Tm-doped fiber laser mode-locked by graphene-polymer composite
Abstract
We demonstrate mode-locking of a thulium-doped fiber laser operating at 1.94\mu m, using a graphene-based saturable absorber. The laser outputs 3.6ps pulses, with~0.4nJ energy and an amplitude fluctuation~0.5%, at 6.46MHz. This is a simple, low-cost, stable and convenient laser oscillator for applications where eye-safe and low-photon-energy light sources are required, such as sensing and biomedical diagnostics
- Publication:
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Optics Express
- Pub Date:
- October 2012
- DOI:
- arXiv:
- arXiv:1208.1804
- Bibcode:
- 2012OExpr..2025077Z
- Keywords:
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- Condensed Matter - Mesoscale and Nanoscale Physics;
- Condensed Matter - Materials Science;
- Physics - Optics
- E-Print:
- Optics Express 20, 25077 (2012)