Graphene-based passively Q-switched dual-wavelength erbium-doped fiber laser.
Abstrak
We demonstrate a compact Q-switched dual-wavelength erbium-doped fiber (EDF) laser based on graphene as a saturable absorber (SA). By optically driven deposition of graphene on a fiber core, the SA is constructed and inserted into a diode-pumped EDF laser cavity. Also benefiting from the strong third-order optical nonlinearity of graphene to suppress the mode competition of EDF, a stable dual-wavelength Q-switching operation has been achieved using a two-reflection peak fiber Bragg grating as the external cavity mirror. The Q-switched EDF laser has a low pump threshold of 6.5 mW at 974 nm and a wide range of pulse-repetition rate from 3.3 to 65.9 kHz. The pulse duration and the pulse energy have been characterized. This is, to the best of our knowledge, the first demonstration of a graphene-based Q-switched laser.
Topik & Kata Kunci
Penulis (7)
Zhengqian Luo
Min Zhou
Jian Weng
Guoming Huang
Huiying Xu
C. Ye
Z. Cai
Akses Cepat
- Tahun Terbit
- 2010
- Bahasa
- en
- Total Sitasi
- 472×
- Sumber Database
- Semantic Scholar
- DOI
- 10.1364/OL.35.003709
- Akses
- Open Access ✓