-switched operation with a pulse duration of 2.9 μs and a pulse energy of 1.67 μJ was achieved in a 10mlong gain fiber. The pulse duration was reduced to 1 μs when the gain fiber length was shortened to 2 m. This Letter demonstrates that graphene is a promising and reliable saturable absorber for mid-infrared pulse generation at 3 μm.
Original language | English (US) |
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Pages (from-to) | 3233-3236 |
Number of pages | 4 |
Journal | Optics letters |
Volume | 38 |
Issue number | 17 |
DOIs | |
State | Published - Sep 1 2013 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics