Journal
APPLIED OPTICS
Volume 53, Issue 19, Pages 4089-4093Publisher
OPTICAL SOC AMER
DOI: 10.1364/AO.53.004089
Keywords
-
Categories
Funding
- National Natural Science Foundation of China [61275050, 61177044]
- Natural Science Foundation of Fujian Province of China [2011J01370]
- Specialized Research Fund for the Doctoral Program of Higher Education [20120121110034]
- Fundamental Research Funds for the Central Universities [2011121048]
Ask authors/readers for more resources
We demonstrate a large-energy, wavelength-tunable, all-fiber passively Q-switched Er:Yb-codoped laser using a mono-layer chemical vapor deposition (CVD) graphene saturable absorber (SA). By exploiting the large laser gain of Er:Yb double-clad fiber and optimizing the coupling ratio of the output coupler, not only can the mono-layer CVD graphene SA be protected from oversaturation and thermal damage, but also a large pulse energy up to 1.05 mu J (corresponding to the average output power of 25.6 mW) is thus achieved. Using a tunable fiber Fabry-Perot filter, stable Q-switched pulses can operate with a tunable range from 1530.97 to 1546.92 nm, covering a wavelength range of similar to 16 nm. The Q-switching states at the different lasing wavelengths have been observed and recorded. The Q-switched repetition rate and the pulse duration (with the minimum one of 2.6 mu s) have been characterized as well. This is, to the best of our knowledge, the largest pulse energy from an all-fiber graphene Q-switched laser. (C) 2014 Optical Society of America
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available