期刊
OPTICS COMMUNICATIONS
卷 326, 期 -, 页码 24-28出版社
ELSEVIER
DOI: 10.1016/j.optcom.2014.04.012
关键词
Fiber laser; Tunable-wavelengths; Q-switched; Graphene
类别
资金
- National Natural Science Foundation of China [11074065, 11374089, 61308016]
- Hebei Natural Science Foundation [F2012205076, A2012205023]
- Specialized Research Fund for the Doctoral Program of Higher Education of China [20101303110003]
- Technology Key Project of Colleges and Universities of Hebei Province [ZH2011107, ZD20131014]
An all fiber, wavelength tunable. Q-switched erbium-doped fiber laser (EDEL) based on a graphene saturable absorber (SA) and an unbalanced Mach-Zehnder interferometer (UMZI) has been demonstrated. The wavelengths of the Q-switched laser can be accurately tuned over a range of similar to 35 nm by inserting into the cavity an UMZI with a variable optical delay line (OVDL) in one arm, which acts as an optical beam filter into the cavity. The Q-switched pulse duration and the pulse energy have all been characterized. The maximum pulse energy of 36.9 nJ was obtained. (C) 2014 Elsevier B.V. All rights reserved
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