Journal
IEEE PHOTONICS JOURNAL
Volume 6, Issue 2, Pages -Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JPHOT.2014.2309631
Keywords
Lasers; Q-switching; nonlinear optical materials
Funding
- National Natural Science Foundation of China [61108026]
- Xi'an Institute of Optics and Precision Mechanics of the Chinese Academy of Sciences [Y355441213]
- Specialized Research Fund for the Doctoral Program of Higher Education of China [20114408120001]
- Foundation for Distinguished Young Talents in the Higher Education of Guangdong, China [LYM11107]
- Shenzhen Municipal Science and Technology Research and Development Funds of China [JCYJ20120613170553295]
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province [GD201303]
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Liquid saturable absorbers have some advantages in some aspects over solid saturable absorbers. In this paper, graphene oxide in heavy water (deuteroxide, D2O) dispersion was fabricated and used as absorber in Q-switched Nd:YAG laser for the first time, to the best of our knowledge. The shortest pulse width of the Q-switched laser is 523 ns, corresponding to a repetition rate of 92.9 kHz. The maximum peak power of Q-switched pulse is 6.6 W. Such a liquid absorber has the virtues of good optical transparency, high heat dissipation, and no contact damage.
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